China CMM2-20 Hydraulic Bolting Rig for Coal Mine

I. General of CMM2-20 Bolting Rig
CMM2-20 Hydraulic bolting jumbo is a new supporting machinery for tunneling. Using with tunneling drill jumbo, it would work for high tunnel supporting, and improves present tunneling technics. The supporting height could be 3-4.5m, width could be 1.2-3.2m, and slopes could be ±15°.
CMM2-20 Hydraulic bolting jumbo has the following features in design:
Structure is reasonable, compact and good in rigidity.
The jumbo adopts direct hydraulic control, and is easy operation and maintenance.
Hydraulic motor drives travelling. Track tension use cylinder.
Small overall size improves transportation efficiency in underground mine.
Front supporting device with three-stage cylinder fully protects worker's safety.
This bolting jumbo features high efficiency, easy operation and maintenance, and reliable working.
Executive standard: Q/JQP02-2008 MT/T199-1996

III. Working Environment Condition
Altitude is no more than 2000m;
Temperature is between -5ºC to +40ºC
Relative air humidity is no more than 95%(25ºC)
Could work in the mine that contains gas and other explosive mixed gas.
In the environment of no broken insulating gas or team.
The place no continuous dripping.
IV. Main Technical Parameters of CMM2-20 Bolting Rig
Main machine performance
Boom qty.: 2 pcs
Cross section: 9-24.75 M2
Working area (WxH): 3000-5500x3000-4500mm
Overall size(LxWxH): 5700x1300x2700mm
Min. turning radius: 2500mm
Stabilization while drilling: Temporary support
Width while drilling: 1300mm
Weight: 15000 kg
Min. ground clearance: 200
Ground pressure: 0.1 mPa
Hole dia.: Φ27mm
Hole depth: 0~18m
Drill rod: B19
Blasthole dia.: Φ42mm
Drill rod for blast hole: Φ40mm, Twist drill
Blasthole depth: 0~10m
Detecting hole dia.: Φ27-48mm
Detecting hole depth(f=3-8): 50m(horizontal)
Total installed power: 45KW
Drilling mechanism
Type: Hydraulic motor, rotation type
Motor model: BM-125
Rated torque: 278 N·m
Rated rotation speed: 550 r/min
Motor displacement: 125 ml/r
Working pressure: 15 MPa
Working flow: 70 L/min
Drilling speed: 1000 mm/min
Flushing pressure: 0.2~0.8 MPa
Hole dia.: Φ27 mm
Drilling tool specification: B19
Feeder
Feeding method: Hydraulic cylinder+ wire rope
Min. length: 1400mm
Feeding stroke: 1654mm
Feeding power: 10kN
Feeding speed: 5000mm/min
No-load return speed: 5000 mm/min
Working pressure: 10MPa
Working flow: 10L/min
Boom
Type: Mechanism+ hydraulic cylinder
Feeder front & rear rotation: 180°
Feeder left & right rotation: 180°
Boom compensation: 1200mm
Boom rotation driven type: Hydraulic cylinder
Boom front & rear rotation: 0-42°
Boom swinging: 0-45°
Working pressure: 14MPa
Working flow: 13L/min
Travelling mechanism
Driven type: Hydraulic motor + reducer
Hydraulic motor model: ERR-130B
Motor rated pressure: 25MPa
Motor displacement: 56ml/r
Travelling method: crawler-type
Travelling speed: 0-40m/min
Gradeability: ±15°
Grounding track length: 2275mm
Track shoe width: 400mm
Track pitch: 154mm
Track center distance: 900mm
Working pressure: 20MPa
Working flow: 60L/min
Hydraulic pump station
Electric motor model: YBK250M-4
Electric motor type: Mining explosion-proof
Electric motor rated power: 55kW
Electric motor rated voltage: 1140/660V
Electric motor rated current: 28/48.6 A
Electric motor rated speed: 1480 r/min
Oil pump rated pressure: 20MPa
Oil pump displacement: 130/25ml/r
Oil tank capacity: 600L
Hydraulic oil: N46
Working pressure: 20MPa
Electric system
Voltage: 1140/660/380V
Current: 80A
Power: 45KW
Frequency: 50Hz
Vacuum electromag-netic starter
Type: Mining explosion-proof & intrinsically safe
Rated current: 80A
Max. control power: 90/60KW
Quakeproof light
Rated voltage: 36V
Rated power: 35W
Type: Mining explosion-proof
Model: LA810-36-2
Control button
Rated voltage: 36V
Rated current: 5A
Type: Mining explosion-proof
Model: DJ4G
Water system
Type: Supply external adapter
External flushing pressure: 1.5~2MPa
External flushing flow: 30L/min
Cooler: Water-cooling
Cooler withstand pressure: 3MPa