1 TECHNICAL DESCRIPTION
1.1 General
The cbhdALPINE BOLTER MINER ABM20 was designed for rapid entry roadway development. It is basically a widehead Continuos Miner incorporating special design features with regards to coal cutting and loading.
疯狂猜图
Bolting rigs are an integrated part of this machine. The layout of the ABM20 allows space for 4 roof bolters and 2 rib bolters. All drill rigs as well as the rib bolters are placed immediately behind the cutter-drum.
This design enables a simultaneous cutting- and bolting operation.
In order to optimize the conditions for operators and face crew the machine is fitted with dust curtain and an onboard dust collecting channel.
The emphasis is an integration of well proven technology into one machine which gives bett
er advance rates. All of the VOEST-ALPINE's experience as a leading mining machine manufacturer, has been put into this innovative concept.
暗尖钢笔
The ALPINE BOLTER MINER ABM20 was designed on the same principles as VA-Road-headers resulting in a machine with greater availability thus giving higher performance rates.
ALPINE BOLTER MINER ABM20 features which are not available on other rapid entry machines:
∙Simultaneous cutting and bolting operation.
∙Integrated high pressure water flushing system for cutting drum.
∙Low rotation speed of the cutter-drum and high installed power, to reduce dust development to a minimum.
∙Onboard rib bolting rigs.
∙The loading- and conveying unit moves independently from the cutting device in order to achieve best loading efficiency.
∙Fully shielded bolting platforms.
∙Electronic controlled sump- and shear-movement to optimize the cutting quence as well as the work of the cutter motor.
∙固定单元格Radio remote control system for all functions - except drilling operation.
∙Low ground pressure of crawler tracks.
∙No movements of crawler tracks during sumping action (therefore no destruction of floor in soft conditions).
∙Fully supported roof for operators due do support-canopy behind the cutter drum.
∙Fully automated greasing system for low rvice requirements.
1.2 Dimensions
ALPINE BOLTER MINER ABM20
656.56900.673 A
showing a machine with operating height of 3.0 to 4.0 m (other operating heights like 2.8 to 3.8 m are also available)
1.3
毁伤Technical data
Serial No.:
1.3.1 General
| | operation | tramming |
Total length (without additional conveyor) | [mm] | approx. 10750 |
Total width | [mm] | 5000 | 4600 |
Total height, min. | [mm] | 2800 | 2600 |
Total weight | [t] | approx. 94 |
Max. ground pressure | [N/mm²] | approx. 22 |
Ground clearance | [mm] | 歌手排行 270 |
| | | |
1.3.2 Cutting system - widehead drum Miner
Max. vertical cutting (shearing) force | [kN] | 300 |
Sumping aid | longitudinal hydraulic slide |
Installed power | [kW] | 270 |
| | |
质量心得体会1.3.3 Bolting system
Distance roof support to face [mm] | approx. 1500/1800 |
Distance roof - rib [mm] | approx. 1200 |
Distance between center bolts [mm] | > 860 |
No. of bolts / W. strap | 2 - 8 |
Bolt length (single pass) [mm] | 2000 or 2400 |
Rib bolting | left and right |
Bolt type | Chemical |
Drilling | Rotating |
Drill diameter [mm] | 20 -50 |
Tightening torque [Nm] | 270 - 380 |
Drilling thrust [kN] | 15 - 23 |
| | |
1.3.4 Support canopy
