Railway Construction Heavy Industry Miniaturized Fully Computerized Three-arm Rock Drilling Jumbo Helps Plateau Railway Construction

Recently，Miniaturization newly developed by China Railway Construction Heavy IndustryZYS123AG-FLThe computerized three-arm rock drilling jumbo is working in a tunnel of the plateau railway.。The drilling jumbo is responsible for the excavation of the tunnel face.、Auxiliary charge、Pipe shed、Anchor bolt process，Average drilling speed of jumbo 3.5 meters/Minute，The equipment failure rate is low，Excavation footage of each shift is 3.More than 2 meters，The drilling operation time is 2.About 5 hours。

ZYS123AG-FLThe full-computer three-arm rock drill jumbo can solve that problem that the conventional three-arm rock drilling jumbo in the market is relatively large in size,，Difficult access to the tunnel。Overall length of trolley 15.7 meters，Width 2.65 meters，Wingspan boom structure is adopted，Maximum working height 12.6 meters，Maximum working width 15.8 meters，Maximum drilling depth of single rod 4.6 meters；The trolley is equipped with a full computer control system.，With efficient and accurate drilling、Anti-jamming drill rod anti-air striker、Fault diagnosis、Construction log record storage and other functions；At the same time, according to customer needs，The function has been expanded and upgraded.，So that that trolley has the function of anchor rod construction and exploratory hole construction。

1

Compact and flexible

The size of the whole machine is small，It is 83% of the conventional three-arm rock drilling jumbo%；Light weight，Is 81 of the conventional three-arm rock drilling jumbo%；The turning radius is small，It is 92% of the conventional three-arm rock drilling jumbo%，Secondary line trolley capable of quickly passing through、Inverted arch trestle、Cross passage in tunnel, etc.。

2

Strong adaptability

Arrange special connecting sleeve for anchor rod，So that that rock drill is provide with the functions of pus the anchor rod and rotationally applying the prestress of the anchor rod、Function of recording and uploading anchor construction information。27 kW impact and giant slalom torque rock drill，Used under the working condition of weak surrounding rockT51 Fast drill pipe drilling 30m exploratory hole。

3

And that construction efficiency is high

Conventional three-boom rock drilling jumbo is affected by the installation position of the basket arm，The operation range of the middle drill boom is small，And in that construction proces, the hanging basket arm need to be swung to match with the drilling of the working arm.，Affect the construction efficiency。ZYS123AG-FLThe basket arm of the three-arm drilling jumbo is cancelled.，Install the middle drill boom at the position of the original basket boom，And that integral drill efficiency is improved.，The use of this trolley saves about 20% of the drilling time per cycle-30 minutes。

China Railway Construction Heavy Industry will continue to adhere to customer demand-oriented，Carry out independent innovation，Vigorously develop informatization、Intelligent construction equipment，Contribute to the Intelligent Construction of Tunnels in China。

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