Working platform for hydraulic combined anchor drilling rig

Abstract

The invention discloses a working platform for a hydraulic combined anchor drilling rig. A main frame and an auxiliary frame are mutually supported and are pushed to move forward by alternate top supporting of a pushing hydraulic cylinder, an assisting anchor drilling machine is pushed out 0.8 m under the effect of the pushing hydraulic cylinder pre-embedded in a drilling rig substructure, and assisting anchor work is completed by staggered operation of the two sides. A retractable gang drilling frame can be pushed forward for two step pitches under the effect of a double telescopic hydraulic cylinder, and each step pitch is 0.8 m. The retractable gang drilling frame can reach the horizontal state and the vertical state under the effect of an overturning hydraulic cylinder, work of a tunneling machine is not influenced under the horizontal state, anchor drilling work for one row of seven top anchors with the length being 2.4 m can be completed at a time under the vertical state. The working platform for the hydraulic combined anchor drilling rig is suitable for mechanized rapid tunneling system under the soft condition, and can further be applied to other mines of the geological conditions which require the anchor rod to be set, and the forming effect and the supporting performance of a roadway are improved.

Description

technical field [0001] The invention relates to a working platform of a bolter drilling rig for underground tunneling. Background technique [0002] The working platform of WLZ-7 / 2 hydraulic combination rock bolt rig, referred to as the anchor drilling platform, is mainly developed and designed for the special geological conditions of Hancheng mining area and the actual production problems of the tunneling face. The f coefficient of the coal in the Hancheng mining area is 0.15-0.3, the texture is soft, and the strength of the roof is low. When the roadway is excavated, if the two gangs cannot be supported in time, it is very easy to cause the phenomenon of splitting, which will directly affect the forming effect and support of the roadway. protection performance. At present, the support process of the excavation face is manual brushing, net laying + drilling and anchoring with a hand-held pneumatic bolter. This process has a low degree of automation, which seriously restric...

AI Technical Summary

Problems solved by technology

The f coefficient of the coal in the Hancheng mining area is 0.15-0.3, the texture is soft, and the strength of the roof is low. When the roadway is excavated, if the two gangs cannot be supported in time, it is very easy to cause the phenomenon of splitting, which will directly affect the forming effect and support of the roadway. protective performance

At present, the support process of the excavation face is manual brushing, net laying + drilling and anchoring with a hand-held pneumatic bolter. This process has a low degree of automation, which seriously restricts the advancement speed of the excavation face and the further improvement of the company's coal production capacity.

However, due to the limitation of space and other factors, the domestic mature quick excavation system cannot meet the actual needs of our company's mines.

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