Technology of load-sensitivity used in the hydraulic system of an all-hydraulic core rig

The existing hydraulic system always have problems of temperature rise,runningstability and anti-interference of the implementation components,reliability of hydrauliccomponents,maintenance difficulties,and other issues.With high efficiency,energysaving,reliability,easy operating,stable running,anti-interference ability,and other advantages,the load-sensitive hydraulic system is more suitable for coal mine all-hydrauliccore rig.Therefore,for the technical development of the coal mine all-hydraulic core rig,the load-sensitive technology employed by the rig should be of great significance.

掘锚一体机机载锚杆钻机的研制

为提高掘进工作面锚杆支护作业的施工效率,研发了一款主要为掘锚一体机配套用机载锚杆钻机;钻机结构尺寸紧凑,与掘锚机配套适用性强,可实现多角度钻孔施工,具有调角速度快、钻孔效率高等优点;对钻机的给进装置、回转器及液压系统3个关键部分的设计进行了研究。试验表明:钻机结构设计合理,能满足掘锚一体机的锚杆支护快速施工。