| 摘要 |
FIELD: mining. ^ SUBSTANCE: powered support for steep thin seams and seams of mean stability consists of the same type interchangeable linear sections. Each of the linear sections has a beam, a shoe, equipment section capsule, goaf side and near well-bore enclosure and elements of thrust, movement and correction. Adjustable frame is used as thrust and extension element with special horizontally arranged hydraulic jack for extension and thrust. Together with the beam they lean upon the bearing frame and then on the shoe. Note that inside the bearing frame there is equipment section capsule that can be extracted during equipment diagnosis and repair. ^ EFFECT: increase of stability and improvement of support movement, capsule protection from rock pressure influence. ^ 3 cl, 3 dwg |
