Coal mine supporting variable-angle spray structure
A variable-angle spraying technology, which is applied to the rock wall spraying structure, spraying structure, and coal mine support variable-angle spraying structure, can solve the problems affecting concrete condensation, large recoil force, and large rebound loss. Achieve the effect of simple structure, improve spraying efficiency and reduce waste
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[0027] A variable-angle shotcrete structure for coal mine support in the present invention is realized in the following way: a variable-angle shotcrete structure for coal mine support in the present invention consists of a hollow pipe (1), a sliding ring (2), a limit sleeve (3), Guide bar (4), drive rod (5), clamping ring (6), arc guide rail (7), limit block (8), inner groove (9), arc tube (10), fixing frame (11 ), a support wheel (12), a connecting pipe (13) and a guide plate (14). The clamping rings (6) are respectively placed on the outside of the fixing frame (11), the clamping rings (6) are placed obliquely, and the height of the position connected to the fixing frame (11) is the lowest, and the clamping rings (6) are composed of Made of rigid material, a plurality of supporting wheels (12) are respectively placed on the fixed frame (11), and are located in a plurality of clamping rings (6) one by one, and the inner ring of the clamping ring (6) is limited Position block...
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