Jining Guolong Jining C-shaped roof beam

Jining type roof beam good luck metal long beam D extended beam D long beam D metal roof beam D cross roof beam D double wedge roof beam D hinged roof beam D-shaped metal roof beam
D metal roof beam model D, D
D long beam metal roof beam model: D (,,,,,,,,,,,,,,,,,)
Cross-shaped metal roof beam model D*(,,,,)
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Double wedge roof beam model D
D metal roof beam model
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D metal roof beam: D/ D/ D/ D/
The roof beam specifications are divided into: .m, and .m extended beams. The above-mentioned top beam can be combined with hydraulic props or various types of single metal props with hinged tops to form a metal bracket. It is used to support the roof of horizontal and gently inclined mining working faces with a mining height of .-meter below the coal seam inclination angle. The roof above the working face conveyor can be cantilevered to provide a larger space between the coal wall and the pillars, thereby providing conditions for improving working conditions and using new coal mining machinery and bendable scraper conveyors to achieve general mechanization of coal mining. The D-type metal hinged roof beam is a brand new roof beam and a replacement product of the D-type roof beam. The beam body is butt-welded by two pieces of steel. The cross-sectional heights are , , and millimeters. Welding joints at one end of the beam and welding ears at the other end enable them to be hinged to each other.
Metal roof beam parameter table
=> Model
=> Allowable bending moment of hinged beam
Single beam bearing capacity
=> Overall tempered hardness
=> Beam section
Coefficient
=> Adjustment angle
=> Design
Unit weight
/
Minimum (max.)
Beam Body
Hinge
=
=
=
Up and down
Left and right
DD
.(.)
< br/> D
D

D
D
(.)
DD
DD
.
Note :, the bearing capacity is the concentrated load in the center of the beam when the fulcrum span is reached.
. The allowable bending moment D of the hinge is D is the end load D is, and D is the calculation.
The design weight does not include the weight of the angle-adjustable wedge.

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Double wedge roof beam D*/cross roof beam D*/cross roof beam
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. Meter long row beam type roof beam
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