Heading machine provided with cantilever type front canopy supporting protection device

Abstract

The invention relates to a heading machine, in particular to a heading machine provided with a cantilever type front canopy supporting protection device, aiming at solving the problem that the existing heading machine is not provided with the supporting protection device. The heading machine comprises a front cantilever and a speed reducing device positioned on the front cantilever, wherein the outer wall of the speed reducing device is sheathed with a canopy base, the left and the right sides of which are articulated with telescopic racks, and each telescopic rack consists of a support plateand two support legs fixed under the support plate; the front end on the upper surface of the canopy base is articulated with a rotary beam, the other end of which is penetrated with a rotating shaftvertical to the rotary beam, and the two ends of the rotating shaft are fixed with support beam bases which are provided with grooves that are internally articulated with support beams; jacks of the telescopic racks are respectively articulated between the bottoms at the two sides of the canopy bases and the telescopic racks, jacks of the rotary beams are articulated between the support plates ofthe telescopic racks and the rotary beams, and jacks of the support beams are articulated between the rotary beams and the rotating shafts. The heading machine can reduce the time for supporting protection, lighten the labor intensity, and effectively improve the safety factor.

Description

technical field [0001] The invention relates to a roadheader, in particular to a roadheader with a cantilever type front probe beam support device. Background technique [0002] Due to the special environment of underground production in coal mines, tunneling is the same as coal mining, and various accidents may also occur during construction. Roof accidents on the tunneling face account for about 20% of the total roof accidents in coal mines. Roof accidents are mainly after the underground is excavated. A roadway is formed, and due to the effect of ground pressure, the top rock of this exposed roadway will sink and be exposed. In order to prevent such accidents, the roadway must be supported. [0003] The roadheader is mainly divided into two major operations of cutting and supporting when performing roadway excavation. The cutting speed of the roadway is generally faster, while the supporting operation time is relatively long and there are many auxiliary processes. At pr...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem that there is no tunneling machine with support device at present, but the existing temporary support device has long implementation time, high labor intensity and low safety factor, the present invention provides a cantilever type front probe beam support device. boring machine

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