Locking device for operating handle of hydraulic bracket of fully mechanized mining machine

Abstract

The invention discloses a locking device for an operating handle of a hydraulic bracket of a fully mechanized mining machine and relates to a handle protection device. A steel plate (2) at one end and a steel plate (13) at the other end are arranged outside guard plates (3) at both ends of a control valve (25); both ends of a rotating rod (4) and a rotating rod (22) at the other side are movably chained to the upper parts of the steel plate at one end and the steel plate at the other end; two resetting springs (6) are respectively sleeved on the rotating rod and the rotating rod at the other side; the outer lateral surface of the upper end of a fixed plate (14) is provided with a bump (10); a rod (19) at the lower end of a lifting handle (9) is movably inserted in a hole of the bump; an external screw thread formed at the lower end of the bump of the rod is sleeved with a positioning nut (16); both ends of a spring (18) on the external screw thread are respectively pressed against the opposite faces of the bump and the positioning nut; both sides of the lower face of the lifting handle are respectively provided with locking hooks (24). The locking device for the operating handle of the hydraulic bracket of the fully mechanized mining machine implements the technical requirements that a safety coefficient of the operating handle of the fully mechanized mining machine is increased and the operating handle of the fully mechanized mining machine is difficult to start by an external force.

Description

【Technical field】 [0001] The invention relates to a handle protection device, in particular to a fully mechanized mining machine hydraulic support operating handle locking device. 【Background technique】 [0002] According to Article 67 of the "Coal Mine Safety Regulations", when comprehensive mechanical coal mining is adopted, the support must be kept in a straight line, the hydraulic support must be connected to the roof, and the roof must be supported in advance when the roof is broken; however, the shearer must be timely when mining coal. Moving the frame, this process must ensure the normal use of the support; however, in the actual production process, due to the constraints of many factors such as small on-site operation area and poor sightlines, the hydraulic support especially fails, which will bring safety to the mine. Hidden dangers; when our mine introduced the hydraulic support, it was found that the control valve of the hydraulic support did not have any safety m...

AI Technical Summary

Problems solved by technology

[0002] According to Article 67 of the "Coal Mine Safety Regulations", when comprehensive mechanical coal mining is adopted, the support must be kept in a straight line, the hydraulic support must be connected to the roof, and the roof must be supported in advance when the roof is broken; however, the shearer must be timely when mining coal. Moving the frame, this process must ensure the normal use of the support; however, in the actual production process, due to the constraints of many factors such as small on-site operation area and poor sightlines, the hydrauli

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