Intelligent anti-impact bracket device

Abstract

The invention belongs to underground coal mining equipment and in particular relates to an intelligent anti-impact bracket device. The intelligent anti-impact bracket device comprises a top beam (2), a bottom beam (3), dowels (1), a hydraulic bracket (4), a baffle (5), a stress sensor (6) and a displacement sensor (8), wherein the top beam (2) and the bottom beam (3) are divided into two half parts from the middle position; two half top beams (2) and two half bottom beams (3) are in pin connection at the dividing position through the dowels (1); the upper end of the hydraulic bracket (4) is connected with the top beam (2); the lower end of the hydraulic bracket (4) is connected with the bottom beam (3); the baffle (5) is arranged between the top beam (2) and the bottom beam (3); the stress sensor (6) is arranged on the middle part of the baffle (5); and the displacement sensor (8) and an anti-impact component (7) are arranged on the side of the lower part of the hydraulic bracket (4). The elasticity and anti-impact capacity of the hydraulic bracket are enhanced, and the intelligent anti-impact bracket device has high overall structural stability, can be folded, and is convenient to carry and mount.

Description

Technical field [0001] The invention belongs to underground coal mining equipment, and particularly relates to an intelligent anti-impact support device. Background technique [0002] Deep mining is an inevitable trend in the development of the coal industry. The structural characteristics, deformation and failure characteristics, energy release characteristics and engineering response characteristics of deep coal and rock masses are significantly different from those of shallow ones, which are more likely to induce rock burst disasters, causing serious underground damage and casualties. The accident, which has become the evidence of major coal mine accidents in recent years. Therefore, the safety support of surrounding rock in rockburst mine roadways has become an urgent research issue in my country's deep resource development. Hydraulic supports have achieved good results as a passive support method for coal mine roadways. However, statistical analysis of the destruction of a ...

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Problems solved by technology

Hydraulic support has achieved good results as a passive support method for coal mine roadways. However, according to the statistical analysis of a large number of support failures, the existing supports mainly have the following problems: poor resistance to impact loads. When impacts come, it is easy to cause damage to supports and roadways; The load capacity is poor. When the two gangs are pressed, the bracket is easy to fall and be damaged; there is no ability to resist the bottom drum. When the bottom drum is used, the bracket cannot bear the bottom load

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