Coal mine shaft hoisting system and its anti-resonance headframe

Abstract

The invention relates to the technical field of coal mine vertical shaft lifting systems, particularly provides a coal mine vertical shaft lifting system and an anti-resonance derrick thereof, and aims to solve the problem that a derrick is prone to resonance in the operation process of an existing coal mine vertical shaft lifting system, and a large potential safety hazard exists. For the purpose, the derrick comprises a first stand column, a second stand column, a third stand column and a fourth stand column, wherein each adjacent two stand columns among the first stand column, the second stand column, the third stand column and the fourth stand column are connected through a upper cross beam and a lower cross beam; first hoisting sheave mounting positions are arranged between the upperpart of the first stand column and the upper part of the fourth stand column, and second hoisting sheave mounting positions are arranged between the upper part of the second stand column and the upperpart of the third stand column; and a first diagonal bracing assembly is arranged at the position, located below the corresponding lower cross beam, between the first stand column and the second stand column, and / or a first diagonal bracing assembly is arranged at the position, located below the corresponding lower cross beam, between the third stand column and the fourth stand column. Through such arrangement, the natural frequency of the derrick is changed, and the risk of resonance is reduced.

Description

technical field [0001] The invention relates to the technical field of a coal mine shaft hoisting system, and specifically provides a coal mine shaft hoisting system and an anti-resonance head frame thereof. Background technique [0002] In coal mining sites, the coal mine shaft hoisting system is mainly used to transport the coal at the bottom of the shaft to the outside of the shaft. like figure 1 and figure 2 As shown, the existing coal mine shaft hoisting system mainly includes a derrick 1 straddling the top of the wellhead 6. The derrick 1 includes a first column 111, a second column 112, a third column 113 and a fourth column 114. The first column 111 It is connected with the second column 112 through the first upper beam 121 and the first lower beam 131 . The second column 112 and the third column 113 are connected by the second upper beam 122 and the second lower beam 132 at corresponding positions, that is, the second column 112 and the third column 113 are conn...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the above-mentioned problems in the prior art, that is, in order to solve the problem that the derrick is prone to resonance during the operation of the existing coal mine shaft hoisting system and there is a large safety hazard, the present invention provides a coal mine shaft hoisting system on the one hand. The resonance derrick, the derrick includes a first column, a second column, a third column and a fourth column, the first column and the second column are connected by a first upper beam and a first lower beam, and the second The column and the third column are connected by the second upper beam and the second lower beam at corresponding positions, and the third column and the fourth column are connected by the third upper beam and the third lower beam at corresponding positions. The fourth column and the first column are connected at corresponding positions through the fourth upper beam and the fourth lower beam; a first sky wheel installation position is provided between the first column and the upper part of the fourth column, and the A second wheel mounting position is provided between the second upright and the upper part of the third upright; a first oblique position is set between the first upright and the second upright below the first lower beam. brace assembly, and / or a first brace assembly is provided between the third column and the fourth column below the third lower beam

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