A combined opening device for a large tonnage skip gate and a shroud

Abstract

An apparatus for jointly opening large-tonnage skip gates (11) and a diversion cover, comprising a skip, the skip gates (11) mounted at the front and rear sides of the skip, and a diversion cover gate (9) mounted at the left-side lower end of the skip. The skip gates (11) are pivotally connected at the upper end to the upper end of an opening of the skip and are driven by the opening apparatus to be opened or closed. The opening apparatus comprises hydraulic cylinder actuating apparatus (12) symmetrically arranged on both the front and rear sides of the skip and a multiple connecting rod mechanism. The hydraulic cylinder actuating apparatus (12) are connected to the skip gates (11) to drive the opening and closing thereof. The multiple connecting rod mechanism comprises connecting rod one (1), connecting rod two (4), connecting rod three (6), connecting rod four (7), connecting rod five (8), and a sliding groove fixing plate (13) for mounting the connecting rods. The apparatus implements simultaneous and joint opening and closing of the diversion cover gate and the skip gates via the multiple connecting rod mechanism and prevents the phenomenon of unsmooth coal slipping and coal retention caused by the diversion cover door not opening in time. The hydraulic cylinder actuating apparatus are used in tandem with the multiple connecting rod mechanism, thus allowing the process of opening the gates of the large-tonnage skip to be smooth, and greatly reducing the force of impact in a reset process.

Description

technical field [0001] The invention relates to a mining skip, in particular to a large-tonnage skip gate and diversion cover combined opening device, which belongs to the technical field of mine hoisting. Background technique [0002] In many aspects of coal mine production, the safe and reliable operation of the mine hoisting and loading system is very important to the safe and efficient production of the mine, and the mining skip is the main equipment installed in the mine hoisting system, and the coal is loaded into the mine through the loading equipment After the skip is lifted to the unloading position on the well, the gate opening and closing device opens the skip gate to unload the coal into the coal receiving bin. After unloading, the skip gate is closed to leave the unloading position, and then lowered to the bottom of the well for coal loading. [0003] With the development of coal mine production in the direction of large-scale, high-yield and high-efficiency, la...

AI Technical Summary

Problems solved by technology

However, for large-tonnage skips, the curved track connecting rod lower opening gate is likely to collide with the skip during the reset process after loading. The huge impact force during the collision process will cause the skip to deform and increase, resulting in a large gate maintenance workload; Moreover, the opening of the diversion hood gate and the skip gate of this structure is not synchronized, and the opening of the diversion hood gate is not timely, which is prone to poor coal sliding and coal stagnation; the mechanical limit of the gate is not accurate, and it is easy to fail to reset after opening. This phenomenon will not only seriously affect the lifting efficiency, but also may cause safety accidents

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