Multi-rope winding type stage hoisting machine

Abstract

The invention discloses a multi-rope winding type stage hoisting machine comprising a spindle system, a drive motor, a transmission mechanism, a braking system, a hydraulic station, a manipulation and indication system, a hoisting container and steel wire ropes. The multi-tope winding type stage hoisting machine is characterized in that the hoisting container is divided into a head container and a bottom container, wherein the head container is hung on a winding drum of a spindle and the bottom container is hung below a top container; an underground chamber used for converting and hoisting a load is arranged on a position approaching the middle section of a pitshaft; when the top container hung on one winding drum is hoisted to an unloading position of a well mouth, the bottom container is hoisted to the underground chamber on the middle section of the pitshaft to unload, and the top container hung on the other winding drum is loaded with the load unloaded from the bottom container while the bottom container is loaded with the load from the pitbottom; when the loading process is completed, the containers full of loads start to be hoisted, and the unloaded containers are put down; thus, the loads at the pitbottom are hoisted out of the pitshaft through two-stage hoisting. The invention has the advantages of reducing the sizes of the hoisting container and the pitshaft, reducingthe diameter of the hoisting steel wire ropes, enhancing the safety of a hoisting system, satisfying deep pit hoisting requirements, greatly reducing the rope capacity of a hoisting winding drum, reducing the winding layer numbers of the steel wire ropes and avoiding the multilayer transition problem of the steel wire ropes.

Description

technical field [0001] The invention relates to the field technology of a mine hoist, in particular to a multi-rope winding stage hoist. Background technique [0002] Mine hoist is one of the important and key equipment in mines. It is mainly used in coal mines, metal mines and non-metal mines for hoists and decentralized personnel to lift coal, ore, and transport materials and equipment. It is an important means of transportation to connect the well and the underground. It occupies a very important position in the mine and is an important equipment of the mine. The mine hoist is developed from the hand potter's wheel. With the development of science and technology, the hoist has developed from KJ type to JKA type, and from XKT type, XKTB type to the current JK type formed product. [0003] But conventional single-rope hoist and multi-rope hoist all have some technical defects in actual use. [0004] For example, the main problems of the single-rope winding hoist in deep ...

AI Technical Summary

Problems solved by technology

[0005] (1) The diameter of the steel wire rope is required to be very large when deep wells are hoisted, and the manufacture and use of large diameter steel wire ropes are inconvenient

[0006] (2) Each lifting container is lifted with only one wire rope, and serious accidents will occur when the wire rope breaks

[0007] (3) The width of the hoist drum directly affects the rope capacity and hoisting depth of the hoist, but increasing the width of the drum will increase the width of the shaft, thereby increasing the mine construction cost

[0008] (4) The hoist is driven by a motor through an elastic pin coupling, a planetary reducer and a gear coupling, with a complex structure and a large footprint

Rope adjustment oil cylinder or interlock valve leaks oil and pollutes the brake disc, seriously affecting the safety and reliability of the brake

[0009] (5) Two reels are installed on the same main shaft of the hoist. When the width of the reel increases, the main shaft of the hoist is lengthened and thickened, and the production, processing and transportation of the main shaft are affected.

[0010] (6) Due to the limitation of the drum structure, only one wire rope can be wound on a drum

[0014] (1) The diameter of the steel wire rope is required to be large when deep wells are lifted, and the length of the steel wire rope is required to be very long. The manufacture and use of large-diameter and long-length steel wire ropes are inconvenient

[0015] (2) The drum width of the multi-rope winding hoist is limited by the structure of the main shaft device, and the width is limited. When the length of the wire rope is very long, it must be wound in multiple layers to meet the needs. However, according to the safety regulations of our country, the wire rope of the shaft hoisting system shall not exceed two Layer winding, which severely limits the lifting height of the multi-rope winding hoist

[0016] (3) Each reel of the multi-rope winding hoist can only lift one lifting container. When the lifting depth is very deep, in order to ensure the production efficiency of the mine, a certain production capacity must be achieved, and the overall size of the lifting container will have to be designed very Large, and overly large lifting containers are problematic in design, production and use

[0017] (4) Because the size of the lifting container is larger, the size of the shaft will also increase accordingly, which will increase the cost of mine construction for deep wells

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