CN214439466U

CN214439466U - Strip coal screening and crushing device for underground coal mine

Info

Publication number: CN214439466U
Application number: CN202023036791.3U
Authority: CN
Inventors: 翟学军; 王龙蛟; 付之有; 李永明; 高霞; 张代祥; 祁怀强; 范士峰; 罗宏伟; 孙长鹤; 牛强; 杨存灵
Original assignee: Yanzhou Coal Mining Co Ltd; China Coal Zhangjiakou Coal Mining Machinery Co Ltd
Current assignee: Yanzhou Coal Mining Co Ltd; China Coal Zhangjiakou Coal Mining Machinery Co Ltd
Priority date: 2020-12-17
Filing date: 2020-12-17
Publication date: 2021-10-22
Anticipated expiration: 2030-12-17

Abstract

The utility model relates to a colliery is mechanized mining field in the pit, specifically is a colliery is rectangular coal screening breaker in the pit, including broken support body, low-speed motor, link plate, walking wheel, transmission, crushing roller, sawtooth roller, broach roller, this breaker install the belt from moving the tail on and pass through the link plate hookup with the dolly, the elevating conveyor overlap joint is to the dolly on, like this the elevating conveyor can be at the belt from moving the tail on synchronous walking with breaker, its theory of operation does: the elevating conveyor unloads the coal onto the comb teeth roller, and through the screening of two comb teeth rollers, most of the coal with small granularity falls down, and rectangular coal will be screened out and transported between the saw teeth roller and the crushing roller, and then is broken by the crushing roller rotating at a high speed. The long-strip coal conveyed by the transfer conveyor can be hidden everywhere through the crushing device, so that the belt can be effectively protected from being damaged by the long-strip coal, the use failure rate of the belt conveyor is effectively reduced, the labor load of workers is reduced, and the mining and transportation efficiency of a mine is improved.

Description

Strip coal screening and crushing device for underground coal mine

Technical Field

The utility model relates to a colliery is mechanized mining field in the pit, specifically is a colliery is with rectangular coal screening breaker in the pit.

Background

In the coal mining process, the pressure of the top plate is high, so that the coal wall caving wall generates a large amount of large coal blocks and long coal strips, the large coal blocks are basically crushed into required granularity after passing through the hammer crusher arranged between the crossheading reversed loaders, and the long coal strips are buried below the hammer crusher and are difficult to crush due to low height. When long-strip coal leaked by the hammer crusher is unloaded onto the belt conveyor, the belt is often scratched due to impact and is also easily transversely blocked in the middle of the belt, so that the belt conveyor is blocked and stopped, the coal conveying efficiency and the service life of equipment are seriously affected, and the labor intensity and the danger degree of workers are increased. Therefore, the device capable of screening and crushing the long coal is urgently needed for building a downhole efficient mining and transportation system.

Disclosure of Invention

In view of this, the utility model aims at providing a colliery is rectangular coal screening breaker in pit. The device arranges on the belt is from moving the tail, can sieve the rectangular coal that the elevating conveyor aircraft nose uninstalled and break, and better protection belt effectively reduces belt feeder service failure rate, reduces workman's work load, improves mine mining and transportation efficiency.

The utility model adopts the technical proposal that: a coal mine underground long coal screening and crushing device comprises a crushing frame body 1, a low-speed motor 2, a connecting plate 3, a traveling wheel 4, a transmission device 5, a crushing roller 6, a sawtooth roller 7 and a comb tooth roller 8; the crushing roller 6, the sawtooth roller 7 and the two comb-tooth rollers 8 are all arranged in the crushing frame body 1, and the transmission device 5 and the two low-speed motors 2 are arranged on the outer side of the crushing frame body 1; the two comb teeth rollers 8 are respectively driven by the low-speed motor 2, and the crushing roller 6 is driven by the transmission device 5.

Further, the two comb-tooth rollers 8 are arranged in parallel in the crushing frame body 1 in an inclined downward mode, the sawtooth roller 7 is arranged on the lower left side of the comb-tooth rollers 8, and the crushing roller 6 is arranged on the left side of the sawtooth roller 7; the crushing roller 6 rotates clockwise at a high speed, the sawtooth roller 7 rotates in a driven way, and the two comb tooth rollers 8 both rotate anticlockwise.

Further, the crushing roller 6 comprises a shaft A61 and crushing teeth 62, and both the shaft A61 and the crushing teeth 62 have higher strength; the sawtooth roller 7 comprises a shaft B71 and sawteeth 72, and both the shaft B71 and the sawteeth 72 have higher strength; the comb teeth roller 8 comprises a shaft C81 and comb teeth 82, and the comb teeth 82 are arranged in a vertically staggered manner, so that the passing capacity of the small-granularity coal is ensured; the shaft diameters of the crushing roller 6 and the sawtooth roller 7 are larger than that of the comb tooth roller 8, and the sawtooth 72, the crushing teeth 62 and the comb teeth 82 are arranged in a staggered and crossed manner, so that long coal can be fully crushed, and the passing capacity of the coal is not influenced.

Further, the crushing frame body 1 and the trolley B are connected together through a connecting plate 3, a plurality of positioning pin holes are arranged on the connecting plate 3 at equal intervals, and the distance L between the crushing frame body 1 and the reversed loader A can be adjusted through different pin hole connection positioning; the walking wheels 4 are connected with the crushing frame body 1 through pin shafts, the crushing frame body 1 can be supported to walk on the belt self-moving machine tail C, and the reversed loader A and the crushing device synchronously walk on the belt self-moving machine tail C.

The utility model relates to a colliery is with rectangular coal screening breaker in pit can sieve out and breakage with the rectangular coal that the elevating conveyor uninstallation got off, can effectively protect the belt and avoid receiving the damage of rectangular coal, effectively reduces belt feeder service failure rate, reduces workman's work load, improves mine adopt and transport efficiency.

The technical solution of the present invention will be described in detail with reference to the accompanying drawings and the detailed description.

Description of the drawings:

FIG. 1 is a schematic view of the operation principle of the coal mine underground long coal screening and crushing device of the present invention;

FIG. 2 is a top view of the long coal screening and crushing device of the present invention;

FIG. 3 is a front view of the crushing roller of the present invention;

FIG. 4 is a front view of the saw teeth roller of the present invention;

FIG. 5 is a front view of the comb teeth roller of the present invention;

in the figure: 1 crushing frame body, 2 low-speed motors, 3 connecting plates, 4 traveling wheels, 5 transmission devices, 6 crushing rollers, 61 shafts A, 62 crushing teeth, 7 saw tooth rollers, 71 shafts B, 72 saw teeth, 8 comb tooth rollers, 81 shafts C, 82 comb teeth, A reversed loader, B trolley, C belt self-moving tail and M long-strip coal

The specific implementation mode is as follows:

the following detailed description of the embodiments of the present invention is made with reference to the accompanying drawings:

as shown in fig. 1 and 2, the structure of the long coal screening and crushing device for the underground coal mine of the utility model comprises a crushing frame body 1, a low-speed motor 2, a connecting plate 3, a traveling wheel 4, a transmission device 5, a crushing roller 6, a sawtooth roller 7 and a comb roller 8; the crushing roller 6, the sawtooth roller 7 and the two comb-tooth rollers 8 are all arranged in the crushing frame body 1, and the transmission device 5 and the two low-speed motors 2 are arranged on the outer side of the crushing frame body 1; the two comb-tooth rollers 8 are respectively driven by the low-speed motor 2 independently, and the transmission device 5 drives the crushing roller 6 to rotate at a high torque and a high speed, so that the crushing capacity is high.

The two comb teeth rollers 8 are arranged in parallel in the crushing frame body 1 in an inclined downward mode to form a roller screen, each comb teeth roller 8 comprises a shaft C81 and comb teeth 82, and the comb teeth 82 are arranged in an up-and-down staggered mode to ensure that small-granularity coal can fully fall when passing through the comb teeth rollers; the sawtooth roller 7 is arranged at the lower left of the sawtooth roller 8, the crushing roller 6 is arranged at the upper left of the sawtooth roller 7, and the shaft diameters of the crushing roller 6 and the sawtooth roller 7 are both larger than the shaft diameter of the sawtooth roller 8; the crushing roller 6 comprises a shaft A61 and crushing teeth 62, the sawtooth roller 7 comprises a shaft B71 and sawteeth 72, and the shaft A61, the crushing teeth 62, the shaft B71 and the sawteeth 72 have high strength and have the capacity of crushing large coal; the saw teeth 72, the crushing teeth 62 and the comb teeth 82 are arranged in a staggered and crossed manner; two broach rollers 8 are anticlockwise rotation, can transport 7 with crushing roller 6 departments of sawtooth roller with rectangular coal screening, and crushing roller 6 is clockwise high-speed rotatory, and the interlock through with sawtooth roller 7 is abundant broken the falling of rectangular coal.

The crushing frame body 1 and the trolley B are connected together through a connecting plate 3, a plurality of positioning pin holes are arranged on the connecting plate 3 at equal intervals, and the distance L between the crushing frame body 1 and the reversed loader A can be adjusted through different pin hole connection positioning; the walking wheels 4 are connected with the crushing frame body 1 through pin shafts and can support the crushing frame body 1 to walk on the belt self-moving tail C; the reversed loader A is in lap joint with the trolley B, so that the reversed loader and the crushing device can synchronously walk on the belt self-moving tail C.

The foregoing detailed description of the embodiments of the invention with reference to preferred embodiments is illustrative rather than limiting in form. On reading the present disclosure, those skilled in the art may modify the technical solutions described in the embodiments or may substitute part of the technical features of the embodiments, and these modifications or substitutions do not make the essence of the corresponding technical solutions depart from the scope of the embodiments of the present disclosure.

Claims

1. The utility model provides a colliery is rectangular coal screening breaker in pit which characterized in that: comprises a crushing frame body (1), a low-speed motor (2), a connecting plate (3), a travelling wheel (4), a transmission device (5), a crushing roller (6), a sawtooth roller (7) and a combing roller (8); the crushing roller (6), the sawtooth roller (7) and the two comb-tooth rollers (8) are all arranged in the crushing frame body (1), and the transmission device (5) and the two low-speed motors (2) are arranged on the outer side of the crushing frame body (1); the two comb teeth rollers (8) are respectively and independently driven by the low-speed motor (2), and the crushing roller (6) is driven by the transmission device (5).

2. The underground coal mine long-strip coal screening and crushing device according to claim 1, wherein the two comb-tooth rollers (8) are arranged in parallel in the crushing frame body (1) in an inclined downward mode, the saw-tooth roller (7) is arranged on the lower left of the comb-tooth rollers (8), and the crushing roller (6) is arranged on the upper left of the saw-tooth rollers (7); the crushing roller (6) rotates clockwise at a high speed, the sawtooth roller (7) rotates in a driven way, and the two comb teeth rollers (8) rotate anticlockwise.

3. The coal mine underground long coal screening and crushing device as claimed in claim 1, wherein the crushing roller (6) comprises a shaft A (61) and crushing teeth (62), and the shaft A (61) and the crushing teeth (62) are high in strength; the sawtooth roller (7) comprises a shaft B (71) and sawteeth (72), and both the shaft B (71) and the sawteeth (72) have higher strength; the comb teeth roller (8) comprises a shaft C (81) and comb teeth (82), and the comb teeth (82) are arranged in a vertically staggered manner; the shaft diameters of the crushing roller (6) and the sawtooth roller (7) are both larger than the shaft diameter of the comb tooth roller (8), and the sawtooth teeth (72), the crushing teeth (62) and the comb teeth (82) are arranged in a staggered and crossed manner.

4. The underground coal mine long-strip coal screening and crushing device as claimed in claim 1, wherein the crushing frame body (1) and the trolley (B) are connected together through a connecting plate (3), and a plurality of positioning pin holes are formed in the connecting plate (3) at equal intervals; the walking wheels (4) are connected with the crushing frame body (1) through pin shafts, and the reversed loader (A) and the crushing device synchronously walk on the belt self-moving tail (C).