Scraper conveyer cross side dump headstock suitable for advancing type coal mining

Abstract

The invention relates to the technical field of coal mine fully mechanized coal mining face conveying, in particular to a scraper conveyor cross side dumping headstock suitable for advancing type coal mining. The cross side dumping headstock of the scraper conveyor is structurally characterized by comprising a pressing block I, a headstock body, a chain wheel assembly I, a tongue plate assembly I, a derailleur I, a movable middle plate assembly, a tongue plate assembly II, a derailleur II, a chain wheel assembly II, a pressing block II, a blocking plate assembly, a bolt, a lock washer and a pin nut. According to the main principle, the tail of a traditional crossheading scraper reversed loader is omitted, the operation positions of a scraper conveyor and a scraper chain of the crossheading scraper reversed loader are optimally designed, four layers of chain way spaces are designed in total, and the uppermost layer and the lowermost layer are the chain way spaces through which the scraper chain of the scraper conveyor passes; the two middle layers are chain channel spaces through which a scraper chain of the scraper reversed loader for the crossheading passes; a chain wheel assembly in the tail of a traditional crossheading scraper reversed loader and a scraper chain of the chain wheel assembly are integrated into the cross side dumping headstock of the scraper conveyer, so that the size of a side plate, protruding out of the headstock, of the tail of the crossheading scraper reversed loader is greatly reduced, and the walking space of a cutting roller of a coal mining machine is expanded; interference between the cutting roller of the coal mining machine and the tail of the scraper reversed loader for the crossheading is avoided, and the purpose of being suitable for an advancing type coal mining mode is achieved.

Description

Technical fields: This invention relates to the field of mining and conveying technology in fully mechanized coal mining faces, specifically to a cross-side unloading headframe for a scraper conveyor suitable for forward-moving coal mining. Background Technology

[0001] As one of the main pieces of equipment in fully mechanized coal mining systems, scraper conveyors are currently used in the mainstream coal mining method in China: retreating coal mining. This involves first excavating two roadways connecting the coal face to the face and installing the equipment. The coal mining machine's cutting drum moves on the opposite side of the tail of the scraper conveyor in the roadway, without interference between them. Advancing coal mining, on the other hand, does not require prior excavation of the roadways. After the cut is made, the coal mining machine directly advances. In this scenario, the coal mining machine's cutting drum moves on the same side as the tail of the scraper conveyor in the roadway. If a traditional cross-side unloading headframe is still used, the coal mining machine's cutting drum will interfere with the tail of the scraper conveyor in the roadway. Summary of the Invention

[0002] The purpose of this invention is to provide a cross-side unloading head frame for a scraper conveyor suitable for forward coal mining, which is applicable to the working conditions of forward coal mining.

[0003] The objective of this invention is achieved through the following technical solution: A cross-side unloading head frame for a scraper conveyor suitable for forward coal mining, its main structure consists of a pressure block I1, a head frame 2, a sprocket assembly I3, a tongue plate assembly I4, a chain derailer I5, a movable center plate assembly 6, a tongue plate assembly II7, a chain derailer II8, a sprocket assembly II9, a pressure block II10, a blocking plate 11, a bolt 12, an anti-loosening washer 13, and a pin nut 14; The main structure of the cross-side unloading head frame of this scraper conveyor suitable for forward coal mining is the head frame 2, which is designed with four layers of chain track space. The top and bottom layers are the chain track space through which the scraper chain of the scraper conveyor passes, and the middle two layers are the chain track space through which the scraper chain of the scraper transfer machine used in the roadway passes.

[0004] Furthermore, the head frame 2 integrates the tongue plate assembly II7, chain derailleur II8, and sprocket assembly II9 into its interior, secured by pressure block II10, bolts 12, anti-loosening washers 13, and pin nuts 14. This design prevents the sprocket assembly II9 from protruding from the head frame 2, providing space for the coal mining machine's cutting drum and avoiding interference, thus achieving suitability for forward-moving coal mining methods.

[0005] The beneficial effects of this invention are mainly reflected in the following: By embedding key structures such as the sprocket assembly II9 into the headstock 2, making its outline compact and without protruding parts, this invention fundamentally solves the core problem of interference between the cutting drum of the coal mining machine and the head of the conveyor and the tail of the scraper transfer machine in the roadway during forward mining. This design ensures continuous advancement of the working face and significantly improves the safety and efficiency of the forward mining process.

[0006] The substantial features and significant advancements of this device lie in its innovative integration of sprocket assembly II9, chain derailleur II8, and other components within the headframe 2, reliably secured by components such as pressure blocks 10, thus achieving a compact and flattened headframe structure. The integrated design of a four-layer chain track space simultaneously accommodates the functions of the face scraper conveyor and the roadway transfer conveyor within a limited space, optimizing equipment matching and roadway space utilization. It directly addresses and successfully resolves the technical bottleneck of equipment interference in forward mining processes, providing reliable dedicated core equipment for safe, efficient, and continuous forward mining, and broadening the application prospects of this technology. Attached Figure Description

[0007] The accompanying drawings, which constitute the basis of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention. In the drawings: Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a general schematic diagram showing the installation position of the scraper chain of the scraper conveyor and the scraper chain of the scraper transfer machine for the chute according to the present invention; Figure 3 This is a cross-sectional view (AA) of the present invention; Figure 4 This is a partial sectional view of the side view of the present invention; Figure 5 This is a side view of the installation position of the scraper chain of the scraper conveyor and the scraper transfer machine for the chute of the present invention. In the diagram: 1. Pressure block I, 2. Head frame, 3. Sprocket assembly I, 4. Tongue plate assembly I, 5. Chain derailer I, 6. Movable center plate assembly, 7. Tongue plate assembly II, 8. Chain derailer II, 9. Sprocket assembly II, 10. Pressure block II, 11. Blocking plate, 12. Bolt, 13. Anti-loosening washer, 14. Pin nut (13), 15. Scraper chain of scraper conveyor, 16. Scraper chain of scraper transfer machine for roadway Detailed Implementation

[0008] The technical solutions of the present invention will be described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all of them.

[0009] The method of using this invention is as follows: First, the head frame 2 is positioned and installed at a predetermined location on the coal mining face, ensuring its foundation is stable. The chain puller II8 is fixed to the inside of the sprocket assembly II9 installation position with bolts. Then, the sprocket assembly II9 is ​​pushed into the pre-reserved semi-circular groove inside the head frame 2 from the side. The pressure block II10 is pushed in through the side plate sliding groove structure, pressing against the sprocket assembly II9. Then, it is firmly fixed to the head frame 2 body with bolts 12, anti-loosening washers 13, and pin nuts 14. Finally, the tongue plate assembly II7 is installed, thereby completely installing and protecting the sprocket assembly II9 and other structures inside the head frame. These components together constitute the drive and guide mechanism of the scraper chain 16 of the roadway scraper transfer machine. On the other side of the head frame 2, sprocket assembly I3 is installed, along with its matching tongue plate assembly I4 and chain derailleur I5. This part serves as the drive mechanism for the scraper chain 15 of the working face scraper conveyor. A movable center plate assembly 6 is installed on the upper part of the head frame 2, allowing it to move flexibly according to coal flow conditions to assist in coal unloading. Finally, a blocking plate 11 is used to seal the side of the head frame 2, specifically the rear of sprocket assembly II9, forming a complete and robust working unit.

[0010] It should be understood that the above detailed description of the technical solutions of the present invention with reference to preferred embodiments is illustrative and not restrictive. Those skilled in the art can modify the technical solutions described in the embodiments or make equivalent substitutions for some of the technical features based on reading this specification, and such modifications or substitutions do not cause the essence of the corresponding technical solutions to depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A cross-side unloading head frame for a scraper conveyor suitable for forward coal mining, the main structure of which consists of a pressure block I (1), a head frame (2), a sprocket assembly I (3), a tongue plate assembly I (4), a chain derailer I (5), a movable middle plate assembly (6), a tongue plate assembly II (7), a chain derailer II (8), a sprocket assembly II (9), a pressure block II (10), a blocking plate (11), bolts (12), anti-loosening washers (13), and pin nuts (14); the main structure of this cross-side unloading head frame for a scraper conveyor suitable for forward coal mining is the head frame (2), which is designed with four layers of chain track space. The uppermost and lowermost layers are the chain track space through which the scraper chain of the scraper conveyor passes, and the middle two layers are the chain track space through which the scraper chain of the scraper transfer machine in the roadway passes. The tongue plate assembly II (7), chain derailleur II (8), and sprocket assembly II (9) are designed inside the head frame (2) and fixed by pressure block II (10), bolts (12), anti-loosening washers (13), and pin nuts (14). This design ensures that the sprocket assembly II (9) and scraper chain do not protrude from the head frame (2), leaving space for the coal mining machine cutting drum to travel, avoiding interference with the coal mining machine cutting drum, and achieving the purpose of being suitable for forward coal mining.

Images