Three-machine matching installation structure for coal face of ultra-thin coal seam

Abstract

The utility model discloses a three-machine matching installation structure for a coal face of an ultra-thin coal seam, and belongs to the technical field of fully mechanized coal faces. The three-machine matching installation structure comprises a coal mining machine, a scraper conveyor and a hydraulic support, a shovel plate ledge and a baffle ledge are arranged on the two sides of the scraper conveyor respectively, and a traction mechanism of the coal mining machine is arranged on a toothed rail on the shovel plate ledge side of the scraper conveyor. The hydraulic support is connected with the scraper conveyor through a pin shaft at the position of a connecting lug on the baffle ledge side of the scraper conveyor. The coal mining machine adapts to the working face of the ultra-thin coal seam by changing the meshing relation of the coal mining machine and the scraper conveyor. In the production process, aiming at the change of the coal seam thickness of a working face, the device can adapt to the ultrathin coal seam to realize comprehensive mechanical coal mining. The number of workers on the working face is reduced, and the safety coefficient of the ultrathin coal seam working face is greatly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of fully mechanized mining working faces, in particular to a three-machine matching installation structure for an extremely thin coal seam coal mining working face. Background Art

[0002] The country's requirements for coal mine safety are constantly increasing, and each coal mine needs to achieve underground mechanized coal mining. For the working face of extremely thin coal seams, it is necessary to change the overall height of the three-machine matching to achieve comprehensive mechanized coal mining in extremely thin coal seams. At this time, it is necessary to lower the machine face height after the scraper conveyor and the coal mining machine are matched, and match it with the hydraulic support to ensure that the coal mining machine can pass smoothly under the hydraulic support under a lower mining height.

[0003] In order to solve this problem, the current common practice in the industry is to use thin coal seam coal mining machines in conjunction with thin coal seam scrapers.

[0004] But this has two problems:

[0005] 1. The form of coal mining machine for thin coal seams: No matter it is a straight-mounted thin coal seam coal mining machine or an inverted thin coal seam coal mining machine, both are placed across the scraper conveyor. The machine surface height after the two machines are matched is always the coal mining machine plus the scraper conveyor, which cannot meet the matching requirements of extremely thin coal seams.

[0006] Second, because the coal mining machine straddles the scraper conveyor, the coal always passes under the coal mining machine body. In order to ensure a large enough space for coal transportation, the height of the machine surface after the two machines are matched is relatively high, which cannot meet the matching requirements of extremely thin coal seams. Summary of the invention

[0007] The technical problem to be solved by the utility model is: how to realize comprehensive mechanized coal mining in extremely thin coal seams.

[0008] In order to achieve the above technical objectives, the utility model adopts the following technical solutions:

[0009] A three-machine matching installation structure for an extremely thin coal seam coal mining face includes a coal mining machine, a scraper conveyor, and a hydraulic support, wherein a shovel plate groove side and a baffle plate groove side are respectively provided on both sides of the scraper conveyor, the traction mechanism of the coal mining machine is placed on the shovel plate groove side of the scraper conveyor, and the hydraulic support is connected to the scraper conveyor on the baffle plate groove side of the scraper conveyor.

[0010] As a preferred method, the traction mechanism of the coal mining machine is placed on the rack rail on the side of the shovel groove of the scraper conveyor (riding on the rack rail). This greatly reduces the machine surface height after the coal mining machine and the scraper conveyor are matched. After matching with the hydraulic support, it can well meet the use requirements of the fully mechanized mining working face of the extremely thin coal seam.

[0011] Preferably, the hydraulic support is connected to the scraper conveyor by a pin at the connecting ear on the side of the baffle groove of the scraper conveyor.

[0012] The utility model discloses a three-machine matching installation structure for an extremely thin coal seam coal mining working face. The technical solution adapts to the extremely thin coal seam working face by changing the meshing relationship between the coal mining machine and the scraper conveyor. In the production process, according to the change of the thickness of the working face coal seam, the utility model can adapt to the extremely thin coal seam to realize comprehensive mechanized coal mining. In addition, the number of workers on the working face is reduced, and the safety factor of the extremely thin coal seam working face is greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a cross-sectional diagram of a coal mining machine and a scraper conveyor.

[0014] Figure 2 It is a cross-sectional diagram of a coal mining machine, a scraper conveyor and a hydraulic support.

[0015] In the figure:

[0016] 1. Coal mining machine 2. Scraper conveyor 3. Hydraulic support 21. Shovel board groove

[0017] 22. Baffle groove. DETAILED DESCRIPTION

[0018] The specific implementation methods of the present invention will be described in detail below. In order to avoid too many unnecessary details, the well-known structures or functions will not be described in detail in the following examples. The approximate language used in the following examples can be used for quantitative expression, indicating that the quantity can be allowed to change without changing the basic function. Unless otherwise defined, the technical and scientific terms used in the following examples have the same meanings as those generally understood by technicians in the field to which the present invention belongs.

[0019] Example 1

[0020] A three-machine matching installation structure for an extremely thin coal seam mining face, such as Figure 1 , Figure 2 As shown, it includes a coal mining machine 1, a scraper conveyor 2, and a hydraulic support 3, wherein a shovel plate groove 21 and a baffle plate groove 22 are respectively provided on both sides of the scraper conveyor 2, the traction mechanism of the coal mining machine 1 is placed on the shovel plate groove 21 side of the scraper conveyor 2, and the hydraulic support 3 is connected to the scraper conveyor 2 on the baffle plate groove 22 side of the scraper conveyor 2.

[0021] Example 2

[0022] A three-machine matching installation structure for an extremely thin coal seam mining face, such as Figure 1 , Figure 2As shown, it includes a coal mining machine 1, a scraper conveyor 2, and a hydraulic support 3, wherein a shovel plate groove 21 and a baffle plate groove 22 are respectively provided on both sides of the scraper conveyor 2, the traction mechanism of the coal mining machine 1 is placed on the shovel plate groove 21 side of the scraper conveyor 2, and the hydraulic support 3 is connected to the scraper conveyor 2 on the baffle plate groove 22 side of the scraper conveyor 2. The traction mechanism of the coal mining machine 1 is placed on the rack rail on the shovel plate groove 21 side of the scraper conveyor 2. The hydraulic support 3 and the scraper conveyor 2 are connected at the connection ear on the baffle plate groove 22 side of the scraper conveyor 2 by a pin shaft.

[0023] The embodiments of the present invention are described in detail above, but the contents are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the scope of application of the present invention shall be included in the protection scope of the present invention.

Claims

1. A three-machine matching installation structure for an extremely thin coal seam mining face. It is characterized in that The invention comprises a coal mining machine (1), a scraper conveyor (2), and a hydraulic support (3), wherein a shovel plate groove (21) and a baffle plate groove (22) are respectively arranged on both sides of the scraper conveyor (2), a traction mechanism of the coal mining machine (1) is arranged on the shovel plate groove (21) side of the scraper conveyor (2), and the hydraulic support (3) is connected to the scraper conveyor (2) on the baffle plate groove (22) side of the scraper conveyor (2).

2. The three-machine matching installation structure for an ultra-thin coal seam mining face according to claim 1, It is characterized in that The traction mechanism of the coal mining machine (1) is placed on the rack rail on the side of the shovel plate groove (21) of the scraper conveyor (2).

3. The three-machine matching installation structure for an ultra-thin coal seam mining face according to claim 1, It is characterized in that The hydraulic support (3) and the scraper conveyor (2) are connected by a pin at a connecting ear on the side of the baffle groove (22) of the scraper conveyor (2).

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