Cone drum of thin coal seam mining machine

Abstract

The utility model relates to a conical drum of a thin coal seam coal mining machine, comprising: a conical connecting drum connected to an output shaft of the coal mining machine, a drum ring welded to a narrow end of the conical connecting drum, spiral blades and end plates fixedly connected to the outer circumference of the drum ring, and auxiliary blades installed on the edge of the spiral blades, drum tooth seats are installed on the outer circumference of the end plate and the edge of the spiral blades, picks are installed on the drum tooth seats, the end plates and spiral blades are used to break coal and crush it by the picks, and the spiral blades and auxiliary blades are used to transport the crushed coal to a scraper conveyor; the utility model has the advantages that the conical drum of the coal mining machine breaks the conventional cylindrical drum drum ring and is designed as a conical drum ring, the diameter is reduced, the depth of the spiral blades is increased, the coal holding space of the drum is increased, and the coal collection effect is optimized.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mining machines, in particular to a cone roller of a thin coal seam coal mining machine. Background Art

[0002] The spiral drum of the coal mining machine is the working mechanism of the coal mining machine for dropping and loading coal. The broken coal is cut off from the coal wall by the spiral blades in the drum, and the spiral blades rotate the coal along the axis direction of the drum and transport it to the scraper conveyor for transportation.

[0003] With the application and promotion of high-power thin coal seam mining machines, the machine face height is further compressed, and the drum diameter is correspondingly reduced. The conventional drum structure is to weld spiral blades on the cylindrical drum ring. In order to meet the mining needs of high-power thin coal seams, the drum ring diameter needs to meet the high-power requirements. Due to the reduction in drum diameter, the blades are greatly reduced, the coal collection rate is reduced, and the coal collection requirements cannot be met. Utility Model Content

[0004] In view of the above problems, the purpose of the utility model is to provide a cone drum of a thin coal seam coal mining machine, which is used to improve the coal mining efficiency and overcome the shortcomings of the above-mentioned prior art.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A conical drum of a thin coal seam coal mining machine comprises: a conical connecting drum connected to the output shaft of the coal mining machine, a drum ring welded to the narrow end of the conical connecting drum, a spiral blade and an end plate fixedly connected to the outer circumference of the drum ring, and an auxiliary blade installed on the edge of the spiral blade, a drum tooth seat is installed on the outer circumference of the end plate and the edge of the spiral blade, a pick is installed on the drum tooth seat, the end plate and the spiral blade are used to break and crush coal by the pick, and the spiral blade and the auxiliary blade are used to transport the crushed coal to a scraper conveyor.

[0007] As a preferred embodiment of the present invention, the diameter of the tube ring is the same as the diameter of the narrow end of the tapered connecting tube.

[0008] As a preferred embodiment of the present invention, the end plate is installed at an end of the cylinder ring away from the tapered connecting cylinder.

[0009] As a preferred embodiment of the present invention, the conical connecting cylinder is connected to the output shaft of the coal mining machine via a spline.

[0010] The advantages and positive effects of the utility model are:

[0011] 1. The utility model of the coal mining machine cone drum breaks the conventional cylindrical drum ring and is designed as a conical drum ring, which reduces the diameter, increases the depth of the spiral blades, increases the coal storage space of the drum, and optimizes the coal collection effect.

[0012] 2. The utility model improves the conventional integral cylindrical drum ring into a tapered connecting drum and a drum ring welded in sections. The connecting drum is tapered, and the drum ring diameter is reduced by 94mm through the taper of the connecting drum. The depth of the spiral blade is increased for the same diameter drum. The spiral blades welded by the drum are cut according to the shape of the drum ring. The drum tooth seat pick teeth are strong pick-shaped pick teeth and tooth seats. The coal breaking capacity is greatly enhanced. It can mine coal seams with f≤5 and local gangue f=6~7.

[0013] 3. The cone drum of the coal mining machine of the utility model solves the problem of coal collection of the large-power coal mining machine drum in thin coal seams. It can complete coal cutting and loading under extreme geological conditions, thin coal seams and high coal hardness, which is of great significance for the mining of thin coal seams. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a sectional view of the overall structure of the utility model.

[0015] Figure 2 It is a schematic diagram of the connection between the conical connecting cylinder and the cylinder ring in the utility model.

[0016] Figure 3 The utility model is a schematic diagram of the installation of the drum tooth seat and the cutting tooth.

[0017] Reference numerals: conical connecting cylinder 1, cylinder ring 2, spiral blade 3, end plate 4, auxiliary blade 5, drum tooth seat 6, cutting tooth 7, screw plug 8. DETAILED DESCRIPTION

[0018] In the following description, for the purpose of illustration, in order to provide a comprehensive understanding of one or more embodiments, many specific details are set forth. However, it is apparent that these embodiments may also be implemented without these specific details. In other examples, for ease of describing one or more embodiments, known structures and devices are shown in the form of block diagrams.

[0019] See also Figure 1-3 The present embodiment provides a conical drum of a thin coal seam coal mining machine, comprising: a conical connecting drum 1 connected to the output shaft of the coal mining machine, a drum ring 2 welded to the narrow end of the conical connecting drum 1, a spiral blade 3 and an end plate 4 fixedly connected to the outer circumference of the drum ring 2, and an auxiliary blade 5 installed on the edge of the spiral blade 3, a plurality of drum tooth seats 6 are installed on the outer circumference of the end plate 4 and the edge of the spiral blade 3, a strong pick-shaped cutting tooth 7 is installed on the drum tooth seat 6, the end plate 4 and the spiral blade 3 are crushed by the cutting tooth 7, and the spiral blade 3 and the auxiliary blade 5 are used to transport the crushed coal to the scraper conveyor.

[0020] The diameter of the tube ring 2 in this embodiment is the same as the diameter of the narrow end of the tapered connecting tube 1. The end plate 4 is installed at the end of the tube ring 2 away from the tapered connecting tube 1. A screw plug 8 is provided on the side of the tube ring 2 close to the end plate 4.

[0021] The conical connecting tube 1 in this embodiment is connected to the output shaft of the coal mining machine through a spline.

[0022] In this embodiment, the conical connecting cylinder 1 and the cylinder ring 2 are designed to be conical, the space of the cylinder ring 2 is compressed, the blade depth is increased, and the coal holding space of the drum 2 is increased, so that the cut coal is squeezed along the cylinder ring 2 by the spiral blades 3 and transported to the conveyor. The coal collecting effect of the drum with the same diameter is greatly improved compared with the ordinary drum, and the coal loading rate can reach more than 70%.

[0023] Working principle: The cone drum of the coal mining machine changes the conventional cylindrical design. The cone connecting tube 1 is designed to be conical with a diameter of 94mm reduced from the output shaft end cover to increase the blade depth. The cylinder ring 2 and the cone connecting tube 1 are welded in two sections and processed after welding to ensure the strength and reliability of the spline connection with the output shaft.

[0024] The above are only specific implementations of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A cone drum for a thin coal seam shearer, characterized in that: include: A conical connecting cylinder connected to the output shaft of the coal mining machine, a cylinder ring welded to the narrow end of the conical connecting cylinder, a spiral blade and an end plate fixed to the outer circumference of the cylinder ring, and an auxiliary blade installed on the edge of the spiral blade. A roller tooth seat is installed on the outer circumference of the end plate and the edge of the spiral blade. A pick is installed on the roller tooth seat. The end plate and the spiral blade are used to break the coal into powder by the pick. The spiral blade and the auxiliary blade are used to transport the crushed coal to the scraper conveyor.

2. The thin coal seam shearer cone drum according to claim 1, characterized in that: The diameter of the tube ring is the same as the diameter of the narrow end of the tapered connecting tube.

3. The thin coal seam coal mining machine cone drum according to claim 1, characterized in that: The end plate is mounted on an end of the cylinder ring away from the conical connecting cylinder.

4. The thin coal seam shearer cone drum according to claim 1, characterized in that: The conical connecting cylinder is connected to the output shaft of the coal mining machine through a spline.

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