Coal ore crushing device

Abstract

The utility model relates to the technical field of mining equipment, in particular to a coal mine crushing device which comprises an underground hopper, a crushing channel is fixedly connected to a lower opening of the underground hopper, a rolling structure is rotatably mounted in the crushing channel, the crushing channel comprises a conical channel, and a discharging channel is fixedly mounted at a lower opening of the conical channel. And the grinding structure comprises a conical grinding column, the lower end of the conical grinding column is fixedly connected with a center shaft at one end of an eccentric connecting shaft, and the center shaft at the other end of the eccentric connecting shaft is fixedly connected with a driving shaft. According to the utility model, the lower end of the conical grinding column is deviated by the eccentric connecting shaft, so that the conical grinding column forms an eccentric shaft-like structure, and when the conical grinding column rotates, the active impact on coal mine stones can be realized through the continuously changed gap between the crushing barrel waist and the lower end of the conical grinding column, and the crushing effect and efficiency are greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mining equipment, in particular to a coal ore crushing device. Background Art

[0002] Ore is a mineral aggregate mined from an ore body, from which useful component elements, compounds or minerals can be extracted. Ore is formed in various geological mineralization processes, and ores formed by different geological mineralization processes have different characteristics. Coal ore refers to an ore whose main component is coal. After coal ore is mined, it often needs to be crushed by a crushing device before it can be processed.

[0003] Some of the current coal mine crushing devices are designed as funnel-shaped structures, with conical rolling rollers at the leaking mouth. The coal is ground by rotating rollers. However, some coal ores contain other elements besides coal, such as hematite, siderite and other coal-related minerals. The ore is relatively hard, and there is room for improvement in crushing efficiency by relying solely on grinding. Utility Model Content

[0004] The purpose of the utility model is to provide a coal ore crushing device to solve the problems raised in the above background technology.

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

[0006] A coal ore crushing device comprises an underground hopper, a lower opening of the buried hopper is fixedly connected to a crushing channel, a crushing structure is rotatably installed inside the crushing channel, the crushing channel comprises a conical channel, a discharge channel is fixedly installed at the lower opening of the conical channel, a crushing barrel waist is provided at the connection between the conical channel and the discharge channel, the crushing structure comprises a conical crushing column, the conical crushing column, the lower end of the conical crushing column is fixedly connected to the central axis of one end of an eccentric connecting shaft, and the central axis of the other end of the eccentric connecting shaft is fixedly connected to a drive shaft.

[0007] Furthermore, the buried hopper includes a hopper body, a hopper edge is fixedly installed on the outer edge of the upper opening of the hopper body, a No. 1 support rod is fixedly installed on the inner wall of the lower opening of the hopper body, the upper surface of the No. 1 support rod is a rounded structure, and a ball joint sleeve is fixedly installed in the middle of the No. 1 support rod.

[0008] Furthermore, a reinforcing sleeve is fixedly sleeved on the outer surface of the grinding cylinder waist.

[0009] Furthermore, the lower surface of the conical rolling column is an inverted cone structure, the side surface of the conical rolling column is annular and has six rolling edges fixedly installed at equal angles, and the upper end of the conical rolling column is fixedly installed with a ball joint plug.

[0010] Furthermore, the drive shaft is inserted and rotatably installed inside the shaft seat, the side surface of the shaft seat is annular and fixedly connected with three No. 2 support rods at equal angles, the upper surfaces of the three No. 2 support rods are rounded structures, and the middle part of the drive shaft is fixedly sleeved with one end of the synchronous wheel chain group.

[0011] Furthermore, the upper opening of the conical channel and the lower opening of the hopper body are fixedly connected to each other.

[0012] Furthermore, the ball joint plug is movably connected with the ball joint sleeve, the No. 2 support rod is fixedly connected to the inner wall of the discharge channel, and one end of the synchronous wheel chain group passes through the shaft seat, the discharge channel and the reinforcement sleeve and is fixedly connected to the output end of the power structure.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. Install the whole device on the ground, and guide the dumped coal ore to be crushed into the conical channel through the buried hopper. At the same time, the big end of the bottom of the conical rolling column limits the actual size of the lower opening of the conical channel, that is, the waist of the crushing tube, thereby limiting the size of the coal ore blocks that can pass through the waist of the crushing tube. At the same time, the eccentric connecting shaft offsets the lower end of the conical rolling column, so that the conical rolling column constitutes a quasi-eccentric shaft structure. When the conical rolling column rotates, the offset lower end of the conical rolling column cooperates with the waist of the crushing tube to crush the coal ore, so that the coal ore can be crushed in fine through the waist of the crushing tube. Through the constantly changing gap between the waist of the crushing tube and the lower end of the conical rolling column, the coal ore can be actively impacted, greatly improving the crushing effect and efficiency.

[0015] 2. The ball joint plug and the ball joint sleeve are connected to each other to provide multi-angle rotation support for the upper end of the conical rolling column, providing a structural basis for the conical rolling column to rotate in an inclined state, and effectively reducing the damage to the shaft end connection caused by the conical rolling column with an eccentric shaft structure during rotation. At the same time, the upper surfaces of the No. 1 and No. 2 support rods, which serve as the main supporting structures at the upper and lower ends of the conical rolling column, are designed with rounded corners to improve the impact resistance while preventing coal ore from staying on the upper surface of the support rods. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a sectional view of the overall structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the buried hopper in the utility model;

[0019] Figure 4 This is a schematic diagram of the crushing channel in the utility model;

[0020] Figure 5 It is a schematic diagram of the rolling structure in the utility model.

[0021] In the figure: 1. buried hopper; 101. hopper body; 102. hopper edge; 103. No. 1 support rod; 104. ball joint sleeve; 2. crushing channel; 201. conical channel; 202. discharge channel; 203. crushing cylinder waist; 204. reinforcement cylinder sleeve; 3. rolling structure; 301. conical rolling column; 302. rolling edge; 303. ball joint plug; 304. eccentric connecting shaft; 305. driving shaft; 306. shaft seat; 307. No. 2 support rod; 308. synchronous wheel chain set. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figures 1 to 5 In an embodiment of the utility model, a coal ore crushing device comprises an underground hopper 1, a lower opening of the underground hopper 1 is fixedly connected with a crushing channel 2, a rolling structure 3 is rotatably installed inside the crushing channel 2, the crushing channel 2 comprises a conical channel 201, a discharge channel 202 is fixedly installed at the lower opening of the conical channel 201, a crushing cylinder waist 203 is provided at the connection between the conical channel 201 and the discharge channel 202, the rolling structure 3 comprises a conical rolling column 301, the conical rolling column 301, the lower end of the conical rolling column 301 is fixedly connected to the central axis of one end of an eccentric connecting shaft 304, and the central axis of the other end of the eccentric connecting shaft 304 is fixedly connected with a driving shaft 305; the lower surface of the conical rolling column 301 is an inverted cone structure, and the side surface of the conical rolling column 301 is annular and fixedly installed with six rolling edges 302 at equal angles.

[0024] Specifically, the overall device is installed in the ground, and the coal ore that needs to be crushed is poured into the conical channel 201 through the buried hopper 1. At the same time, the actual size of the lower opening of the conical channel 201, that is, the crushing tube waist 203, is limited by the big end of the bottom of the conical rolling column 301, thereby limiting the size of the coal ore blocks that can pass through the crushing tube waist 203. At the same time, the lower end position of the conical rolling column 301 is offset by the eccentric connecting shaft 304, so that the conical rolling column 301 constitutes a quasi-eccentric shaft structure. When the conical rolling column 301 rotates, the offset lower end of the conical rolling column 301 cooperates with the crushing tube waist 203 to crush the coal ore, so that the coal ore can be crushed in fine through the crushing tube waist 203. Through the constantly changing gap between the crushing tube waist 203 and the lower end of the conical rolling column 301, the coal ore can be actively impacted, greatly improving the crushing effect and efficiency. Embodiment 1

[0025] like Figure 1-4 As shown, in this embodiment, the buried hopper 1 includes a hopper body 101, and a hopper edge 102 is fixedly installed on the outer edge of the upper opening of the hopper body 101; the upper opening of the conical channel 201 and the lower opening of the hopper body 101 are fixedly connected to each other.

[0026] In this embodiment, the dumped coal ore is guided into the conical channel 201 by the hopper body 101 , and the hopper edge 102 increases the actual height of the opening on the hopper body 101 , thereby reducing the probability of soil on the ground accidentally entering the hopper body 101 .

[0027] like Figure 2 , 4 As shown, in this embodiment, a reinforcement sleeve 204 is fixedly sleeved on the outer surface of the grinding cylinder waist 203 .

[0028] In specific implementation, when the conical crushing column 301 crushes the coal ore, the reinforcing sleeve 204 relies on the support provided by the inclined surface on the outer side of the conical channel 201 and the discharge channel 202 to reinforce the crushing barrel waist 203, thereby improving the crushing barrel waist 203's ability to withstand extrusion and impact. Embodiment 2

[0029] On the basis of the first embodiment, in order to compensate for the tilted state of the conical rolling column 301 rotating in the first embodiment, a specific tilted state support structure is provided at the upper end of the conical rolling column 301.

[0030] like Figure 2As shown, in the present embodiment, a No. 1 support rod 103 is fixedly installed at the inner wall of the lower opening of the hopper body 101, the upper surface of the No. 1 support rod 103 is a rounded structure, and a ball joint sleeve 104 is fixedly installed in the middle of the No. 1 support rod 103; a ball joint plug 303 is fixedly installed on the upper end of the conical rolling column 301; the drive shaft 305 is inserted and rotatably installed inside the shaft seat 306, and the side surface of the shaft seat 306 is annular and fixedly connected with three No. 2 support rods 307 at equal angles, the upper surfaces of the three No. 2 support rods 307 are rounded structures, and the middle part of the drive shaft 305 is fixedly sleeved with one end of the synchronous wheel chain group 308; the ball joint plug 303 is movably sleeved with the ball joint sleeve 104, the No. 2 support rod 307 and the inner wall of the discharge channel 202 are fixedly connected to each other, and one end of the synchronous wheel chain group 308 passes through the shaft seat 306, the discharge channel 202 and the reinforcement sleeve 204 and is fixedly connected to the output end of the power structure.

[0031] During specific implementation, the ball joint plug 303 and the ball joint sleeve 104 are mutually socketed to provide multi-angle rotation support for the upper end of the conical rolling column 301, and provide a structural basis for the conical rolling column 301 to rotate in a tilted state. At the same time, the conical rolling column 301 with an eccentric shaft structure can effectively reduce the damage to the shaft end connection during rotation. At the same time, the upper surfaces of the No. 1 support rod 103 and the No. 2 support rod 307, which serve as the main supporting structures at the upper and lower ends of the conical rolling column 301, are designed to be rounded structures, which improve the impact resistance while preventing coal ore from staying on the upper surface of the support rod.

[0032] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0033] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A coal ore crushing device, comprising an underground hopper (1), characterized in that: The lower opening of the buried hopper (1) is fixedly connected to a crushing channel (2), a crushing structure (3) is rotatably installed inside the crushing channel (2), the crushing channel (2) comprises a conical channel (201), a discharge channel (202) is fixedly installed at the lower opening of the conical channel (201), a crushing tube waist (203) is provided at the connection between the conical channel (201) and the discharge channel (202), and the crushing structure (3) comprises a conical crushing column (301), the lower end of the conical crushing column (301) is fixedly connected to the central axis of one end of an eccentric connecting shaft (304), and the central axis of the other end of the eccentric connecting shaft (304) is fixedly connected to a driving shaft (305).

2. A coal ore crushing device according to claim 1, characterized in that: The buried hopper (1) comprises a hopper body (101), a hopper edge (102) is fixedly mounted on the outer edge of the upper opening of the hopper body (101), a No. 1 support rod (103) is fixedly mounted on the inner wall of the lower opening of the hopper body (101), the upper surface of the No. 1 support rod (103) is a rounded structure, and a ball joint sleeve (104) is fixedly mounted in the middle of the No. 1 support rod (103).

3. A coal ore crushing device according to claim 2, characterized in that: A reinforcing cylinder sleeve (204) is fixedly sleeved on the outer surface of the grinding cylinder waist (203).

4. A coal ore crushing device according to claim 3, characterized in that: The lower surface of the conical rolling column (301) is an inverted cone-shaped structure, the side surface of the conical rolling column (301) is annularly provided with six rolling edges (302) fixedly mounted at equal angles, and the upper end of the conical rolling column (301) is fixedly provided with a ball joint plug (303).

5. A coal ore crushing device according to claim 4, characterized in that: The drive shaft (305) is inserted and rotatably installed inside the shaft seat (306); the side surface of the shaft seat (306) is annular and fixedly connected with three No. 2 support rods (307) at equal angles; the upper surfaces of the three No. 2 support rods (307) are rounded structures; the middle part of the drive shaft (305) is fixedly sleeved with one end of the synchronous wheel chain group (308).

6. A coal ore crushing device according to claim 5, characterized in that: The upper opening of the conical channel (201) and the lower opening of the hopper body (101) are fixedly connected to each other.

7. A coal ore crushing device according to claim 6, characterized in that: The ball joint plug (303) is movably sleeved with the ball joint sleeve (104), the second support rod (307) is fixedly connected to the inner wall of the discharge channel (202), and one end of the synchronous wheel chain group (308) passes through the shaft seat (306), the discharge channel (202) and the reinforcement sleeve (204) and is fixedly connected to the output end of the power structure.

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