Ore crushing device for underground mining

Abstract

The ore crushing device for underground mining comprises a bottom plate, a plurality of side plates and a plurality of first supporting columns, the side plates are symmetrically installed on one side of the top of the bottom plate, and the first supporting columns are symmetrically installed on the other side of the top of the bottom plate; a fixed block is fixedly installed on one side of the top of the bottom plate, an electric push rod is arranged on the side, close to the side plates, of the fixed block, a push plate is installed at the end, away from the fixed block, of the electric push rod, the push plate is located between the side plates, and a baffle is arranged on the top of the fixed block and connected with the push plate; an electric push rod, a push plate, a fixed block and a T-shaped sliding block are arranged, the push plate drives the T-shaped sliding block to move at the top of the fixed block, a baffle is controlled to move to the bottom of the mounting frame to shield broken stones, the broken stones are crushed, and the broken stones are crushed. And the broken stones on the surfaces of the crushing rollers are prevented from falling on the surfaces of the electric push rods to damage the electric push rods when the broken stones on the top of the bottom plate are cleaned.

Description

Technical Field

[0001] The present invention relates to the technical field of ore crushing, and particularly to an ore crushing device for underground mining. Background Art

[0002] After being mined from the mine, ores often have a large volume, which poses challenges for subsequent handling and transportation. To solve this problem, a crushing device is usually required to crush large ores into smaller particles for subsequent handling and processing.

[0003] However, there is a common problem with existing ore crushing devices after crushing large ores for a period of time, that is, crushed stones accumulate at the bottom of the crushing rollers. And this accumulation gradually builds up until it reaches the point of contacting the crushing rollers, thus affecting the crushing effect and the normal operation of the equipment. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the defect that crushed stones accumulate at the bottom of the crushing rollers in the prior art until it affects the crushing effect and the normal operation of the equipment, and to provide an ore crushing device for underground mining.

[0005] The technical solution adopted by the present invention to solve its technical problem is an ore crushing device for underground mining, including a bottom plate, a plurality of side plates and a plurality of first support columns. The side plates are symmetrically installed on one side of the top of the bottom plate, and the first support columns are symmetrically installed on the other side of the top of the bottom plate; A fixing block is fixedly installed on one side of the top of the bottom plate. An electric push rod is arranged on the side of the fixing block close to the side plate, and a push plate is installed at the end of the push rod away from the fixing block. The push plate is located between the side plates, and a baffle is arranged on the top of the fixing block and connected to the push plate; An installation frame is fixedly installed on the top of the side plate, and a plurality of crushing rollers for crushing ores are arranged in the installation frame.

[0006] Further, the fixing block has a T-shaped groove, and a T-shaped slider is slidably connected in the T-shaped groove, and the T-shaped slider is fixed at the center of the bottom of the baffle.

[0007] Further, a plurality of rollers are symmetrically installed on both sides of the T-shaped slider, and the rollers roll on the bottom surface of the T-shaped groove.

[0008] Further, three groups of crushing rollers are provided, and one end of the crushing roller passes through the installation frame and coaxially rotates with a gear. A rotating motor coaxially rotates on one side of the middle gear among the three groups of gears.

[0009] Furthermore, a chassis is fixedly installed on one side of the mounting frame. The bottom of the first support column is connected to the bottom plate, and the top is connected to the chassis. The rotating motor is installed on one side close to the mounting frame.

[0010] Furthermore, a chute is provided at the top of the chassis. A protective plate is arranged on one side of the chute close to the rotating motor at the top of the chassis. A collection box is slidably installed in the chute. Second support columns are symmetrically installed on one side of the top of the chassis far from the mounting frame.

[0011] Furthermore, a guiding frame is installed at the top of the mounting frame. The top of the protective plate and the second support columns are fixedly installed with a top frame. A plurality of mounting shafts are installed in the top frame, and rollers are rotatably connected to the outer peripheral surface of the mounting shafts.

[0012] Furthermore, one side of the guiding frame close to the top frame is inclined. A protective frame is fixedly installed at the top of the guiding frame, and a protective curtain is rotatably installed on one side of the inner top of the protective frame close to the top frame.

[0013] In summary, the present invention has the following beneficial technical effects: 1. For the ore crushing device for underground mining, by setting the electric push rod, push plate, fixed block and T-shaped slider, the ore crushed by the crushing roller falls on the top of the bottom plate between the two side plates. After a certain amount of ore is reached, the crushing stops. The electric push rod is controlled to extend synchronously to make the push plate push the crushed stones out of the bottom plate, which is convenient for cleaning the crushed stones. At the same time, the push plate drives the T-shaped slider to move on the top of the fixed block, and the baffle is controlled to move to the bottom of the mounting frame to block the crushed stones, so as to avoid the crushed stones on the surface of the crushing roller falling on the surface of the electric push rod and causing damage to the electric push rod when cleaning the crushed stones on the top of the bottom plate. 2. For the ore crushing device for underground mining, by setting the crushing roller, guiding frame, roller, protective frame and protective curtain, the large ore is placed on the surface of the roller at the top of the top frame, and the ore is pushed to move through the protective curtain on the top of the roller to the guiding frame. Under the guiding of the inclined surface of the guiding frame, the ore falls between the crushing rollers. The rotating motor is started to control the three crushing rollers to rotate to crush the ore. The crushed stones generated during crushing fly in the protective frame and are blocked by the protective frame and the protective curtain, avoiding the crushed stones from splashing and injuring the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is the overall structural schematic diagram of Embodiment 1 of an ore crushing device for underground mining according to the present invention; Figure 2 is the three-dimensional sectional structural schematic diagram of the bottom plate, fixed block and roller of Embodiment 1 of an ore crushing device for underground mining according to the present invention; Figure 3 is the three-dimensional sectional structural schematic diagram of the mounting frame, crushing roller and top frame of Embodiment 1 of an ore crushing device for underground mining according to the present invention; Figure 4 It is a schematic cross-sectional structure diagram of the mounting frame, crushing roller and top frame in three dimensions of Embodiment 2 of an ore crushing device for underground mining according to the present invention.

[0015] Explanation of reference numerals: 1, bottom plate; 2, side plate; 3, fixing block; 4, T-shaped groove; 5, baffle; 6, electric push rod; 7, T-shaped slider; 8, push plate; 9, roller; 10, first support column; 11, mounting frame; 12, crushing roller; 13, gear; 14, rotating motor; 15, chassis; 16, chute; 17, protective plate; 18, collection box; 19, second support column; 20, top frame; 21, mounting shaft; 22, drum; 23, guide frame; 24, protective frame; 25, protective curtain. Specific embodiments

[0016] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0017] Referring to Figure 1 and Figure 2 , this embodiment includes a bottom plate 1, side plates 2 and a first support column 10, which constitute the installation foundation of the lowest layer of this device, and its interior includes a fixing block 3, a baffle 5, an electric push rod 6, a T-shaped slider 7 and a push plate 8.

[0018] Specifically, referring to Figure 1 and Figure 2 , on one side of the top of the bottom plate 1, side plates 2 are symmetrically installed, and on the other side, a first support column 10 is installed. The fixing block 3 is installed on one side of the bottom plate 1 close to the first support column 10. One end of the electric push rod 6 is installed on the side of the fixing block 3 close to the side plate 2, and the other end is fixedly installed with the push plate 8, and the push plate 8 is arranged between the two groups of side plates 2 on the top of the bottom plate 1. By setting the push plate 8, when controlling the synchronous expansion and contraction of the electric push rod 6, the push plate 8 can be pushed and retracted on the top of the bottom plate 1, and the crushed stones located between the two groups of side plates 2 on the top of the bottom plate 1 can be pushed out, avoiding the accumulation of crushed stones and affecting the crushing of ores.

[0019] Referring to Figure 1 and Figure 2 , a baffle 5 is arranged on the top of the fixing block 3, and the baffle 5 is fixed to the push plate 8. Due to the presence of the baffle 5, the push plate 8 can drive the baffle 5 to move synchronously, so that the baffle 5 can move to the lower part of the falling crushed stones (i.e., the bottom of the mounting frame 11) to block the crushed stones and prevent the crushed stones from falling on the surface of the electric push rod 6 and causing damage to the electric push rod 6; Referring to Figure 1 and Figure 2, the fixed block 3 is provided with a T-shaped groove 4, a T-shaped slider 7 is slidably connected in the T-shaped groove 4, and the T-shaped slider 7 is installed at the central position of the bottom of the baffle 5 to achieve a supporting effect; in addition, a plurality of groups of rollers 9 are symmetrically and equidistantly installed on both sides of the T-shaped slider 7, and the rollers 9 correspond to the two ends of the "T" shape of the T-shaped groove 4. By providing the T-shaped slider 7 and the rollers 9, the T-shaped slider 7 supports the baffle 5 at the bottom of the baffle 5, avoiding the baffle 5 from falling due to the heavy gravel on the top of the baffle 5. At the same time, the push plate 8 drives the T-shaped slider 7 to slide inside the T-shaped groove 4, so that the rollers 9 roll inside the T-shaped groove 4, thereby reducing the friction when the T-shaped slider 7 slides inside the T-shaped groove 4.

[0020] Referring to Figure 1 and Figure 3 , the device further includes a mounting frame 11, a chassis 15 and a second support column 19, which constitute the mounting foundation of the second layer. The mounting frame 11 is installed on the tops of the two side plates 2, the chassis 15 is installed on one side of the mounting frame 11, the bottom of the first support column 10 is installed on the bottom plate 1, the top of the first support column 10 is fixedly connected to the bottom of the chassis 15, and the second support column 19 is installed on the top of the chassis 15.

[0021] Specifically, three crushing rolls 12 are installed inside the mounting frame 11 in parallel, and one end of each crushing roll 12 passes through the mounting frame 11 and rotates coaxially with a gear 13, and the three gears 13 mesh with each other in pairs. One of the three gears 13 rotates coaxially on one side and is connected to a rotating motor 14. Due to the arrangement of the gears 13, when the rotating motor 14 is started to drive the gear 13 to rotate out, two adjacent meshing gears 13 can be controlled to drive the crushing rolls 12 to rotate in opposite directions to crush the ore.

[0022] One side of the chassis 15 close to the mounting frame 11 is fixedly connected to the rotating motor 14, and there is a chute 16 above the chassis 15, and a protective plate 17 is fixedly installed on one side of the chute 16 close to the rotating motor 14. Due to the arrangement of the protective plate 17, the gravel falling from the surface of the ore is blocked by the protective plate 17, ensuring that the gravel will not directly impact the rotating motor 14 and the gears 13, and reducing the damage to the rotating motor 14 and the gears 13.

[0023] A collection box 18 is slidably installed inside the chute 16. The top of the protective plate 17 and the two second support columns 19 are fixedly installed with a top frame 20. A plurality of mounting shafts 21 are fixedly installed inside the top frame 20, and a roller 22 is rotatably installed on the surface of the mounting shaft 21. Due to the arrangement of the roller 22 and the collection box 18, after the ore is placed on the top of the roller 22, the ore is pushed to move, so that the roller 22 rolls, facilitating the ore to be pushed towards the crushing roll 12, and the gravel and soil falling from the surface of the ore placed on the top frame 20 fall into the collection box 18 through the top frame 20 for convenient centralized treatment.

[0024] Reference Figure 4 In another embodiment, an inclined block is slidably installed inside the chute 16. The inclined block has an inclined surface that slopes towards the protective plate 17. One side of the chassis 15 close to the protective plate 17 is penetrated and grooved, so that the crushed stones and soil falling from the surface of the ore placed on the top frame 20 pass through the top frame 20 and fall on the inclined surface, and then fall into the baffle 5 through the notch on the bottom 15.

[0025] A guide frame 23 is fixedly installed at the top of the mounting frame 11. The side of the guide frame 23 close to the top frame 20 is in a slope shape. Due to the presence of the guide frame 23, the ore slides down the inclined surface of the guide frame 23 and falls on the crushing roller 12, preventing the ore from directly falling on the top of the crushing roller 12 from the top frame 20 and causing damage to the crushing roller 12. A protective frame 24 is fixedly installed at the top of the guide frame 23, and a protective curtain 25 is rotatably installed on the inner top of the protective frame 24 close to the top frame 20. With the protective frame 24 and the protective curtain 25 provided, the crushed stones broken by the crushing roller 12 fly everywhere and are blocked by the protective frame 24 and the protective curtain 25 to prevent the crushed stones from injuring the staff. In addition, the top frame 20, the guide frame 23 and the protective frame 24 constitute the third layer of this device.

[0026] The implementation principle of an ore crushing device for underground mining in an embodiment of the present invention is as follows: Place large pieces of ore on the top of the roller 22. The crushed stones and soil on the surface of the ore fall into the inside of the collection box 18 when passing through the top frame 20. Push the ore on the top of the roller 22 and pass through the protective curtain 25 until it moves to the inclined surface of the guide frame 23 and slides down to the top of the crushing roller 12. Start the rotating motor 14 to control the crushing roller 12 to rotate and crush the ore. The crushed stones after crushing fall on the bottom plate 1, that is, between the two side plates 2 and the push plate 8. After the crushed stones accumulate to a certain volume, stop the rotating motor 14, control the electric push rod 6 to extend so that the push plate 8 pushes out the accumulated crushed stones from the bottom plate 1, preventing the crushed stones from accumulating at the bottom of the crushing roller 12. At the same time, the push plate 8 drives the baffle 5 to move to the bottom of the mounting frame 11 to prevent the crushed stones from directly falling on the surface of the electric push rod 6.

[0027] The above are all the preferred embodiments of the present invention, and the protection scope of the present invention is not limited accordingly. Among them, the same parts are denoted by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the directions in the drawings, and the words "inner" and "outer" respectively refer to the directions towards or away from the geometric center of a specific component. Therefore, all equivalent changes made according to the structure, shape and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. An ore crushing device for underground mining, characterized in that, It includes a bottom plate (1), a plurality of side plates (2) and a plurality of first support columns (10). The side plates (2) are symmetrically installed on one side of the top of the bottom plate (1), and the first support columns (10) are symmetrically installed on the other side of the top of the bottom plate (1). A fixed block (3) is fixedly installed on one side of the top of the bottom plate (1). An electric push rod (6) is arranged on the side of the fixed block (3) close to the side plate (2). One end of the push rod (6) far from the fixed block (3) is installed with a push plate (8). The push plate (8) is located between the side plates (2). A baffle (5) is arranged on the top of the fixed block (3) and is connected to the push plate (8). An installation frame (11) is fixedly installed on the top of the side plate (2). A plurality of crushing rollers (12) for crushing ores are arranged in the installation frame (11).

2. The ore crushing device for underground mining according to claim 1, characterized in that, The fixed block (3) has a T-shaped groove (4). A T-shaped slider (7) is slidably connected in the T-shaped groove (4), and the T-shaped slider (7) is fixed at the center of the bottom of the baffle (5).

3. The ore crushing device for underground mining according to claim 2, characterized in that, A plurality of rollers (9) are symmetrically installed on both sides of the T-shaped slider (7), and the rollers (9) roll on the bottom surface of the T-shaped groove.

4. A ore crushing device for underground mining according to claim 1, characterized in that, There are three groups of the crushing rollers (12). One end of the crushing roller (12) passes through the installation frame (11) and coaxially rotates with a gear (13). A rotating motor (14) coaxially rotates on one side of the middle gear (13) among the three groups of gears (13).

5. An ore crushing device for underground mining according to claim 1, characterized in that, A bottom frame (15) is fixedly installed on one side of the installation frame (11). The bottom of the first support column (10) is connected to the bottom plate (1), and the top is connected to the bottom frame (15). The rotating motor (14) is installed on the side close to the installation frame (11).

6. The ore crushing device for underground mining according to claim 5, characterized in that, The top of the bottom frame (15) has a chute (16). A protective plate (17) is arranged on the top of the bottom frame (15) on the side of the chute (16) close to the rotating motor (14). A collection box (18) is slidably installed in the chute (16). Second support columns (19) are symmetrically installed on the side of the top of the bottom frame (15) far from the installation frame (11).

7. An ore crushing device for underground mining according to claim 6, characterized in that, A guiding frame (23) is installed on the top of the installation frame (11). The top of the protective plate (17) and the second support column (19) is fixedly installed with a top frame (20). A plurality of groups of installation shafts (21) are installed in the top frame (20), and a roller (22) is rotatably connected to the outer peripheral surface of the installation shaft (21).

8. The ore crushing device for underground mining according to claim 7, characterized in that, One side of the guiding frame (23) close to the top frame (20) is an inclined surface. A protective frame (24) is fixedly installed on the top of the guiding frame (23). A protective curtain (25) is rotatably installed on the side of the inner top of the protective frame (24) close to the top frame (20).

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