A coal mining device for open-pit coal mines

Abstract

This utility model discloses an open-pit coal mining device, comprising: a casing, a crushing component, a power component, and a buffer plate. The crushing component is disposed inside the casing and is used to crush coal. The power component is disposed on one side of the crushing component. The buffer plate is inserted and connected inside the casing and is used to protect the crushing component. An absorption component is disposed at the bottom of the buffer plate and is used to absorb the impact of the coal. Through the design of the buffer plate and the absorption component, when the coal falls towards the crushing component, it is first received by the buffer plate. The buffer plate blocks the impact of the coal on the buffer plate, and the absorption component absorbs the impact of the coal on the buffer plate, thereby reducing the impact of the falling coal on the crushing component, protecting the crushing component, and reducing the damage to the crushing component caused by the impact of the coal.

Description

Technical Field

[0001] This utility model relates to the field of coal mining technology, and in particular to a coal mining device for open-pit coal mines. Background Technology

[0002] For example, the open-pit coal mining device disclosed in patent publication number CN218132151U includes a base, a hopper on the base, a conveying channel on the base communicating with the hopper, a cover plate rotatably connected to the hopper, the cover plate covering the bottom opening of the hopper, two parallel crushing rollers arranged in the conveying channel, the crushing rollers having crushing teeth arranged circumferentially, and a gap between the two crushing teeth, and a driving mechanism on the base for driving the two crushing teeth to rotate synchronously in opposite directions. This utility model can crush coal blocks, avoid coal block blockage, and ensure the progress of work.

[0003] Traditional crushing devices consist of a machine body and crushing rollers. During the crushing process, coal blocks fall directly and impact the crushing rollers, causing them to endure strong impacts for a long time. After prolonged use, the rollers are damaged due to continuous collisions, thus shortening their service life. Therefore, this solution proposes an open-pit coal mining device to address the above problems. Utility Model Content

[0004] The purpose of this utility model is to provide a coal mining device for open-pit coal mines to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an open-pit coal mining device, comprising:

[0006] chassis;

[0007] A crushing assembly, disposed inside a housing, is used for crushing coal.

[0008] A power assembly, wherein the power assembly is disposed on one side of the crushing assembly;

[0009] A buffer plate is inserted into the inside of the machine housing. The buffer plate is used to protect the crushing components. An absorption component is provided at the bottom of the buffer plate to absorb the impact of coal mine shocks.

[0010] Preferably, the crushing assembly includes multiple crushing wheels that are interposed and connected inside the housing, and a fixed roller is interposed and connected to the middle of each of the multiple crushing wheels. A bearing seat is provided at the connection between the fixed roller and the housing.

[0011] Preferably, the power assembly includes a drive gear, and one end of each of the plurality of fixed rollers is fixedly connected to a driven gear, one of the driven gears meshing with the top of the drive gear, a connecting gear meshing with the back of the drive gear, and the connecting gear meshing with the bottom of another driven gear.

[0012] Preferably, a mounting plate is fixedly connected to one side of the housing, a power motor is fixedly connected to one side of the mounting plate, and the drive gear is fixedly connected to the output end of the power motor.

[0013] Preferably, the absorption assembly includes a connecting plate disposed at the bottom of the buffer plate, and bolts are provided at the connection between the connecting plate and the buffer plate. A fixing plate is fixedly connected between the inner walls of the front and back sides of the housing, and a rubber ring is provided on the side of the fixing plate opposite to the connecting plate.

[0014] Preferably, a guide rod is fixedly connected to the bottom end of the connecting plate, and the guide rod is inserted and connected to the top of the fixed plate.

[0015] Preferably, a limiting disc is fixedly connected to the bottom end of the guide rod, and the limiting disc is used to limit the movement distance of the buffer plate.

[0016] The technical effects and advantages of this utility model are as follows:

[0017] This utility model, through the design of a buffer plate and an absorption component, ensures that when coal ore falls towards the crushing component, it is first caught by the buffer plate. The buffer plate acts as a barrier, and the absorption component absorbs the impact of the coal ore on the buffer plate, thereby reducing the impact of the falling coal ore on the crushing component, protecting the crushing component, and reducing the possibility of damage to the crushing component due to the impact of coal ore. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a side sectional view of the present invention.

[0020] Figure 3 This is a top view sectional structural diagram of the present invention;

[0021] Figure 4 This is a schematic diagram of the front structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the connection structure of the driven gear, driving gear, and connecting gear of this utility model.

[0023] In the diagram: 1. Casing; 2. Crushing assembly; 201. Crushing wheel; 202. Fixed roller; 203. Bearing housing; 3. Power assembly; 301. Driven gear; 302. Driven gear; 303. Power motor; 304. Connecting gear; 305. Mounting plate; 4. Buffer plate; 5. Absorption assembly; 501. Bolt; 502. Connecting plate; 503. Rubber ring; 504. Guide rod; 505. Fixing plate; 506. Limiting disc. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] This utility model provides, for example Figure 1-5 The open-pit coal mining apparatus shown includes:

[0026] Casing 1;

[0027] Crushing component 2 is located inside the housing 1 and is used to crush coal.

[0028] Power assembly 3 is located on one side of crushing assembly 2;

[0029] The buffer plate 4 is inserted into the inside of the housing 1. The buffer plate 4 is used to protect the crushing component 2. The bottom of the buffer plate 4 is provided with an absorption component 5, which is used to absorb the impact of the coal mine.

[0030] It should be noted that the horizontal longitudinal section of the buffer plate 4 is set as a triangle. In use, when the coal ore falls to the top of the buffer plate 4, the inclined side of the top of the buffer plate 4 guides the coal ore to both sides, so that it enters the interior of the casing 1. In use, when the coal ore falls towards the crushing component 2, it is first received by the buffer plate 4. The buffer plate 4 blocks the impact of the coal ore on the buffer plate 4, and the absorption component 5 absorbs the impact of the coal ore on the buffer plate 4, thereby reducing the impact of the falling coal ore on the crushing component 2, protecting the crushing component 2, and reducing the possibility of damage to the crushing component 2 due to the impact of the coal ore.

[0031] Specifically, the crushing assembly 2 includes multiple crushing wheels 201 that are interspersed inside the housing 1. Each of the multiple crushing wheels 201 is interspersed with a fixed roller 202. A bearing seat 203 is provided at the connection between the fixed roller 202 and the housing 1.

[0032] It should be noted that there are two crushing wheels 201, and the two crushing wheels 201 are not the same size. Bearing seats 203 are provided at the connection between the two fixed rollers 202 and the housing 1. The bearing seats 203 fix the position of the fixed rollers 202 without affecting their rotation. In use, the power component 3 drives the two fixed rollers 202 to rotate, and the two rotating fixed rollers 202 drive the crushing wheels 201 to rotate inside the housing 1, thereby crushing the coal ore that enters the housing 1.

[0033] Specifically, the power assembly 3 includes a drive gear 302, and a driven gear 301 is fixedly connected to one end of a plurality of fixed rollers 202. One driven gear 301 meshes with the top of the drive gear 302, and a connecting gear 304 meshes with the back of the drive gear 302. The connecting gear 304 meshes with the bottom of another driven gear 301. A mounting plate 305 is fixedly connected to one side of the housing 1, and a power motor 303 is fixedly connected to one side of the mounting plate 305. The drive gear 302 is fixedly connected to the output end of the power motor 303.

[0034] It should be noted that the horizontal longitudinal section of the mounting plate 305 is L-shaped. The power motor 303 and the drive gear 302 are respectively set on both sides of the mounting plate 305. The power motor 303 is fixedly connected to the mounting plate 305 by screws, and the output end of the power motor 303 passes through the mounting plate 305. The drive gear 302 is fixedly connected to the output end of the power motor 303. The connection point between the connecting gear 304 and the mounting plate 305 is provided with a bearing. The bearing fixes the position of the connecting gear 304 without affecting its rotation. When it is necessary to rotate the crushing wheel 201, the power motor 303 is turned on, and the power motor 303 drives the drive gear 302 to rotate. The drive gear 302 drives one of the driven gears 301 and the connecting gear 304 to rotate. The connecting gear 304 drives the other driven gear 301 to rotate. The rotating driven gear 301 drives the fixed roller 202 and the crushing wheel 201 to rotate.

[0035] Specifically, the absorption assembly 5 includes a connecting plate 502 disposed at the bottom of the buffer plate 4, a bolt 501 disposed at the connection between the connecting plate 502 and the buffer plate 4, a fixing plate 505 fixedly connected between the inner walls of the front and back sides of the housing 1, a rubber ring 503 disposed on the side of the fixing plate 505 opposite to the connecting plate 502, a guide rod 504 fixedly connected to the bottom end of the connecting plate 502, the guide rod 504 being inserted through the top of the fixing plate 505, and a limiting disc 506 fixedly connected to the bottom end of the guide rod 504, the limiting disc 506 being used to limit the movement distance of the buffer plate 4.

[0036] It should be noted that the fixed plate 505 is fixedly connected to the inside of the housing 1. The two ends of the rubber ring 503 are glued to opposite sides of the fixed plate 505 and the connecting plate 502. The rubber ring 503 is made of rubber. When the buffer plate 4 is impacted by coal ore, the buffer plate 4 drives the connecting plate 502 to move towards the rubber ring 503. At this time, the rubber ring 503 absorbs the downward impact of the buffer plate 4 through deformation. The cross-section of the rubber ring 503 is circular, allowing the guide rod 504 to pass through it. A guide hole is provided on the top of the plate 505. The guide hole is adapted to the guide rod 504, allowing the guide rod 504 to pass through the guide hole and through the fixed plate 505. The inner wall of the guide hole is in contact with the outer wall of the guide rod 504. This design restricts the movement direction of the guide rod 504, and restricts the movement direction of the connecting plate 502 by limiting the movement direction of the guide rod 504. The connecting plate 502 is connected to the buffer plate 4 by bolts 501. This design allows the buffer plate 4 to be disassembled, replaced and maintained, avoiding the situation where the buffer plate 4 is damaged and cannot be used.

[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A coal extraction apparatus for an open cut coal mine, characterised in that, include: Casing (1); Crushing assembly (2), the crushing assembly (2) is disposed inside the housing (1), the crushing assembly (2) is used to crush coal; A power assembly (3) is disposed on one side of the crushing assembly (2); A buffer plate (4) is inserted into the inside of the housing (1). The buffer plate (4) is used to protect the crushing component (2). An absorption component (5) is provided at the bottom of the buffer plate (4). The absorption component (5) is used to absorb the impact of the coal mine.

2. A coal extraction device for an open cut coal mine as claimed in claim 1, characterised in that, The crushing assembly (2) includes multiple crushing wheels (201) that are interwoven inside the housing (1). A fixed roller (202) is interwoven in the middle of each of the multiple crushing wheels (201). A bearing seat (203) is provided at the connection between the fixed roller (202) and the housing (1).

3. A coal extraction device for an open cut coal mine as claimed in claim 2, characterised in that, The power assembly (3) includes a drive gear (302), and one end of each of the plurality of fixed rollers (202) is fixedly connected to a driven gear (301). One of the driven gears (301) meshes with the top of the drive gear (302), and a connecting gear (304) meshes with the back of the drive gear (302). The connecting gear (304) meshes with the bottom of another driven gear (301).

4. A coal extraction device for an open cut coal mine as claimed in claim 3, characterised in that, A mounting plate (305) is fixedly connected to one side of the housing (1), and a power motor (303) is fixedly connected to one side of the mounting plate (305). The drive gear (302) is fixedly connected to the output end of the power motor (303).

5. A coal extraction device for an open cut coal mine as claimed in claim 1, characterised in that, The absorption assembly (5) includes a connecting plate (502) disposed at the bottom of the buffer plate (4), and a bolt (501) is provided at the connection between the connecting plate (502) and the buffer plate (4). A fixing plate (505) is fixedly connected between the inner walls of the front and back sides of the housing (1), and a rubber ring (503) is provided on the side of the fixing plate (505) opposite to the connecting plate (502).

6. A coal extraction device for an open cut coal mine as claimed in claim 5 wherein, The bottom end of the connecting plate (502) is fixedly connected to a guide rod (504), and the guide rod (504) is inserted and connected to the top of the fixed plate (505).

7. A coal extraction device for an open cut coal mine as claimed in claim 6, characterised in that, The bottom end of the guide rod (504) is fixedly connected to a limiting disc (506), which is used to limit the movement distance of the buffer plate (4).

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