A mining scraper convenient for maintenance and repair and its use method

Abstract

The present invention discloses a mining scraper that is easy to maintain and overhaul and a method for using the same, and relates to the technical field of mining scrapers. The invention aims to solve the problem that the housing of the existing mining scraper is divided into multiple parts and is fixed to a base by a plurality of bolts, and the disassembly and assembly during maintenance are cumbersome. Positioning frames are installed around the outer wall of the mining scraper housing, a base is installed on the lower surface of the mining scraper housing, and support legs are installed around the lower surface of the base, and four support legs are provided. Reinforcement rods are installed between the four support legs, and the reinforcement rods are welded to the support legs. A reduction motor is installed above the mining scraper housing, and the reduction motor is threadedly connected to the mining scraper housing through bolts.

Description

Technical Field

[0001] The invention relates to the technical field of mining scrapers, and in particular to a mining scraper that is easy to maintain and overhaul and a use method thereof. Background Art

[0002] A conveyor that uses a scraper chain to transport bulk materials in a trough is called a scraper conveyor. A scraper conveyor whose adjacent middle troughs can bend to a limited extent in the horizontal and vertical planes is called a flexible scraper conveyor. Among them, the working face conveyor whose body is bent 90 degrees at the intersection of the working face and the transport tunnel is called a "corner scraper conveyor". In the current coal mining working face, the role of the scraper conveyor is not only to transport coal and materials, but also to serve as the running track of the coal mining machine. Therefore, it has become an indispensable main equipment in the modern coal mining process. If the scraper conveyor can maintain continuous operation, production can proceed normally. Otherwise, the entire coal mining working face will be shut down, causing the entire production to be interrupted. The main structure and components of various types of scraper conveyors are basically the same. It consists of three parts: the head, the middle part and the tail part.

[0003] However, the existing mining scraper casing is divided into multiple parts and is fixed to the base with a number of bolts, which makes disassembly and assembly more complicated during inspection and maintenance; therefore, it does not meet the existing needs. In this regard, we propose a mining scraper that is easy to maintain and overhaul and a method of using the same. Summary of the invention

[0004] The purpose of the present invention is to provide a mining scraper that is easy to maintain and overhaul and a method of using the same, so as to solve the problem raised in the above background technology that the housing of the existing mining scraper is divided into multiple parts and is fixed to the base with a number of bolts, making it cumbersome to disassemble and assemble during overhaul and maintenance.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a mining scraper that is easy to maintain and overhaul, comprising a mining scraper housing, positioning frames are installed around the outer walls of the mining scraper housing, a base is installed on the lower surface of the mining scraper housing, supporting legs are installed around the lower surface of the base, and four supporting legs are provided, reinforcing rods are installed between the four supporting legs, and the reinforcing rods are welded to the supporting legs, a reduction motor is installed above the mining scraper housing, the reduction motor is threadedly connected to the mining scraper housing by bolts, a drive mechanism housing is provided on one side of the mining scraper housing, and the drive mechanism housing and the mining scraper housing are an integrated structure, a feed port is provided at the rear end of the reduction motor, and the feed port is installed on the mining scraper housing, and the mining scraper A driving sprocket is provided at one end of the scraper housing, and a driven sprocket is provided at the other end of the mining scraper housing. Both sides of the driving sprocket are transmission-connected to both sides of the driven sprocket through traction chains. Scrapers are installed between the traction chains, and there are several scrapers. Electromagnets are installed around the lower surface of the positioning frame, and there are eight electromagnets. Magnet positioning grooves are provided around the upper surface of the base, and there are eight magnet positioning grooves. Handles are installed at both ends of the upper surface of the mining scraper housing, and the handles are welded to the mining scraper housing. Brackets are installed on both sides of the driving sprocket and the driven sprocket, and bearings are installed at the connection between the driving sprocket and the driven sprocket and the bracket. An observation window is installed on one side outer wall of the mining scraper housing, and there are two observation windows.

[0006] Preferably, the mining scraper housing is magnetically connected to the magnet positioning groove on the base through the electromagnet on the positioning frame, a wiring terminal is provided at the upper end of the electromagnet, and the wiring terminal passes through and extends to the outside of the positioning frame, and a sponge layer is provided on the inner wall of the magnet positioning groove.

[0007] Preferably, the output end of the reduction motor passes through and extends to the interior of the driving mechanism housing, and is installed with a first transmission wheel. A second transmission wheel is arranged inside the driving mechanism housing, and the second transmission wheel is fixedly connected to the roller shaft of the driving sprocket. The first transmission wheel is connected to the second transmission wheel through a transmission belt.

[0008] Preferably, a hydraulic knife valve seat is installed on the lower surface of the base, and a valve plate is arranged inside the hydraulic knife valve seat, a valve plate storage bin is arranged on one side of the hydraulic knife valve seat, and the valve plate storage bin and the hydraulic knife valve seat are an integrated structure, a hydraulic telescopic rod is installed on the outer wall of the valve plate storage bin, the output end of the hydraulic telescopic rod passes through the valve plate storage bin and extends to the interior of the hydraulic knife valve seat, and is fixedly connected to the valve plate, a material storage box is arranged below the hydraulic knife valve seat, and the material storage box is threadedly connected to the reinforcement rod by screws, a particle level sensor is installed on the rear end face of the mining scraper housing, and the sensing end of the particle level sensor passes through and extends to the interior of the mining scraper housing.

[0009] Preferably, an inspection cover is installed on the front end surface of the driving mechanism housing, and the inspection cover is threadedly connected to the driving mechanism housing through screws.

[0010] Preferably, a metal protective net is provided inside the inspection cover plate, and the metal protective net is welded to the inspection cover plate.

[0011] Preferably, a non-woven fabric isolation layer is installed on the inner wall of the metal protective net, and the non-woven fabric isolation layer is fixedly connected to the inner wall of the metal protective net.

[0012] Preferably, the scraper includes a high manganese steel core, a rubber shock-absorbing ring and a high manganese steel outer lining plate. The rubber shock-absorbing ring is arranged between the high manganese steel core and the high manganese steel outer lining plate and is fixedly connected to the high manganese steel core and the high manganese steel outer lining plate. The outer walls of the high manganese steel core and the high manganese steel outer lining plate are both provided with a polytetrafluoroethylene coating.

[0013] Preferably, a first discharge port is installed at one end of the lower surface of the base, a second discharge port is arranged on one side of the first discharge port, and valves are installed inside the first discharge port and the second discharge port.

[0014] Preferably, the method for using a mining scraper that is easy to maintain and overhaul comprises the following steps:

[0015] Step 1: Start the reduction motor, drive the first transmission wheel to rotate through the output end of the reduction motor, and drive the second transmission wheel and the driving sprocket to rotate by the transmission belt, so as to drive the traction chain to transmit on the driving sprocket and the driven sprocket, and drive the scraper to run;

[0016] Step 2: Pour the coal into the feed port of the mining scraper housing, and transport it to the first discharge port and the second discharge port by the transmission action of the scraper;

[0017] Step 3: During the transportation process, if the particle level sensor senses that the coal is piled up high, it will send a signal to the relay to drive the hydraulic telescopic rod to operate, open the hydraulic knife valve seat, and discharge the excess coal to avoid blockage;

[0018] Step 4: When maintenance is required, first separate the output end of the reduction motor from the drive mechanism housing, then remove the bolts on the motor base, remove the reduction motor, and then turn off the electromagnet at the connection. Use the handle to separate the entire mining scraper housing together with the drive mechanism housing and the base to expose the internal transmission structure.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The present invention uses an electromagnet to connect the mining scraper casing and the base by magnetic adsorption, and a sponge layer is provided on the inner wall of the magnet positioning groove. The electromagnet adsorption connection method is adopted. When the equipment is running, the electromagnet can be started to improve the firmness of the connection between the mining scraper casing and the base, so as to avoid the loosening of the casing connection caused by the operation of the driving mechanism. When maintenance is needed, the casing and the base can be separated by turning off the electromagnet, exposing the internal transmission structure, which is convenient for maintenance work. The sponge layer provided on the inner wall of the magnet positioning groove can clamp the electromagnet by elastic action after the electromagnet is inserted, so as to play a certain fixing effect, so that the electromagnet does not need to be turned on when the equipment is not running, thereby saving energy.

[0021] 2. By setting two discharge ports at the bottom of the device, on the one hand, it can alleviate the situation of too much material and material blockage, and on the other hand, it can facilitate the sub-packaging of coal. To ensure the safety of the device, a particle level sensor is installed inside the conveying chamber. During the conveying process, if the particle level sensor senses that the coal is piled up too high, it will send a signal to the relay to drive the hydraulic telescopic rod to operate, open the hydraulic knife valve seat, and discharge the excess coal, thereby realizing intelligent material control and avoiding frequent overload and accidental shutdown of the device due to excessive coal.

[0022] 3. By using a high manganese steel core, a rubber shock-absorbing ring and a high manganese steel outer lining as the scraper structure, wherein the rubber shock-absorbing ring is arranged between the high manganese steel core and the high manganese steel outer lining, when the coal mine falls and impacts the scraper, the rubber material can play a good shock-absorbing effect, effectively extending the overall service life of the scraper; the high manganese steel core and the high manganese steel outer lining are used as the coal contact material, which has a high hardness and good wear resistance and scratch resistance; and a polytetrafluoroethylene coating is arranged on the outer wall of the high manganese steel core and the high manganese steel outer lining, which is a non-stick coating that can avoid coal ash contamination.

[0023] 4. By installing an inspection cover on the front end face of the driving mechanism housing, the inspection cover is threadedly connected to the driving mechanism housing through screws. When only a small-scale inspection and maintenance work is performed on the driving mechanism, there is no need to disassemble the entire housing. You only need to remove the screws on the inspection cover and remove the cover. A metal protective net is provided inside the inspection cover, and a non-woven fabric isolation layer is installed on the inner wall of the metal protective net. During the use of the cover, the metal protective net can isolate large particles of impurities and ensure the strength of the inspection cover and the heat dissipation effect of the driving mechanism, while the non-woven fabric isolation layer can further isolate fine dust impurities. Because it has good air permeability, it will not affect the heat dissipation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 It is a front structural schematic diagram of the present invention;

[0026] Figure 3 It is a schematic diagram of the interior of the housing of the mining scraper of the present invention;

[0027] Figure 4 It is a schematic diagram of the external structure of the driving mechanism housing of the present invention;

[0028] Figure 5 It is a schematic diagram of the internal structure of the driving mechanism housing of the present invention;

[0029] Figure 6 It is an enlarged view of the structure at A of the present invention;

[0030] Figure 7 It is a schematic diagram of the scraper structure of the present invention;

[0031] In the figure: 1. Mining scraper housing; 2. Positioning frame; 3. Base; 4. Support leg; 5. Observation window; 6. Handle; 7. Feeding port; 8. Speed ​​reducer; 9. Driving mechanism housing; 10. Reinforcement rod; 11. Bolt; 12. First discharge port; 13. Second discharge port; 14. Valve; 15. Driving sprocket; 16. Driven sprocket; 17. Bracket; 18. Bearing; 19. Drag chain; 20. Scraper; 201. High manganese steel core; 202. Rubber Shock-absorbing ring; 203, high manganese steel outer lining; 204, polytetrafluoroethylene coating; 21, inspection cover; 22, metal protective net; 23, non-woven isolation layer; 24, screws; 25, first transmission wheel; 26, second transmission wheel; 27, transmission belt; 28, electromagnet; 29, terminal; 30, magnet positioning groove; 31, sponge layer; 32, storage box; 33, hydraulic knife valve seat; 34, valve sheet storage bin; 35, hydraulic telescopic rod; 36, grain position sensor. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0033] See also Figure 1-7 The present invention provides an embodiment: a mining scraper that is easy to maintain and overhaul, including a mining scraper housing 1, a positioning frame 2 is installed around the outer wall of the mining scraper housing 1, a base 3 is installed on the lower surface of the mining scraper housing 1, and support legs 4 are installed around the lower surface of the base 3, and four support legs 4 are provided, and rubber shock-absorbing pads are provided at the bottom of the support legs 4 to improve the stability of the device, and reinforcing rods 10 are installed between the four support legs 4, and the reinforcing rods 10 are welded to the support legs 4, and the reinforcing rods 10 can improve the strength of the support legs 4, and the upper part of the mining scraper housing 1 A reduction motor 8 is installed, and the reduction motor 8 is threadedly connected to the mining scraper housing 1 through bolts 11. The reduction motor 8 is fixed by bolts 11, and the disassembly and assembly is relatively convenient. A driving mechanism housing 9 is arranged on one side of the mining scraper housing 1, and the driving mechanism housing 9 and the mining scraper housing 1 are an integrated structure, and the driving mechanism housing 9 plays a role in protecting the driving mechanism. A feed port 7 is arranged at the rear end of the reduction motor 8, and the feed port 7 is installed on the mining scraper housing 1. A driving sprocket 15 is arranged at one end of the mining scraper housing 1, and a driven chain is arranged at the other end of the mining scraper housing 1. The two sides of the active sprocket 15 are connected to the two sides of the driven sprocket 16 through the traction chain 19. A scraper 20 is installed between the traction chains 19, and a plurality of scrapers 20 are provided. The traction chain 19 can drive the scraper 20 to run during the transmission process. Electromagnets 28 are installed around the lower surface of the positioning frame 2, and eight electromagnets 28 are provided. The electromagnets 28 play a role in magnetically adsorbing and connecting the mining scraper housing 1 and the base 3. Magnet positioning grooves 30 are provided around the upper surface of the base 3, and eight magnet positioning grooves 30 are provided. Both ends of the upper surface of the mining scraper housing 1 are A handle 6 is installed, and the handle 6 is welded to the mining scraper housing 1, brackets 17 are installed on both sides of the driving sprocket 15 and the driven sprocket 16, and bearings 18 are installed at the connection between the driving sprocket 15 and the driven sprocket 16 and the bracket 17. The driving sprocket 15 and the driven sprocket 16 are partially connected to the base 3 by means of the bracket 17, so that the housing can be directly separated from the base for easy maintenance. An observation window 5 is installed on the outer wall of one side of the mining scraper housing 1, and there are two observation windows 5. The observation window 5 can view the internal operating status of the mining scraper from the outside, which is convenient for timely processing when the material is stuck.

[0034] Furthermore, the mining scraper casing 1 is magnetically adsorbed and connected to the magnet positioning groove 30 on the base 3 through the electromagnet 28 on the positioning frame 2. A terminal 29 is provided at the upper end of the electromagnet 28, and the terminal 29 passes through and extends to the outside of the positioning frame 2. A sponge layer 31 is provided on the inner wall of the magnet positioning groove 30. The electromagnet 28 is adsorbed and connected. During operation, the electromagnet 28 can be started to improve the firmness of the connection between the mining scraper casing 1 and the base 3, so as to avoid the loosening of the casing connection caused by the operation of the driving mechanism. When maintenance is required, the electromagnet 28 can be turned off to separate the casing from the base 3, which is convenient and quick. The sponge layer 31 arranged on the inner wall of the magnet positioning groove 30 can clamp the electromagnet 28 by elastic action after the electromagnet 28 is inserted, so as to have a certain fixing effect, so that the electromagnet 28 does not need to be turned on when the equipment is not in operation, thereby saving energy.

[0035] Furthermore, the output end of the reduction motor 8 passes through and extends to the interior of the driving mechanism housing 9, and is installed with a first transmission wheel 25. A second transmission wheel 26 is arranged inside the driving mechanism housing 9, and the second transmission wheel 26 is fixedly connected to the roller shaft of the driving sprocket 15. The first transmission wheel 25 is connected to the second transmission wheel 26 through a transmission belt 27. The reduction motor 8 can drive the first transmission wheel 25 to rotate through the output end, and drive the second transmission wheel 26 and the driving sprocket 15 to rotate by relying on the transmission belt 27, thereby driving the traction chain 19 to transmit on the driving sprocket 15 and the driven sprocket 16.

[0036] Furthermore, a hydraulic knife valve seat 33 is installed on the lower surface of the base 3, and a valve plate is arranged inside the hydraulic knife valve seat 33, a valve plate storage compartment 34 is arranged on one side of the hydraulic knife valve seat 33, and the valve plate storage compartment 34 and the hydraulic knife valve seat 33 are an integrated structure, a hydraulic telescopic rod 35 is installed on the outer wall of the valve plate storage compartment 34, the output end of the hydraulic telescopic rod 35 passes through the valve plate storage compartment 34 and extends to the inside of the hydraulic knife valve seat 33, and is fixedly connected to the valve plate, and a hydraulic knife valve seat 33 is arranged below the hydraulic knife valve seat 33. There is a material storage box 32, and the material storage box 32 is threadedly connected to the reinforcement rod 10 by screws. A particle level sensor 36 is installed on the rear end surface of the mining scraper housing 1, and the sensing end of the particle level sensor 36 penetrates and extends to the interior of the mining scraper housing 1. The model of the particle level sensor 36 is SP-YC01S. During the transportation process, if the particle level sensor 36 senses that the coal material is piled up too high, it will send a signal to the relay to open the hydraulic knife valve seat 33 to discharge the excess coal material and avoid blockage.

[0037] Furthermore, an inspection cover plate 21 is installed on the front end surface of the driving mechanism housing 9, and the inspection cover plate 21 is threadedly connected to the driving mechanism housing 9 through screws 24. The inspection cover plate 21 adopts a threaded installation method, which is convenient for disassembly and assembly.

[0038] Furthermore, a metal protective net 22 is provided inside the inspection cover 21 and is welded to the inspection cover 21 . The metal protective net 22 can isolate large particles of impurities and ensure the strength of the inspection cover 21 and the heat dissipation effect of the drive mechanism.

[0039] Furthermore, a non-woven isolation layer 23 is installed on the inner wall of the metal protective net 22, and the non-woven isolation layer 23 is fixedly connected to the inner wall of the metal protective net 22. The non-woven isolation layer 23 can further isolate dust, and because it has good air permeability, it will not affect the heat dissipation effect.

[0040] Furthermore, the scraper 20 includes a high manganese steel core 201, a rubber shock-absorbing ring 202 and a high manganese steel outer lining 203. The rubber shock-absorbing ring 202 is arranged between the high manganese steel core 201 and the high manganese steel outer lining 203, and is fixedly connected to the high manganese steel core 201 and the high manganese steel outer lining 203. The outer walls of the high manganese steel core 201 and the high manganese steel outer lining 203 are provided with a polytetrafluoroethylene coating 204. The rubber material can achieve a good shock-absorbing effect and effectively extend the overall service life of the scraper 20. The high manganese steel core 201 and the high manganese steel outer lining 203 are used as the coal contact material, which has a high hardness and good wear resistance and scratch resistance. The outer walls of the high manganese steel core 201 and the high manganese steel outer lining 203 are provided with a polytetrafluoroethylene coating 204, which is a non-stick coating that can avoid coal ash contamination.

[0041] Furthermore, a first discharge port 12 is installed at one end of the lower surface of the base 3, and a second discharge port 13 is arranged on one side of the first discharge port 12. Valves 14 are installed inside the first discharge port 12 and the second discharge port 13. The two discharge ports can effectively avoid the situation where there is too much material and blockage occurs, and can facilitate packaging.

[0042] Furthermore, a method for using a mining scraper that is easy to maintain and overhaul includes the following steps:

[0043] Step 1: Start the reduction motor 8, drive the first transmission wheel 25 to rotate through the output end of the reduction motor 8, and drive the second transmission wheel 26 and the driving sprocket 15 to rotate by the transmission belt 27, thereby driving the traction chain 19 to transmit on the driving sprocket 15 and the driven sprocket 16, and drive the scraper 20 to run;

[0044] Step 2: Pour the coal into the feed port 7 of the mining scraper housing 1, and transport it to the first discharge port 12 and the second discharge port 13 by the transmission action of the scraper 20;

[0045] Step 3: During the transportation process, if the particle level sensor 36 senses that the coal is piled up high, it will send a signal to the relay to drive the hydraulic telescopic rod 35 to operate, open the hydraulic knife valve seat 33, and discharge the excess coal to avoid blockage;

[0046] Step 4: When maintenance is required, first separate the output end of the reduction motor 8 from the drive mechanism housing 9, then remove the bolts 11 on the motor base, remove the reduction motor 8, and then close the electromagnet 28 at the connection, and use the handle 6 to separate the entire mining scraper housing 1 together with the drive mechanism housing 9 and the base 3, thereby exposing the internal transmission structure.

[0047] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A mining scraper that is easy to maintain and overhaul, comprising a mining scraper housing (1), characterized in that: The outer wall of the mining scraper housing (1) is provided with positioning frames (2) on all sides, the lower surface of the mining scraper housing (1) is provided with a base (3), the lower surface of the base (3) is provided with support legs (4) on all sides, and four support legs (4) are provided, and reinforcement rods (10) are installed between the four support legs (4), and the reinforcement rods (10) are welded to the support legs (4), and a reduction motor (8) is installed above the mining scraper housing (1), and the reduction motor (8) The mining scraper housing (1) is threadedly connected to the mining scraper housing (1) by bolts (11); a driving mechanism housing (9) is provided on one side of the mining scraper housing (1); and the driving mechanism housing (9) and the mining scraper housing (1) are an integrated structure; a feed port (7) is provided at the rear end of the reduction motor (8), and the feed port (7) is mounted on the mining scraper housing (1); a driving sprocket (15) is provided at one end inside the mining scraper housing (1); and a driving sprocket (15) is provided at the other end inside the mining scraper housing (1). A driven sprocket (16) is provided at one end, and both sides of the driving sprocket (15) are transmission-connected to both sides of the driven sprocket (16) via a traction chain (19), a scraper (20) is installed between the traction chains (19), and a plurality of scrapers (20) are provided, electromagnets (28) are installed around the lower surface of the positioning frame (2), and eight electromagnets (28) are provided, and magnet positioning grooves (30) are provided around the upper surface of the base (3), and the magnet positioning grooves (30) are provided. There are eight, both ends of the upper surface of the mining scraper housing (1) are equipped with handles (6), and the handles (6) are welded to the mining scraper housing (1), both sides of the driving sprocket (15) and the driven sprocket (16) are equipped with brackets (17), the connection between the driving sprocket (15) and the driven sprocket (16) and the bracket (17) is equipped with a bearing (18), and an observation window (5) is installed on the outer wall of one side of the mining scraper housing (1), and the observation windows (5) are provided with two; The mining scraper housing (1) is magnetically connected to the magnet positioning groove (30) on the base (3) through the electromagnet (28) on the positioning frame (2); a wiring terminal (29) is provided at the upper end of the electromagnet (28), and the wiring terminal (29) passes through and extends to the outside of the positioning frame (2); a sponge layer (31) is provided on the inner wall of the magnet positioning groove (30); The output end of the reduction motor (8) passes through and extends to the interior of the driving mechanism housing (9), and is provided with a first transmission wheel (25); a second transmission wheel (26) is provided inside the driving mechanism housing (9), and the second transmission wheel (26) is fixedly connected to the roller shaft of the driving sprocket (15); the first transmission wheel (25) is transmission-connected to the second transmission wheel (26) via a transmission belt (27); A hydraulic knife valve seat (33) is installed on the lower surface of the base (3), and a valve plate is arranged inside the hydraulic knife valve seat (33); a valve plate storage bin (34) is arranged on one side of the hydraulic knife valve seat (33), and the valve plate storage bin (34) and the hydraulic knife valve seat (33) are an integrated structure; a hydraulic telescopic rod (35) is installed on the outer wall of the valve plate storage bin (34); the output end of the hydraulic telescopic rod (35) passes through the valve plate storage bin (34) and extends to the inside of the hydraulic knife valve seat (33), and is fixedly connected to the valve plate; a material storage box (32) is arranged below the hydraulic knife valve seat (33), and the material storage box (32) is threadedly connected to the reinforcement rod (10) through screws; a particle position sensor (36) is installed on the rear end surface of the mining scraper housing (1), and the sensing end of the particle position sensor (36) passes through and extends to the inside of the mining scraper housing (1); An inspection cover plate (21) is installed on the front end surface of the driving mechanism housing (9), and the inspection cover plate (21) is threadedly connected to the driving mechanism housing (9) via screws (24); A first discharge port (12) is installed at one end of the lower surface of the base (3), a second discharge port (13) is provided on one side of the first discharge port (12), and valves (14) are installed inside the first discharge port (12) and the second discharge port (13).

2. A mining scraper that is easy to maintain and overhaul according to claim 1, characterized in that: A metal protection net (22) is provided inside the inspection cover plate (21), and the metal protection net (22) is welded to the inspection cover plate (21).

3. A mining scraper that is easy to maintain and overhaul according to claim 2, characterized in that: A non-woven fabric isolation layer (23) is installed on the inner wall of the metal protection net (22), and the non-woven fabric isolation layer (23) is fixedly connected to the inner wall of the metal protection net (22).

4. The mining scraper that is easy to maintain and overhaul according to claim 1 is characterized in that: The scraper (20) comprises a high manganese steel core (201), a rubber shock absorbing ring (202) and a high manganese steel outer lining plate (203); the rubber shock absorbing ring (202) is arranged between the high manganese steel core (201) and the high manganese steel outer lining plate (203), and is fixedly connected to the high manganese steel core (201) and the high manganese steel outer lining plate (203); and polytetrafluoroethylene coatings (204) are provided on the outer walls of the high manganese steel core (201) and the high manganese steel outer lining plate (203).

5. A method for using a mining scraper that is easy to maintain and overhaul according to any one of claims 1 to 4, characterized in that: The following steps are involved: Step 1: Start the reduction motor (8), drive the first transmission wheel (25) to rotate through the output end of the reduction motor (8), and drive the second transmission wheel (26) and the driving sprocket (15) to rotate by means of the transmission belt (27), thereby driving the traction chain (19) to transmit on the driving sprocket (15) and the driven sprocket (16), and driving the scraper (20) to operate; Step 2: Pour the coal into the feed port (7) of the mining scraper housing (1), and transport the coal to the first discharge port (12) and the second discharge port (13) by the transmission action of the scraper (20); Step 3: During the transportation process, if the particle level sensor (36) senses that the coal is piled up high, it will send a signal to the relay to drive the hydraulic telescopic rod (35) to operate, open the hydraulic knife valve seat (33), and discharge the excess coal to avoid blockage; Step 4: When maintenance is required, first separate the output end of the reduction motor (8) from the drive mechanism housing (9), then remove the bolts (11) on the motor base, remove the reduction motor (8), and then turn off the electromagnet (28) at the connection. Use the handle (6) to separate the entire mining scraper housing (1) together with the drive mechanism housing (9) and the base (3), thereby exposing the internal transmission structure.

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