CN213536306U

CN213536306U - Mining scraper convenient to maintain and overhaul

Info

Publication number: CN213536306U
Application number: CN202022579574.2U
Authority: CN
Inventors: 连玲枝
Original assignee: Yuzhou Dingcheng Machinery Co ltd
Current assignee: Yuzhou Dingcheng Machinery Co ltd
Priority date: 2020-11-10
Filing date: 2020-11-10
Publication date: 2021-06-25
Anticipated expiration: 2030-11-10

Abstract

The utility model discloses a mining scraper blade machine convenient to maintain and overhaul relates to mining scraper blade machine technical field, divide into many parts for solving current mining scraper blade casing, and adopts a plurality of bolts and base fixed, comparatively loaded down with trivial details problem of dismouting when overhauing and maintaining. All install location frame around the outer wall of mining scraper blade casing, the lower surface mounting of mining scraper blade casing has the base, the supporting leg is installed all around to the base lower surface, and the supporting leg is provided with four, four install the anchor strut between the supporting leg, and anchor strut and supporting leg welded connection, gear motor is installed to the top of mining scraper blade casing, gear motor passes through bolt and mining scraper blade casing threaded connection.

Description

Mining scraper convenient to maintain and overhaul

Technical Field

The utility model relates to a mining scraper blade machine technical field specifically is a mining scraper blade machine convenient to maintain and overhaul.

Background

A conveyor which is dragged by a scraper chain and conveys bulk materials in a groove is called a scraper conveyor. The adjacent middle grooves of the scraper conveyor can be bent in a limited degree in the horizontal and vertical planes, so the scraper conveyor is called a bendable scraper conveyor. The working face conveyor with the machine body arranged at the intersection of the working face and the haulage roadway in a 90-degree bending mode is called a corner scraper conveyor. In the current coal mining face, the scraper conveyor not only serves to convey coal and materials, but also serves as a running track of a coal mining machine, so that the scraper conveyor becomes an indispensable main device in the modern coal mining process. The scraper conveyor can keep continuous operation, and the production can be normally carried out. Otherwise, the whole coal face will be in a production stop state, so that the whole production is interrupted. The main structure and the components of each type of scraper conveyor are basically the same, and the scraper conveyor consists of a nose part, a middle part, a tail part and the like.

However, the existing mining scraper shell is divided into multiple parts, and is fixed with a base by adopting a plurality of bolts, so that the existing mining scraper shell is complex to assemble and disassemble during maintenance; therefore, the existing requirements are not met, and the mining scraper conveyor convenient to maintain and repair is provided for the existing requirements.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a mining scraper blade machine convenient to maintain and overhaul to solve the current mining scraper blade casing that proposes in the above-mentioned background art and divide into many parts, and adopt a plurality of bolts and base fixed, the comparatively loaded down with trivial details problem of dismouting when overhauing and maintaining.

In order to achieve the above object, the utility model provides a following technical scheme: a mining scraper conveyor convenient to maintain and repair comprises a mining scraper conveyor shell, wherein positioning frames are installed on the periphery of the outer wall of the mining scraper conveyor shell, a base is installed on the lower surface of the mining scraper conveyor shell, supporting legs are installed on the periphery of the lower surface of the base, four supporting legs are arranged, reinforcing rods are installed among the four supporting legs and are in welded connection with the supporting legs, a speed reduction motor is installed above the mining scraper conveyor shell and is in threaded connection with the mining scraper conveyor shell through bolts, a driving mechanism shell is arranged on one side of the mining scraper conveyor shell and is of an integrated structure with the mining scraper conveyor shell, a feed inlet is formed in the rear end of the speed reduction motor and is installed on the mining scraper conveyor shell, a driving chain wheel is arranged at one end inside the mining scraper conveyor shell, the inside other end of mining scraper blade casing is provided with driven sprocket, the both sides of drive sprocket are passed through the tow chain and are connected with driven sprocket's both sides transmission, install the scraper blade between the tow chain, and the scraper blade is provided with a plurality of, all install the electro-magnet around the location frame lower surface, and the electro-magnet is provided with eight, all be provided with the magnet constant head tank around the base upper surface, and the magnet constant head tank is provided with eight, the handle is all installed at the both ends of mining scraper blade casing upper surface, and handle and mining scraper blade casing welded connection, the support is all installed to the both sides of drive sprocket and driven sprocket, the bearing is installed with the junction of support to drive sprocket and driven sprocket, install the observation window on one side outer wall of mining scraper blade casing, and the observation window is provided with two.

Preferably, the mining scraper casing body is connected with the magnet positioning groove on the base through the electromagnet on the positioning frame in a magnetic adsorption manner, the upper end of the electromagnet is provided with a wiring end, the wiring end penetrates through the outer portion of the positioning frame and extends to the outer portion of the positioning frame, and a sponge layer is arranged on the inner wall of the magnet positioning groove.

Preferably, the output end of the speed reduction motor penetrates through and extends to the inside of the driving mechanism shell, and is provided with a first driving wheel, a second driving wheel is arranged inside the driving mechanism shell and is fixedly connected with a roller shaft of the driving sprocket, and the first driving wheel is in transmission connection with the second driving wheel through a transmission belt.

Preferably, the lower surface mounting of base has hydraulic pressure sword disk seat, and the inside of hydraulic pressure sword disk seat is provided with the valve block, one side of hydraulic pressure sword disk seat is provided with valve block collecting storage, and valve block collecting storage and hydraulic pressure sword disk seat structure as an organic whole, install hydraulic telescoping rod on the outer wall of valve block collecting storage, hydraulic telescoping rod's output runs through valve block collecting storage and extends to the inside of hydraulic pressure sword disk seat, and with valve block fixed connection, the below of hydraulic pressure sword disk seat is provided with the stock box, and the stock box passes through screw and anchor strut threaded connection, install the grain level sensor on the rear end face of mining scraper blade casing body, and the induction end of grain level sensor runs through and extends to the inside of mining scraper blade casing body.

Preferably, the front end face of the driving mechanism shell is provided with an overhauling cover plate, and the overhauling cover plate is in threaded connection with the driving mechanism shell through a screw.

Preferably, a metal protective net is arranged inside the maintenance cover plate and is connected with the maintenance cover plate in a welding mode.

Preferably, a non-woven fabric isolation layer is installed on the inner wall of the metal protection net and fixedly connected with the inner wall of the metal protection net.

Preferably, the scraper blade includes outer welt of high manganese steel core, rubber damper ring and high manganese steel, the rubber damper ring sets up between outer welt of high manganese steel core and high manganese steel, and with outer welt fixed connection of high manganese steel core and high manganese steel, all be provided with the polytetrafluoroethylene coating on the outer wall of the outer welt of high manganese steel core and high manganese steel.

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.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses an adopt the electro-magnet to be connected mining scraper blade casing and base magnetic force absorption, and be provided with the sponge layer on the inner wall of magnet positioning groove, adopt the electro-magnet to adsorb the mode of connecting, when equipment operation, the accessible starts the firmness that the electro-magnet improves mining scraper blade casing and base are connected, it leads to the casing to connect not hard up to avoid actuating mechanism operation, and when needs are overhauld, it can separate casing and base to close the electro-magnet, expose inside transmission structure outward, conveniently overhaul maintenance work, the sponge layer that sets up at magnet positioning groove inner wall can be gone into the back at the electro-magnet card, rely on the spring action to press from both sides tight electro-magnet, certain fixed effect is played, make equipment need not to open the electro-magnet when not operating.

2. Through set up two discharge gates below the device, the material is more can be alleviated on the one hand, the condition of taking place the putty, on the other hand can conveniently divide partial shipment coal charge, for the security of guaranteeing the device, there is a grain position sensor at the internally mounted who carries the chamber, in the transportation process, if the grain position sensor senses the coal charge and piles up when higher, can send signal to relay, drive hydraulic telescopic link operation, open hydraulic knife disk seat, discharge unnecessary coal charge, realize intelligent accuse material effect, avoid the device too big because of the coal volume, the condition that leads to frequent overload and unexpected shut down takes place.

3. Through adopting the high manganese steel core, rubber damping ring and the outer welt of high manganese steel are as the scraper blade structure, wherein, rubber damping ring sets up between high manganese steel core and the outer welt of high manganese steel, when the colliery whereabouts strikes the scraper blade, rubber materials can play better shock attenuation effect, effectively prolong the holistic life of scraper blade, adopt the outer welt of high manganese steel core and high manganese steel as coal charge contact material, hardness is higher, has better wear-resisting and prevents scraping the performance, and be provided with the polytetrafluoroethylene coating on the outer wall of the outer welt of high manganese steel core and high manganese steel, it is one kind and is not stained with the coating, can avoid the condition that the coal ash is infected with to take place.

4. Through installing the maintenance apron on the preceding terminal surface at the actuating mechanism casing, the maintenance apron passes through screw and actuating mechanism casing threaded connection, when only carrying out the maintenance work of small-range maintenance to actuating mechanism, need not to overhaul the whole dismantlement of casing, only need can lift the screw on the maintenance apron off, it can to pull down the apron, the inside of maintenance apron is provided with the metal protection network, install the non-woven fabrics isolation layer on the inner wall of metal protection network, at the in-process that the apron was used, large granule impurity can be kept apart to the metal protection network, and the intensity of overhauing the apron and actuating mechanism's radiating effect has been guaranteed, and the non-woven fabrics isolation layer can further keep apart tiny dust impurity, because of it has better air permeability, so can not influence the radiating.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic front structural view of the present invention;

FIG. 3 is a schematic view of the interior of the scraper housing for mining according to the present invention;

fig. 4 is a schematic view of the external structure of the driving mechanism casing of the present invention;

fig. 5 is a schematic view of the internal structure of the driving mechanism casing of the present invention;

FIG. 6 is an enlarged view of the structure at the position A of the present invention;

FIG. 7 is a schematic view of the scraper structure of the present invention;

in the figure: 1. a mining scraper shell; 2. positioning the frame; 3. a base; 4. supporting legs; 5. an observation window; 6. a handle; 7. a feed inlet; 8. a reduction motor; 9. a drive mechanism housing; 10. a reinforcing rod; 11. a bolt; 12. a first discharge port; 13. a second discharge port; 14. a valve; 15. a drive sprocket; 16. a driven sprocket; 17. a support; 18. a bearing; 19. a drag chain; 20. a squeegee; 201. a high manganese steel core body; 202. a rubber shock-absorbing ring; 203. a high manganese steel outer liner; 204. a polytetrafluoroethylene coating; 21. overhauling the cover plate; 22. a metal protective net; 23. a non-woven fabric isolation layer; 24. a screw; 25. a first drive pulley; 26. a second transmission wheel; 27. a transmission belt; 28. an electromagnet; 29. a terminal; 30. a magnet positioning groove; 31. a sponge layer; 32. a material storage box; 33. a hydraulic knife valve seat; 34. a valve plate storage bin; 35. a hydraulic telescopic rod; 36. and a grain level sensor.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-7, the present invention provides an embodiment: a mining scraper conveyor convenient to maintain and repair comprises a mining scraper conveyor shell 1, positioning frames 2 are installed on the periphery of the outer wall of the mining scraper conveyor shell 1, a base 3 is installed on the lower surface of the mining scraper conveyor shell 1, supporting legs 4 are installed on the periphery of the lower surface of the base 3, four supporting legs 4 are arranged, rubber shock-absorbing pads are arranged at the bottoms of the supporting legs 4, the stability of the mining scraper conveyor can be improved, reinforcing rods 10 are installed among the four supporting legs 4, the reinforcing rods 10 are in welded connection with the supporting legs 4, the strength of the supporting legs 4 can be improved through the reinforcing rods 10, a speed reducing motor 8 is installed above the mining scraper conveyor shell 1, the speed reducing motor 8 is in threaded connection with the mining scraper conveyor shell 1 through bolts 11, the speed reducing motor 8 is fixed through the bolts 11, the speed reducing motor 8 is convenient to disassemble and assemble, a driving mechanism shell 9 is arranged on one, the driving mechanism shell 9 plays a role in protecting the driving mechanism, the rear end of the speed reducing motor 8 is provided with a feed inlet 7, the feed inlet 7 is installed on the mining scraper blade shell 1, one end inside the mining scraper blade shell 1 is provided with a driving sprocket 15, the other end inside the mining scraper blade shell 1 is provided with a driven sprocket 16, two sides of the driving sprocket 15 are in transmission connection with two sides of the driven sprocket 16 through a traction chain 19, a scraper 20 is installed between the traction chains 19, a plurality of the scrapers 20 are arranged, the traction chains 19 can drive the scrapers 20 to operate in the transmission process, the periphery of the lower surface of the positioning frame 2 is provided with eight electromagnets 28, the electromagnets 28 play a role in connecting the mining scraper blade shell 1 and the base 3 in a magnetic adsorption manner, the periphery of the upper surface of the base 3 is provided with eight magnet positioning grooves 30, and the magnet positioning grooves 30, handle 6 is all installed at the both ends of mining scraper blade casing 1 upper surface, and handle 6 and mining scraper blade casing 1 welded connection, support 17 is all installed to the both sides of drive sprocket 15 and driven sprocket 16, bearing 18 is installed with the junction of support 17 to drive sprocket 15 and driven sprocket 16, drive sprocket 15 and driven sprocket 16 rely on support 17 to be connected with 3 parts of base, make the casing can directly separate with the base, convenient the maintenance, install observation window 5 on one side outer wall of mining scraper blade casing 1, and observation window 5 is provided with two, the inside operation conditions of mining scraper blade casing can be looked over from the outside to observation window 5, the convenience is in time made when the card material and is handled.

Furthermore, the mining scraper shell body 1 is connected with the magnet positioning grooves 30 on the base 3 in a magnetic adsorption mode through the electromagnets 28 on the positioning frame 2, the wiring ends 29 are arranged at the upper ends of the electromagnets 28, the wiring ends 29 penetrate through and extend to the outside of the positioning frame 2, the sponge layers 31 are arranged on the inner walls of the magnet positioning grooves 30, the electromagnet 28 is connected in an adsorption mode, when the mining scraper shell body 1 is operated, the firmness of connection between the mining scraper shell body 1 and the base 3 can be improved by starting the electromagnets 28, the phenomenon that the shell body is connected loosely due to operation of a driving mechanism is avoided, when the mining scraper shell body needs to be overhauled, the shell body can be separated from the base 3 by closing the electromagnets 28, the operation is convenient and rapid, the sponge layers 31 arranged on the inner walls of the magnet positioning grooves 30 can clamp the electromagnets 28 tightly under the action of elasticity after, the energy is saved.

Further, the output end of the speed reducing motor 8 runs through and extends to the inside of the driving mechanism shell 9, and is provided with a first driving wheel 25, the inside of the driving mechanism shell 9 is provided with a second driving wheel 26, the second driving wheel 26 is fixedly connected with a roller shaft of the driving sprocket 15, the first driving wheel 25 is in transmission connection with the second driving wheel 26 through a driving belt 27, the speed reducing motor 8 can drive the first driving wheel 25 to rotate through the output end, and the second driving wheel 26 and the driving sprocket 15 are driven to rotate by the driving belt 27, so that the driving traction chain 19 is driven on the driving sprocket 15 and the driven sprocket 16.

Further, a hydraulic knife valve seat 33 is installed on the lower surface of the base 3, 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, the valve plate storage bin 34 and the hydraulic knife valve seat 33 are of an integral 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 penetrates through the valve plate storage bin 34 and extends into the hydraulic knife valve seat 33 and is fixedly connected with the valve plate, a storage box 32 is arranged below the hydraulic knife valve seat 33, the storage box 32 is in threaded connection with the reinforcing rod 10 through a screw, a grain level sensor 36 is installed on the rear end face of the mining scraper shell 1, the sensing end of the grain level sensor 36 penetrates through and extends into the mining scraper shell 1, the model of the grain level sensor 36 is SP-YC01S, during conveying, if the grain level sensor 36 senses that coal is accumulated highly, will send the signal to the relay, open hydraulic pressure sword disk seat 33, discharge unnecessary coal charge, avoid the putty.

Further, install on the preceding terminal surface of actuating mechanism casing 9 and overhaul apron 21, overhaul apron 21 and actuating mechanism casing 9 threaded connection through screw 24, overhaul apron 21 and adopt threaded connection's mounting means, the dismouting is convenient.

Further, the inside of overhauing apron 21 is provided with metal protection net 22, and metal protection net 22 and overhauing apron 21 welded connection, and large granule impurity can be kept apart to metal protection net 22 to the intensity of overhauing apron 21 and actuating mechanism's radiating effect has been guaranteed.

Further, install non-woven fabrics isolation layer 23 on the inner wall of metal protection net 22, and non-woven fabrics isolation layer 23 and metal protection net 22's inner wall fixed connection, non-woven fabrics isolation layer 23 can further keep apart the dust, because of it has better air permeability, so can not influence the radiating effect.

Further, the scraper 20 comprises a high manganese steel core 201, a rubber damping ring 202 and a high manganese steel outer lining plate 203, the rubber damping ring 202 is arranged between the high manganese steel core 201 and the high manganese steel outer lining plate 203, and is fixedly connected with the high manganese steel core 201 and the high manganese steel outer lining plate 203, polytetrafluoroethylene coatings 204 are arranged on the outer walls of the high manganese steel core 201 and the high manganese steel outer lining plate 203, the rubber material can play a good damping effect, the service life of the whole scraper 20 is effectively prolonged, the high manganese steel core 201 and the high manganese steel outer lining plate 203 are used as coal contact materials, the hardness is high, the scraper has good wear-resisting and scratch-resisting performances, the polytetrafluoroethylene coatings 204 are arranged on the outer walls of the high manganese steel core 201 and the high manganese steel outer lining plate 203, the scraper is a non-sticky coating, and the occurrence of the condition that coal ash is stained can be avoided.

Further, first discharge gate 12 is installed to the one end of base 3 lower surface, and one side of first discharge gate 12 is provided with second discharge gate 13, and valve 14 is all installed to the inside of first discharge gate 12 and second discharge gate 13, sets up two discharge gates and can effectively avoid the material more, takes place the condition of putty, and can make things convenient for the partial shipment.

The working principle is as follows: when the coal mining scraper conveyor is used, the speed reducing motor 8 is started, the output end of the speed reducing motor 8 drives the first driving wheel 25 to rotate, the second driving wheel 26 and the driving chain wheel 15 are driven to rotate by the driving belt 27, the traction chain 19 is driven to drive on the driving chain wheel 15 and the driven chain wheel 16, the scraper 20 is driven to operate, a coal mine is poured from the feeding hole 7 of the mining scraper conveyor shell 1 and is conveyed to the first discharging hole 12 and the second discharging hole 13 to be discharged by the driving action of the scraper 20, in the conveying process, if the grain level sensor 36 senses that the coal is highly accumulated, a signal is sent to the relay, the hydraulic telescopic rod 35 is driven to operate, the hydraulic knife valve seat 33 is opened, the redundant coal is discharged, the blockage is avoided, when the maintenance is needed, the output end of the speed reducing motor 8 is firstly separated from the driving mechanism shell 9, then the bolt 11 on the motor base is dismounted, and the speed reducing, then the electromagnet 28 at the joint is closed, and the whole mining scraper machine shell 1 with the driving mechanism shell 9 is separated from the base 3 by means of the lifting handle 6, so that the internal transmission structure is exposed.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a mining scraper blade machine convenient to maintenance overhauls, includes mining scraper blade casing (1), its characterized in that: the mining scraper blade casing (1) is characterized in that a positioning frame (2) is installed on the periphery of the outer wall of the mining scraper blade casing (1), a base (3) is installed on the lower surface of the mining scraper blade casing (1), supporting legs (4) are installed on the periphery of the lower surface of the base (3), four supporting legs (4) are arranged, reinforcing rods (10) are installed between the supporting legs (4), the reinforcing rods (10) are welded with the supporting legs (4), a speed reducing motor (8) is installed above the mining scraper blade casing (1), the speed reducing motor (8) is in threaded connection with the mining scraper blade casing (1) through bolts (11), a driving mechanism casing (9) is arranged on one side of the mining scraper blade casing (1), the driving mechanism casing (9) and the mining scraper blade casing (1) are of an integrated structure, and a feed inlet (7) is formed in the rear end of, and the feed inlet (7) is arranged on the mining scraper casing body (1), one end inside the mining scraper casing body (1) is provided with a driving chain wheel (15), the other end inside the mining scraper casing body (1) is provided with a driven chain wheel (16), two sides of the driving chain wheel (15) are in transmission connection with two sides of the driven chain wheel (16) through a drag chain (19), scraper blades (20) are arranged between the drag chains (19), the number of the scraper blades (20) is a plurality, electromagnets (28) are arranged around the lower surface of the positioning frame (2), the number of the electromagnets (28) is eight, magnet positioning grooves (30) are arranged around the upper surface of the base (3), the number of the magnet positioning grooves (30) is eight, handles (6) are arranged at two ends of the upper surface of the mining scraper casing body (1), and the handles (6) are in welded connection with the mining scraper casing body (1), support (17) are all installed to the both sides of drive sprocket (15) and driven sprocket (16), bearing (18) are installed with the junction of support (17) in drive sprocket (15) and driven sprocket (16), install observation window (5) on one side outer wall of mining scraper blade casing (1), and observation window (5) are provided with two.

2. The mining scraper conveyor convenient for maintenance and overhaul according to claim 1, characterized in that: the mining scraper casing body (1) is connected with magnet positioning groove (30) on base (3) through electro-magnet (28) on location frame (2) magnetic force absorption, the upper end of electro-magnet (28) is provided with wiring end (29), and wiring end (29) run through and extend to the outside of location frame (2), be provided with sponge layer (31) on the inner wall of magnet positioning groove (30).

3. The mining scraper conveyor convenient for maintenance and overhaul according to claim 1, characterized in that: the output end of the speed reducing motor (8) penetrates through and extends to the inside of the driving mechanism shell (9), a first driving wheel (25) is installed, a second driving wheel (26) is arranged inside the driving mechanism shell (9), the second driving wheel (26) is fixedly connected with a roller shaft of the driving chain wheel (15), and the first driving wheel (25) is in transmission connection with the second driving wheel (26) through a driving belt (27).

4. The mining scraper conveyor convenient for maintenance and overhaul according to claim 1, characterized in that: a hydraulic knife valve seat (33) is arranged on the lower surface of the base (3), 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), the valve plate storage bin (34) and the hydraulic knife valve seat (33) are of an integral 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) penetrates through the valve plate storage bin (34) and extends to the interior of the hydraulic knife valve seat (33), and is fixedly connected with the valve plate, a material storage box (32) is arranged below the hydraulic knife valve seat (33), the storage box (32) is in threaded connection with the reinforcing rod (10) through a screw, a grain position sensor (36) is installed on the rear end face of the mining scraper shell (1), and the sensing end of the grain position sensor (36) penetrates through and extends to the interior of the mining scraper shell (1).

5. The mining scraper conveyor convenient for maintenance and overhaul according to claim 1, characterized in that: install on the preceding terminal surface of actuating mechanism casing (9) and overhaul apron (21), overhaul apron (21) through screw (24) and actuating mechanism casing (9) threaded connection.

6. The mining scraper conveyor convenient for maintenance and overhaul according to claim 5, characterized in that: the inside of overhauing apron (21) is provided with metal protection net (22), and metal protection net (22) and overhauing apron (21) welded connection.

7. The mining scraper conveyor convenient for maintenance and overhaul according to claim 6, characterized in that: the inner wall of the metal protection net (22) is provided with a non-woven fabric isolation layer (23), and the non-woven fabric isolation layer (23) is fixedly connected with the inner wall of the metal protection net (22).

8. The mining scraper conveyor convenient for maintenance and overhaul according to claim 1, characterized in that: scraper blade (20) include high manganese steel core (201), rubber damper ring (202) and high manganese steel outer liner board (203), rubber damper ring (202) set up between high manganese steel core (201) and high manganese steel outer liner board (203), and with high manganese steel core (201) and high manganese steel outer liner board (203) fixed connection, all be provided with polytetrafluoroethylene coating (204) on the outer wall of high manganese steel core (201) and high manganese steel outer liner board (203).

9. The mining scraper conveyor convenient for maintenance and overhaul according to claim 1, characterized in that: first discharge gate (12) are installed to the one end of base (3) lower surface, one side of first discharge gate (12) is provided with second discharge gate (13), valve (14) are all installed to the inside of first discharge gate (12) and second discharge gate (13).