Intelligent paste filling system for coal mine

Abstract

The invention relates to the technical field of coal mine paste filling, in particular to an intelligent coal mine paste filling system which comprises a connecting frame, a driving mechanism and a pushing mechanism, the driving mechanism and the pushing mechanism are mounted on the connecting frame, the driving mechanism is connected with the pushing mechanism, and a first stirring mechanism is mounted on the pushing mechanism; a reversing mechanism is mounted in the first stirring mechanism, and a lubricating mechanism is mounted on the pushing mechanism; the material pushing mechanism comprises a second support, the second support is installed at one end of a connecting frame, the lubricating mechanism comprises a supporting frame, a conveying belt is wound around the outer sides of two driven shafts and a driving shaft, a side plate is installed on the other side of a bottom shell, and lubricating oil on the conveying belt is smeared to the top of a push rod. The abrasion of the push rod is reduced, the heat dissipation of the push rod is facilitated, and the extrusion deformation of the conveying belt caused by the conflict between the conveying belt and the push rod in the moving process is avoided through intermittent smearing.

Description

Technical Field

[0001] This invention relates to the field of coal mine paste filling technology, specifically to an intelligent coal mine paste filling system. Background Technology

[0003] Coal mine paste filling technology refers to processing waste materials such as coal gangue, fly ash, slag, inferior soil, and municipal solid waste near the coal mine into a paste-like slurry with no critical flow velocity and no need for dehydration on the ground. Then, it is transported underground to fill the mined-out area using filling pumps or gravity through pipelines. This technology controls the damage and deformation of the overlying strata caused by mining, keeping the deformation of surface buildings and structures within a safe and permissible range. This allows for coal mining without relocating villages under buildings, fully recovering coal resources, and protecting the ecological environment of the mining area. Filling is generally carried out using filling pumps.

[0004] However, in current coal mine paste filling processes, the slurry is poured into a mixer for mixing. A filling pump is connected to one side of the mixer, which pushes the paste from inside the mixer into a conveying pipeline, and finally delivers it to the goaf for filling. The filling pump typically uses a single piston to convey the material, which can hold a small amount of paste. Moreover, after a single piston is pushed out, it needs to be reset and refilled, resulting in poor continuity and slow conveying speed. Furthermore, the hydraulic oil pump lacks an internal lubrication system during reciprocating motion. Continuous operation can easily cause wear on sliding parts and severe overheating of the sliding parts of the cylinder, leading to component damage. The mixing mechanism inside the mixer can only mix the paste in one direction, either radially or axially, resulting in uneven mixing within the mixer and affecting the solidification of the paste. Summary of the Invention

[0006] To address the problems in the existing technology, the present invention provides an intelligent paste filling system for coal mines.

[0007] The technical solution adopted by this invention to solve its technical problem is: an intelligent paste filling system for coal mines, comprising a connecting frame, a driving mechanism and a pushing mechanism mounted on the connecting frame, wherein the driving mechanism is connected to the pushing mechanism, a first stirring mechanism is mounted on the pushing mechanism, a reversing mechanism is installed inside the first stirring mechanism, and a lubrication mechanism is mounted on the pushing mechanism; the pushing mechanism includes a second support, a second support is mounted at one end of the connecting frame, the lubrication mechanism includes a support frame, two support frames are fixedly connected to the second support, a protective cover is fixedly connected between the two support frames, a bottom shell is mounted at the bottom of the protective cover, and the center of the bottom shell... A drive shaft is rotatably connected to the protective cover. A first motor is installed on one side of the protective cover, and the output end of the first motor is fixed to the drive shaft. Two driven shafts are rotatably connected to the inside of the protective cover. A conveyor belt is wound around the two driven shafts and the outside of the drive shaft. A side plate is installed on the other side of the bottom shell. A slide plate is slidably connected to the side plate. A pressure shaft that penetrates the protective cover is rotatably connected to the slide plate. The pressure shaft is located at the top of the conveyor belt. One end of the drive shaft is fixedly connected to a connecting shaft that penetrates the slide plate. A cam is fixed to one end of the connecting shaft. A limiting rod that is slidably connected to the side plate is fixedly connected to the slide plate, which has an inverted F-shaped cross-section. A spring is clamped between the slide plate and the side plate.

[0008] Specifically, the drive shaft and the two driven shafts are arranged in an isosceles triangle, and the bottom shell located outside the drive shaft has a V-shaped cross-section.

[0009] Specifically, the lubrication mechanism also includes protective nets, and two protective nets are installed opposite each other on the protective cover.

[0010] Specifically, the pushing mechanism also includes an oil circuit controller. The oil circuit controller is installed on the second bracket. Both ends of the oil circuit controller are connected to oil pipes. Two plug-type hydraulic oil pumps are installed on the protective cover. The two plug-type hydraulic oil pumps are connected to the oil circuit controller through oil pipes. Push rods are slidably connected inside the two plug-type hydraulic oil pumps. The push rods slide inside the protective cover.

[0011] Specifically, the drive mechanism includes a first bracket, the other end of the connecting frame is fixedly connected to the first bracket, an oil tank is installed on the first bracket, the oil circuit controller is connected to the oil tank through a connecting pipe, an explosion-proof motor is installed on the first bracket, the explosion-proof motor is connected to the oil tank, and two coolers are installed opposite each other on the first bracket.

[0012] Specifically, the first stirring mechanism includes a mixer, the mixer is mounted on the second bracket, and two rotary hydraulic cylinders connected to the oil circuit controller are mounted opposite each other on both sides of the mixer, with stirring blades mounted on opposite ends of the two rotary hydraulic cylinders.

[0013] Specifically, the reversing mechanism includes two connection ports. One side of the mixer has a connection port that communicates with two plug-type hydraulic oil pumps, and the other side of the mixer is connected to a slurry outlet pipe. A flexible reversing S-valve that communicates with the slurry outlet pipe is rotatably connected inside the mixer. The flexible reversing S-valve is connected to one of the connection ports. A connecting block is fixedly connected to the flexible reversing S-valve, and a gear shaft is inserted into the connecting block. The gear shaft is rotatably connected to the mixer. A drive block is inserted into the gear shaft located outside the mixer. Two hydraulic rods are rotatably connected to the drive block relative to the mixer.

[0014] Specifically, the reversing mechanism also includes a spectacle plate, and the inner wall of the mixer is bonded with spectacle plates corresponding to the two connection ports.

[0015] Specifically, the mixer is equipped with a second mixing mechanism, which includes a top frame. The top frame is fixedly connected inside the mixer, and a second motor is installed on the top frame. A rotating plate is fixedly connected to the output end of the second motor, and multiple arc-shaped blades are fixed in a circular array at the bottom of the rotating plate.

[0016] Specifically, the diameter of the rotating plate is smaller than the distance between the two stirring blades, and the surface of the rotating plate is provided with multiple holes.

[0017] The beneficial effects of this invention are: (1) The intelligent paste filling system for coal mines described in this invention has a drive mechanism installed on one side of the connecting frame and a pushing mechanism installed on the other side. The pushing mechanism is connected to the first stirring mechanism, and the first stirring mechanism has a reversing mechanism connected to the pushing mechanism. After the slurry enters the stirring mechanism, it is stirred by the first stirring mechanism. At this time, the pushing mechanism can be controlled by the drive mechanism to move towards the mixer. There are two plug-type hydraulic oil pumps. When pushing the paste mixed inside the mixer, one push rod retracts to feed the paste, and the other push rod extends to push the paste into the flexible reversing S valve, thus realizing continuous feeding. The pushing mechanism and the reversing mechanism cooperate, and the flexible reversing S valve always corresponds to the push rod that is pushing the paste, thus realizing continuous feeding without waiting, improving the speed of paste transportation and avoiding downtime.

[0018] (2) The intelligent paste filling system for coal mines described in this invention has a lubrication mechanism installed on the second support. When the two push rods push the paste, they will pass through the inside of the protective cover. Since the push rods need to be lubricated to reduce wear and heat dissipation during reciprocating work, lubricating oil can be added to the inside of the bottom shell. The first motor is started to drive the drive shaft to drive the conveyor belt to rotate along the outside of the drive shaft and the driven shaft. There is lubricating oil inside the bottom shell. When the conveyor belt rotates, it will stick to the lubricating oil inside the bottom shell. As the conveyor belt moves, the cam at the end of the connecting shaft will intermittently press the slide plate, which will also realize that the pressure shaft will intermittently press the conveyor belt to fit with the two push rods, so that the lubricating oil on the conveyor belt is applied to the top of the push rod. Since the lubricating oil is fluid, it will flow to the entire push rod, complete the lubrication, reduce the wear of the push rod and facilitate the heat dissipation of the push rod. The intermittent application avoids the conveyor belt from being squeezed and deformed when it moves with the push rod.

[0019] (3) The intelligent paste filling system for coal mines described in this invention has a second stirring mechanism on the first stirring mechanism. After the slurry enters the interior of the mixer, two rotating hydraulic cylinders drive two stirring blades to achieve radial stirring of the slurry. The second motor is started to rotate the rotating plate and drive the blades to stir the slurry in the axial and horizontal directions, so that the paste is stirred more evenly and is conducive to filling. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the connection structure of the second bracket, support frame and protective cover of the present invention; Figure 3 This is a schematic diagram of the connection structure of the embossed hydraulic oil pump and mixer of the present invention. Figure 4 This is a schematic diagram of the connection structure of the mixer, hydraulic rod and drive block of the present invention; Figure 5 This is a schematic diagram of the connection structure of the mixer, mixing blade and rotary hydraulic cylinder of the present invention. Figure 6 This is a schematic diagram of the connection structure of the connecting block, gear shaft, and flexible reversing S-valve of the present invention. Figure 7 This is a schematic diagram of the connection structure of the flexible reversing S-valve and connecting block of the present invention; Figure 8 This is a schematic diagram of the connection structure of the rotating plate and blades of the present invention; Figure 9 This is a schematic diagram of the connection structure of the protective cover, side plate and sliding plate of the present invention; Figure 10This is a schematic diagram of the connection structure of the drive shaft, driven shaft, and conveyor belt of the present invention; Figure 11 This is a schematic diagram of the connection structure of the bottom shell, drive shaft and conveyor belt of the present invention; Figure 12 This is a schematic diagram of the connection structure of the slide plate, drive shaft and cam of the present invention.

[0022] In the diagram: 1. Connecting frame; 2. Drive mechanism; 201. First support; 202. Oil tank; 203. Explosion-proof motor; 204. Connecting pipe; 205. Cooler; 3. Pushing mechanism; 301. Second support; 302. Bolt-type hydraulic oil pump; 303. Oil pipe; 304. Oil circuit controller; 305. Push rod; 4. Lubrication mechanism; 401. Protective cover; 402. Support frame; 403. Protective net; 404. Bottom shell; 405. Side plate; 406. Slide plate; 407. Coupling shaft; 408. Spring; 409. Cam; 410. Pressure shaft; 411. Drive shaft; 412. Limiting rod; 413. Conveyor belt; 414. First motor; 415. Driven shaft; 5. First mixing mechanism; 501. Mixer; 502. Rotary hydraulic cylinder; 503. Mixing blade; 6. Second mixing mechanism; 601. Top frame; 602. Second motor; 603. Rotating plate; 604. Blade; 7. Reversing mechanism; 701. Slurry outlet pipe; 702. Hydraulic rod; 703. Drive block; 704. Flexible reversing S-valve; 705. Connecting block; 706. Gear shaft; 707. Connecting port; 708. Spectacle plate. Detailed Implementation

[0024] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0025] like Figures 1-12As shown, the intelligent paste filling system for coal mines of the present invention includes a connecting frame 1, a drive mechanism 2 and a pushing mechanism 3 mounted on the connecting frame 1. The drive mechanism 2 is connected to the pushing mechanism 3. A first stirring mechanism 5 is mounted on the pushing mechanism 3. A reversing mechanism 7 is installed inside the first stirring mechanism 5. A lubrication mechanism 4 is mounted on the pushing mechanism 3. The pushing mechanism 3 includes a second bracket 301. A second bracket 301 is mounted on one end of the connecting frame 1. The lubrication mechanism 4 includes a support frame 402. Two support frames 402 are fixedly connected to the second bracket 301. A protective cover 401 is fixedly connected between the two support frames 402. A bottom shell 404 is mounted on the bottom of the protective cover 401. A drive shaft 411 is rotatably connected to the center of the bottom shell 404. A first motor 414 is mounted on one side of the protective cover 401. The output end of the first motor 414 is fixed to the drive shaft 411. Two lubrication mechanisms 414 are rotatably connected to the inside of the protective cover 401. Two driven shafts 415 are wound with a conveyor belt 413 around the outside of the drive shaft 411. A side plate 405 is installed on the other side of the bottom shell 404. A slide plate 406 is slidably connected to the side plate 405. A pressure shaft 410 penetrating the protective cover 401 is rotatably connected to the slide plate 406. The pressure shaft 410 is located on top of the conveyor belt 413. One end of the drive shaft 411 is fixedly connected to a connecting shaft 407 penetrating the slide plate 406. One end of the connecting shaft 407 is fixed with a protrusion. The wheel 409 has an inverted F-shaped cross-section. A limiting rod 412 is fixedly connected to the sliding plate 406 and slidably connected to the side plate 405. A holding spring 408 is clamped between the sliding plate 406 and the side plate 405. The drive shaft 411 and the two driven shafts 415 are arranged in an isosceles triangle, and the bottom shell 404 located outside the drive shaft 411 has a V-shaped cross-section. The lubrication mechanism 4 also includes a protective net 403, and two protective nets 403 are installed opposite each other on the protective cover 401.Lubricating oil is added to the inside of the bottom shell 404. As the two push rods 305 slide, they pass inside the protective cover 401, activating the first motor 414 located on the side wall of the bottom shell 404 to rotate the drive shaft 411. Since the drive shaft 411 and driven shaft 415 are toothed shafts, the conveyor belt 413 also rotates. The conveyor belt 413, immersed in lubricating oil, does not slip when rotating. As the conveyor belt 413 rotates, it absorbs the lubricating oil inside the bottom shell 404, thus achieving oil circulation. The oil-laden conveyor belt 413 also passes over the tops of the two push rods 305. When the drive shaft 411 rotates... This also drives the coupling 407 to rotate, which in turn drives the cam 409 to rotate. Since the coupling 407 passes through the slide plate 406, and the slide plate 406 has an inverted F-shaped cross-section, the cam 409 intermittently presses down on the slide plate 406 as it rotates. The spring 408 then resets the slide plate 406. When the slide plate 406 is pressed down, it causes the pressure shaft 410 to descend. During descent, the conveyor belt 413 is pressed against the push rod 305. The lubricating oil in the conveyor belt 413 lubricates the push rod 305, reducing wear and facilitating heat dissipation. The fluidity of the lubricating oil allows it to flow from the top to the bottom of the push rod 305, providing comprehensive lubrication.

[0026] Specifically, such as Figure 1 , Figure 2 , Figure 3 Figure 4 , Figure 5 Figure 6 and Figure 7As shown, the pushing mechanism 3 also includes an oil circuit controller 304. The oil circuit controller 304 is mounted on the second bracket 301. Both ends of the oil circuit controller 304 are connected to oil pipes 303. Two plug-type hydraulic oil pumps 302 are mounted on the protective cover 401. The two plug-type hydraulic oil pumps 302 are connected to the oil circuit controller 304 through oil pipes 303. Push rods 305 are slidably connected inside each of the two plug-type hydraulic oil pumps 302. The push rods 305 slide inside the protective cover 401. The driving mechanism 2 includes a first support... The first support 201 is fixedly connected to the other end of the connecting frame 1. An oil tank 202 is mounted on the first support 201. The oil circuit controller 304 is connected to the oil tank 202 via a connecting pipe 204. An explosion-proof motor 203 is mounted on the first support 201 and connected to the oil tank 202. Two coolers 205 are mounted opposite each other on the first support 201. The first stirring mechanism 5 includes a mixer 501, which is mounted on the second support 301. Two rotary hydraulic cylinders 502 connected to the oil circuit controller 304 are installed opposite each other on both sides of the mixer 501. Agitator blades 503 are installed at the opposite ends of each of the two rotary hydraulic cylinders 502. The reversing mechanism 7 includes two connection ports 707. One side of the mixer 501 has a connection port 707 communicating with two plug-type hydraulic oil pumps 302. The other side of the mixer 501 is connected to a slurry outlet pipe 701. A flexible reversing S-valve 704 communicating with the slurry outlet pipe 701 is rotatably connected inside the mixer 501. The flexible reversing S-valve 704 is connected to... A connection port 707 is connected, and a connecting block 705 is fixedly connected to the flexible reversing S-valve 704. A gear shaft 706 is inserted into the connecting block 705. The gear shaft 706 is rotatably connected to the mixer 501. A drive block 703 is inserted into the gear shaft 706 located outside the mixer 501. Two hydraulic rods 702 are rotatably connected to the drive block 703 and the mixer 501. The reversing mechanism 7 also includes a spectacle plate 708. A spectacle plate 708 corresponding to the two connection ports 707 is adhered to the inner wall of the mixer 501.When filling the goaf in a mining operation, raw materials such as coal gangue and binders are added to the mixer 501. The hydraulic controller 304 controls two rotary hydraulic cylinders 502 to rotate, which in turn drive the mixing blades 503 to agitate the slurry inside the mixer 501 into a paste. At this time, the hydraulic controller 304 also controls two plug-type hydraulic pumps 302 to operate. Inside each pump 302, push rods 305 retract and extend, respectively. When push rod 305 retracts, it feeds the paste from the mixer 501; when it extends, it feeds the paste from the other pump 302. In other words, the hydraulic controller 304 controls the push rods 305 inside the two pumps 302 to alternately extend and retract, achieving continuous feeding. Regardless of which pump's push rod 305 extends, the oil... The road controller 304 can also control the two hydraulic rods 702 to open and close, respectively, thus enabling the two hydraulic rods 702 to drive the drive block 703 to swing. When the drive block 703 swings, the gear shaft 706 rotates, causing the connecting block 705 to swing. Since one end of the flexible reversing S valve 704 rotates between the mixer 501, when the connecting block 705 swings, the other end of the flexible reversing S valve 704 is alternately connected to the two connecting ports 707. The swinging end of the flexible reversing S valve 704 always corresponds to the push rod 305 that is being pushed out, thus realizing the reversal of the flexible reversing S valve 704. This alternately pushes out the paste inside the two plug-type hydraulic oil pumps 302, realizing continuous delivery of the paste, increasing the delivery speed, and preventing downtime. The oil tank 202 located on the first support 201 enables the return of oil from the oil pipe 303, and the cooler 205 cools the lubricating oil inside the oil pipe 303.

[0027] Specifically, such as Figure 1 , Figure 2 Figure 3 , Figure 4 and Figure 8As shown, a second stirring mechanism 6 is installed on the mixer 501. The second stirring mechanism 6 includes a top frame 601, which is fixedly connected inside the mixer 501. A second motor 602 is installed on the top frame 601, and a rotating plate 603 is fixedly connected to the output end of the second motor 602. Multiple arc-shaped blades 604 are fixedly arranged in a circular array at the bottom of the rotating plate 603. The diameter of the rotating plate 603 is smaller than the distance between two stirring blades 503, and the surface of the rotating plate 603 is provided with multiple holes. (The last sentence appears to be incomplete and possibly refers to a specific process involving coal gangue and adhesives.) After fillers such as volatile organic compounds enter the mixer 501, the second motor 602 is started to rotate the rotating plate 603. The rotating plate 603 drives multiple blades 604 to rotate, which stirs the slurry inside the mixer 501 in a horizontal and circumferential direction, making the slurry more uniform and improving the adhesion of the paste. The rotating plate 603 has holes on its surface, which facilitates the feeding of the slurry and does not affect the feeding speed. The blades 604 are located on top of the flexible reversing S valve 704, so they will not affect its swing. The rotating plate 603 will not affect the rotation of the two stirring blades 503.

[0028] In use, this invention begins by filling the goaf in a mining operation with raw materials such as coal gangue and a binder, which are then added to the mixer 501. The hydraulic controller 304 controls two rotary hydraulic cylinders 502 to rotate, which in turn drive the mixing blades 503 to agitate the slurry inside the mixer 501 into a paste. Simultaneously, the hydraulic controller 304 controls two plug-type hydraulic pumps 302 to operate. Inside each pump, push rods 305 extend and retract, one retracting while the other extends. The retraction of push rod 305 feeds the paste from the mixer 501, while the extension of push rod 305 feeds the paste from the other pump. In other words, the hydraulic controller 304 controls the push rods 305 inside the two pumps 302 to alternately extend and retract, achieving continuous feeding. Regardless of which pump's push rod 305 extends or retracts, continuous feeding is achieved. 5. When the oil circuit controller 304 is pushed out, it can also control the two hydraulic rods 702 to open one and close the other, which realizes that the two hydraulic rods 702 drive the drive block 703 to swing. When the drive block 703 swings, the gear shaft 706 rotates and drives the connecting block 705 to swing. Since one end of the flexible reversing S valve 704 rotates between the mixer 501, when the connecting block 705 swings, the other end of the flexible reversing S valve 704 is adjusted to alternately connect with the two connecting ports 707. And the swing end of the flexible reversing S valve 704 always corresponds to the push rod 305 that is being pushed out, which realizes the reversal of the flexible reversing S valve 704. The paste inside the two plug-type hydraulic oil pumps 302 is pushed out alternately, realizing the continuous delivery of the paste, increasing the delivery speed, and preventing downtime. The oil tank 202 located on the first support 201 realizes the return of oil from the oil pipe 303, and the cooler 205 cools the lubricating oil inside the oil pipe 303. Then, after the coal gangue and adhesive filler materials enter the mixer 501, the second motor 602 is started to rotate the rotating plate 603. After the rotating plate 603 rotates, it drives multiple blades 604 to rotate, which stirs the slurry inside the mixer 501 in the horizontal and circumferential directions, making the slurry more uniform and improving the adhesion of the paste. The rotating plate 603 has holes on its surface, which facilitates the feeding of the slurry and does not affect the feeding speed. The blades 604 are located on top of the flexible reversing S valve 704, which does not affect its swing. The rotating plate 603 does not affect the rotation of the two stirring blades 503. Finally, lubricating oil is added to the inside of the bottom shell 404. As the two push rods 305 slide, they pass inside the protective cover 401, activating the first motor 414 located on the side wall of the bottom shell 404 to rotate the drive shaft 411. Since the drive shaft 411 and driven shaft 415 are toothed shafts, the conveyor belt 413 also rotates. The conveyor belt 413, immersed in lubricating oil, will not slip when rotating. As the conveyor belt 413 rotates, it absorbs the lubricating oil inside the bottom shell 404, thus achieving oil circulation. The oil-laden conveyor belt 413 also passes over the tops of the two push rods 305, causing the drive shaft 411 to rotate. When the device is in motion, it will also drive the connecting shaft 407 to rotate, and the connecting shaft 407 will also drive the cam 409 to rotate. Since the connecting shaft 407 passes through the slide plate 406 and the cross-section of the slide plate 406 is an inverted F-shaped structure, the cam 409 will intermittently press the slide plate 406 when it rotates. The spring 408 will reset the slide plate 406. When the slide plate 406 is pressed, it will drive the pressure shaft 410 to descend. When it descends, it will press the conveyor belt 413 into contact with the push rod 305. The lubricating oil in the conveyor belt 413 will lubricate the push rod 305, reduce wear and facilitate heat dissipation. The lubricating oil has fluidity and will flow from the top side to the bottom side of the push rod 305, providing comprehensive lubrication.

[0029] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0030] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An intelligent paste filling system for coal mines, characterized in that, It includes a connecting frame (1), a drive mechanism (2) mounted on the connecting frame (1) and a pushing mechanism (3). The drive mechanism (2) is connected to the pushing mechanism (3). A first stirring mechanism (5) is mounted on the pushing mechanism (3). A reversing mechanism (7) is installed inside the first stirring mechanism (5). A lubrication mechanism (4) is mounted on the pushing mechanism (3). The pushing mechanism (3) includes a second bracket (301), and the second bracket (301) is installed at one end of the connecting frame (1). The lubrication mechanism (4) includes a support frame (402). Two support frames (402) are fixedly connected to the second bracket (301). A protective cover (401) is fixedly connected between the two support frames (402). A bottom shell (404) is installed at the bottom of the protective cover (401). A drive shaft (411) is rotatably connected at the center of the bottom shell (404). A first motor (414) is installed on one side of the protective cover (401). The output end of the first motor (414) is fixed to the drive shaft (411). Two driven shafts (415) are rotatably connected inside the protective cover (401). 415) A conveyor belt (413) is wound around the outside of the drive shaft (411). A side plate (405) is installed on the other side of the bottom shell (404). A slide plate (406) is slidably connected to the side plate (405). A pressure shaft (410) that penetrates the protective cover (401) is rotatably connected to the slide plate (406). The pressure shaft (410) is located at the top of the conveyor belt (413). A connecting shaft (407) that penetrates the slide plate (406) is fixedly connected to one end of the drive shaft (411). A cam (409) is fixed to one end of the connecting shaft (407). A limiting rod (412) that is slidably connected to the side plate (405) is fixedly connected to the slide plate (406) which has an inverted F-shaped cross section. A holding spring (408) is clamped between the slide plate (406) and the side plate (405).

2. The intelligent paste filling system for coal mines according to claim 1, characterized in that: The drive shaft (411) and the two driven shafts (415) are arranged in an isosceles triangle, and the bottom shell (404) located outside the drive shaft (411) has a V-shaped cross section.

3. The intelligent paste filling system for coal mines according to claim 1, characterized in that: The lubrication mechanism (4) also includes a protective net (403), and two protective nets (403) are installed opposite each other on the protective cover (401).

4. The intelligent paste filling system for coal mines according to claim 1, characterized in that: The pushing mechanism (3) also includes an oil circuit controller (304). The oil circuit controller (304) is installed on the second bracket (301). Both ends of the oil circuit controller (304) are connected to oil pipes (303). Two plug-type hydraulic oil pumps (302) are installed on the protective cover (401). The two plug-type hydraulic oil pumps (302) are connected to the oil circuit controller (304) through oil pipes (303). The interior of each of the two plug-type hydraulic oil pumps (302) is slidably connected to a push rod (305). The push rod (305) slides inside the protective cover (401).

5. The intelligent paste filling system for coal mines according to claim 4, characterized in that: The drive mechanism (2) includes a first bracket (201), the other end of the connecting frame (1) is fixedly connected to the first bracket (201), an oil tank (202) is installed on the first bracket (201), the oil circuit controller (304) is connected to the oil tank (202) through a connecting pipe (204), an explosion-proof motor (203) is installed on the first bracket (201), the explosion-proof motor (203) is connected to the oil tank (202), and two coolers (205) are installed opposite each other on the first bracket (201).

6. The intelligent paste filling system for coal mines according to claim 4, characterized in that: The first stirring mechanism (5) includes a mixer (501), and the mixer (501) is mounted on the second bracket (301). Two rotary hydraulic cylinders (502) connected to the oil circuit controller (304) are mounted opposite each other on both sides of the mixer (501). Stirring blades (503) are mounted on the opposite ends of the two rotary hydraulic cylinders (502).

7. The intelligent paste filling system for coal mines according to claim 6, characterized in that: The reversing mechanism (7) includes two connection ports (707). One side of the mixer (501) is provided with a connection port (707) that communicates with two plug-type hydraulic oil pumps (302). The other side of the mixer (501) is connected to a slurry outlet pipe (701). The inside of the mixer (501) is rotatably connected to a flexible reversing S valve (704) that communicates with the slurry outlet pipe (701). The flexible reversing S valve (704) is connected to one of the connection ports (707). A connecting block (705) is fixedly connected to the flexible reversing S valve (704). A gear shaft (706) is inserted into the connecting block (705). The gear shaft (706) is rotatably connected to the mixer (501). A drive block (703) is inserted into the gear shaft (706) located outside the mixer (501). The drive block (703) is rotatably connected to the mixer (501) with two hydraulic rods (702).

8. The intelligent paste filling system for coal mines according to claim 7, characterized in that: The reversing mechanism (7) also includes a spectacle plate (708), and the inner wall of the mixer (501) is bonded with spectacle plates (708) corresponding to the two connection ports (707).

9. The intelligent paste filling system for coal mines according to claim 6, characterized in that: The mixer (501) is equipped with a second stirring mechanism (6), which includes a top frame (601). The top frame (601) is fixedly connected inside the mixer (501). A second motor (602) is installed on the top frame (601). A rotating plate (603) is fixedly connected to the output end of the second motor (602). Multiple arc-shaped blades (604) are fixedly arranged in a circular array at the bottom of the rotating plate (603).

10. The intelligent paste filling system for coal mines according to claim 9, characterized in that: The diameter of the rotating plate (603) is smaller than the distance between the two stirring blades (503), and the surface of the rotating plate (603) is provided with multiple holes.

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