Vertical adjustable discharging mechanism for coal preparation plant

Abstract

The utility model discloses a vertical adjustable unloading mechanism for a coal preparation plant, belongs to the technical field of unloaders, and aims to facilitate vertical adjustment of an unloading assembly. Comprising a conveying device and a discharging assembly stretching across the conveying device, a first fixing assembly is arranged on the right side of the conveying device, a second fixing assembly is arranged on the left side of the conveying device, and a vertical adjusting assembly stretching out and drawing back in the vertical direction is arranged on the second fixing assembly; the right end of the discharging assembly is hinged to the first fixing assembly, the left end of the discharging assembly is connected to the vertical adjusting assembly, and the discharging assembly is driven by the vertical adjusting assembly to rotate around the second fixing assembly. The discharging assembly rotates around the first fixing assembly to be lifted away from or close to the conveying device by starting the vertical adjusting assembly, so that the discharging assembly is controlled to conduct discharging work, the discharging assembly is controlled to be away from or close to the conveying device through lifting of the vertical adjusting assembly, manual lifting of the discharging assembly is avoided, the labor intensity is reduced, and the working efficiency is improved. And operation is convenient, and the problem that the scraper of the unloader is manually adjusted is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of unloaders, specifically to a direction adjustment mechanism for a vertical unloader in a coal preparation plant. Background Art

[0002] The unloader in a coal preparation plant is a device specifically used for unloading and distributing materials from a belt conveyor. In a coal preparation plant, the unloader is mainly used to handle materials such as coal, and unload part or all of the coal for subsequent transportation, processing or storage. The existing unloader includes a unloading component spanning above the conveying device. During use, both ends of the unloading component are supported above the conveying device by a support fixing component. When the unloading component needs to be replaced due to wear after long-term use, the unloading component is manually lifted by workers, and then the unloading component is replaced. Manually adjusting the unloading component up and down is labor-intensive and inconvenient to replace. Content of the Utility Model

[0003] The purpose of the utility model is to provide a vertically adjustable unloading mechanism for a coal preparation plant, which is convenient for the up and down adjustment and replacement of the unloading component, and saves the labor intensity of up and down adjustment.

[0004] The technical solution adopted by the utility model is: a vertically adjustable unloading mechanism for a coal preparation plant, including a conveying device and a unloading component spanning above the conveying device. A first fixing component is arranged on the right side of the conveying device, and a second fixing component is arranged on the left side. A vertical adjusting component that can expand and contract vertically is arranged on the second fixing component; the right end of the unloading component is hinged to the first fixing component, and the left end is connected to the vertical adjusting component, and the unloading component is driven by the vertical adjusting component to rotate around the second fixing component.

[0005] Further, the conveying device includes a belt conveyor and a material guiding chute; the material guiding chute is arranged on the right side of the belt conveyor, and the material guiding chute is centered on the unloading port of the unloading component.

[0006] Further, the first fixing component includes a first fixing plate, a second fixing plate and a third fixing plate; the first fixing plate is fixed to the right end of the belt conveyor; the second fixing plate is fixed to the right end of the first fixing plate; the third fixing plate is vertically fixed above the second fixing plate. There are two third fixing plates, and the two third fixing plates are arranged oppositely along the longitudinal direction, and a spacing for accommodating the unloading component is arranged between the two third fixing plates; the right end of the unloading component extends into the spacing between the two third fixing plates and is hinged to the third fixing plate.

[0007] Further, the unloading component includes a rotating arm, a first fixing column and a first ear plate; the first fixing column is fixed parallel to the rotating arm at the top of the left end of the rotating arm; the first ear plate is fixed to the top of the first fixing column.

[0008] Furthermore, an elastic shock absorber is provided on the second fixing plate; the rotating arm is located above the shock absorber, and the bottom end of the rotating arm is in contact with the telescopic rod of the shock absorber.

[0009] Furthermore, the cross-section of the rotating arm is in a groove shape, and the groove opening faces the running direction of the belt conveyor.

[0010] Furthermore, the rotating arm includes a first groove body, a scraper, a screw groove and a stud; a row of screw grooves are evenly distributed along the transverse direction of the first groove body; the scraper is in an L shape, and a threaded hole is provided at the corresponding position of its connecting part and the screw groove, and the stud passes through the screw groove and is threadedly connected to the threaded hole of the scraper; the scraping part of the scraper is in contact with the upper surface of the conveyor belt of the belt conveyor.

[0011] Furthermore, the second fixing assembly includes a fourth fixing plate, a second fixing column, a third fixing column, a travel switch and a controller; the fourth fixing plate is fixed to the left end of the belt conveyor; the second fixing column and the third fixing column are fixed to the left end of the fourth fixing plate; and a distance is provided between the second fixing column and the third fixing column, and the left end of the rotating arm extends into the distance between the second fixing column and the third fixing column; two travel switches are provided on the left side between the second fixing column and the third fixing column.

[0012] Furthermore, the vertical adjustment assembly includes an electro-hydraulic push rod, the electro-hydraulic push rod is vertically arranged, and the bottom end of its telescopic rod is hinged to the first ear plate of the first fixing column; the two travel switches are electrically connected to the electro-hydraulic push rod through the controller; the controller is arranged on the second fixing column.

[0013] Furthermore, the bottom end of the telescopic rod of the electro-hydraulic push rod is fixedly connected with a second ear plate; the lower end of the second ear plate is hinged to a third ear plate; the lower end of the third ear plate is fixedly connected with a U-shaped limit frame; the lower end of the U-shaped limit frame is hinged to a fourth ear plate; the fourth ear plate is hinged to the first ear plate through a pin.

[0014] The beneficial effects of the present utility model are as follows: in the present utility model, when discharging is required, the discharging assembly is rotated around the first fixing assembly by opening the vertical adjustment assembly to realize lifting away from or approaching the conveying device, so as to control the discharging assembly to perform the discharging work. The vertical adjustment assembly is used to lift and lower to control the discharging assembly to move away from or approach the conveying device, avoiding manual lifting of the discharging assembly, reducing the labor intensity, and being convenient to operate, and solving the problem of manually adjusting the scraper of the discharger.

[0015] When the scraper needs to be replaced, the stud is taken out from the screw groove by rotating the stud, then the scraper is replaced, and then the scraper is installed on the first groove body in the same way, which is convenient for replacing the scraper on the discharger.

[0016] By means of the shock absorber provided on the second fixing plate, when the scraping plate moves downward, the collision of the lower end of the scraping plate against the conveyor belt on the belt conveyor can be reduced, the abrasion generated when the device works under the condition of moving up and down is alleviated, and the overall service life of the device is prolonged. Brief Description of the Drawings

[0017] Figure 1 It is a schematic structural view of the present utility model;

[0018] Figure 2 It is a schematic structural view of the conveying device of the present utility model;

[0019] Figure 3 It is a schematic structural view of the first fixing assembly and the discharging assembly of the present utility model;

[0020] Figure 4 is Figure 1 the partial enlarged view at A of

[0021] In the figure, the conveying device 1, the belt conveyor 101, the feeding chute 102, the first fixing assembly 2, the first fixing plate 201, the second fixing plate 202, the shock absorber 203, the third fixing plate 204, the discharging assembly 3, the rotating arm 301, the first trough body 302, the scraping plate 303, the spiral groove 304, the screw post 305, the first fixing post 306, the first ear plate 307, the second fixing assembly 4, the fourth fixing plate 401, the second fixing post 402, the third fixing post 403, the travel switch 404, the controller 405, the vertical adjusting assembly 5, the electro-hydraulic push rod 501, the second ear plate 502, the third ear plate 503, the U-shaped limiting frame 504, the fourth ear plate 505, and the bolt 506. Detailed Embodiment

[0022] The following further describes the present utility model in conjunction with the drawings and embodiments as follows:

[0023] The "upper", "lower", "left", "right", "horizontal", "vertical" and "longitudinal" indicating directions in the present utility model are all based on its use state position, that is, the attachment Figure 1 shown, and the orientation or positional relationship based on the attachment Figure 1 shown is only for the convenience of describing the present utility model, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation to the present utility model.

[0024] In the description of this specification, it should be noted that unless otherwise clearly specified and defined, terms such as "installation", "equipped with", "connection", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] The vertical adjustable unloading mechanism for coal preparation plants, such as Figure 1 shown, includes a conveying device 1 and a discharging assembly 3 spanning above the conveying device 1. A first fixing assembly 2 is arranged on the right side of the conveying device 1, and a second fixing assembly 4 is arranged on the left side. A vertical adjusting assembly 5 that can expand and contract vertically is arranged on the second fixing assembly 4; the right end of the discharging assembly 3 is hinged to the first fixing assembly 2, and the left end is connected to the vertical adjusting assembly 5, and the discharging assembly 3 is driven by the vertical adjusting assembly 5 to rotate around the second fixing assembly 4.

[0026] For the vertical adjustable unloading mechanism for coal preparation plants disclosed by the present utility model, when unloading is required, the vertical adjusting assembly 5 is activated to move the vertical adjusting assembly 5 up and down, thereby driving the left end of the discharging assembly 3 to move up and down, achieving the purpose of controlling the discharging position of the discharging assembly, so that the discharging assembly can better complete the discharging work. For example: when the distance between the discharging assembly 3 and the conveying device 1 is relatively large and the discharging work cannot be well completed, the vertical adjusting assembly 5 can be used to control the discharging assembly 3 to move down to reduce the distance between the discharging assembly 3 and the conveying device 1; when the contact between the discharging assembly 3 and the conveying device 1 is excessive, resulting in easy wear of the conveying device 1 and the discharging assembly 3, the vertical adjusting assembly 5 can be used to control the discharging assembly 3 to move up to increase the distance between the discharging assembly 3 and the conveying device 1.

[0027] Therefore, the present utility model controls the discharging assembly 3 to move away from or close to the conveying device 1 by lifting and lowering the vertical adjusting assembly 5, avoiding manual lifting and lowering of the discharging assembly 3, reducing the labor intensity, and being convenient to operate.

[0028] Preferably, as Figure 2 shown, the conveying device 1 includes a belt conveyor 101 and a guiding chute 102; the guiding chute 102 is arranged on the right side of the belt conveyor 101, and the guiding chute 102 is centered on the discharging opening of the discharging assembly 3.

[0029] The discharging opening of the discharging assembly 3 is the right end of the discharging assembly 3 in this embodiment. The discharging assembly 3 scrapes materials on the belt conveyor 101, and materials such as coal blocks slide onto the guiding chute 102 through the belt conveyor 101 for collection.

[0030] An independent support frame can be directly arranged on the right side of the conveying device 1 as the first fixing component 2. In this embodiment, as Figure 3 shown, the first fixing component 2 includes a first fixing plate 201, a second fixing plate 202 and a third fixing plate 204; the first fixing plate 201 is fixed to the right end of the belt conveyor 101; the second fixing plate 202 is fixed to the right end of the first fixing plate 201; the third fixing plate 204 is vertically fixed above the second fixing plate 202. There are two third fixing plates 204, and the two third fixing plates 204 are arranged oppositely in the longitudinal direction, and a spacing for accommodating the discharging component 3 is arranged between the two third fixing plates 204; the right end of the discharging component 3 extends into the spacing between the two third fixing plates 204 and is hinged to the third fixing plate 204. The first fixing plate 201, the second fixing plate 202 and the third fixing plate 204 adopt a plate-shaped structure, which is simple in structure and easy to obtain materials. The first fixing plate 201 is fixed to the right end of the belt conveyor 101, realizing the connection between the first fixing component 2 and the belt conveyor 101, making them form an integral whole, and the structure is more compact. By hinging the right end of the discharging component 3 with the two third fixing plates 204, the discharging component 3 can rotate stably.

[0031] Preferably, the discharging component 3 includes a rotating arm 301, a first fixing column 306 and a first ear plate 307; the first fixing column 306 is parallel to the rotating arm 301 and is fixed to the top of the left end of the rotating arm 301; the first ear plate 307 is fixed to the top of the first fixing column 306. The first fixing column 306 fixed with the first ear plate 307 is used to connect the left end of the rotating arm 301 with the vertical adjustment component 5. Compared with directly fixing the first ear plate 307 to the rotating arm 301, the setting of the first fixing column 306 shortens the overall length of the rotating arm 301, saves materials, and reduces the overall weight of the rotating arm 301.

[0032] In the present utility model, the rotating arm 301 is used to scrape materials such as coal in coal mines onto the material guiding chute 102 through the belt conveyor 101 for collection. The rotating arm 301 can be an integrally formed part, that is, directly using the scraper as the rotating arm 301. However, during the long-term use of the scraper 303, there will be wear and other problems that require replacement. For the convenience of replacement, preferably, the rotating arm 301 includes a first groove body 302, a scraper 303, a screw groove 304, and a screw stud 305; a row of screw grooves 304 are evenly distributed along the transverse direction of the first groove body 302; the scraper 303 is L-shaped, and a threaded hole is provided at the corresponding position of its connecting part and the screw groove 304. The screw stud 305 passes through the screw groove 304 and is threadedly connected to the threaded hole of the scraper 303; the scraping part of the scraper 303 is attached to the upper surface of the conveyor belt of the belt conveyor 101. The scraper 303 is installed through the first groove body 302. When the scraper 303 is worn and needs to be replaced, the screw stud 305 is rotated to remove the screw stud 305 from the screw groove 304, and then the scraper 303 is replaced. Then, the scraper 303 is installed on the first groove body 302 in the same way. Compared with replacing the entire rotating arm 301, it saves costs, reduces labor intensity, and is convenient for replacement.

[0033] The rotating arm 301 formed by the first groove body 302 and the scraper 303 is groove-shaped, and the groove opening faces the running direction of the belt conveyor 101. In this way, during the process of the scraper 303 scraping coal materials, part of the coal materials can be accommodated in the groove body, increasing the amount of coal materials scraped.

[0034] To further reduce wear, preferably, an elastic shock absorber 203 is provided on the second fixing plate 202; the rotating arm 301 is located above the shock absorber 203, and the bottom end of the rotating arm 301 is attached to the telescopic rod of the shock absorber 203. The setting of the shock absorber 203 reduces the collision of the lower end of the scraper 303 against the conveyor belt on the belt conveyor during the downward displacement of the scraper 303, reduces the wear generated during the up and down displacement of the device, and improves the overall service life of the device.

[0035] As Figure 4 shown, the vertical adjustment assembly 5 includes an electro-hydraulic push rod 501. The electro-hydraulic push rod 501 is vertically arranged, and the bottom end of its telescopic rod is hinged to the first ear plate 307 of the first fixed column 306; two travel switches 404 are electrically connected to the electro-hydraulic push rod 501 through a controller 405; the controller 405 is arranged on the second fixed column 402.

[0036] In order to effectively connect the electro-hydraulic push rod 501 with the first ear plate 307, a second ear plate 502 is fixedly connected to the bottom end of the telescopic rod of the electro-hydraulic push rod 501; the lower end of the second ear plate 502 is hinged to a third ear plate 503; the lower end of the third ear plate 503 is fixedly connected to a U-shaped limit frame 504; the lower end of the U-shaped limit frame 504 is hinged to a fourth ear plate 505; the fourth ear plate 505 is hinged to the first ear plate 307 through a pin 506.

[0037] The second fixing component 4 includes a fourth fixing plate 401, a second fixing column 402, a third fixing column 403, a travel switch 404 and a controller 405; the fourth fixing plate 401 is fixed to the left end of the belt conveyor 101; the second fixing column 402 and the third fixing column 403 are fixed to the left end of the fourth fixing plate 401; and there is a spacing between the second fixing column 402 and the third fixing column 403. The left end of the rotating arm 301 extends into the spacing between the second fixing column 402 and the third fixing column 403. The spacing between the second fixing column 402 and the third fixing column 403 forms a vertically extending channel for the left end of the rotating arm 301 to move up and down. There are two travel switches 404, one above and the other below, arranged on the left side between the second fixing column 402 and the third fixing column 403. When the first fixing column 306 touches the upper travel switch 404, the controller 405 controls the telescopic rod of the electro-hydraulic push rod 501 to stop retracting upward; when the lower end of the scraper 303 touches the lower travel switch 404, the controller 405 controls the telescopic rod of the electro-hydraulic push rod 501 to stop extending downward. When the lower end of the scraper 303 contacts the travel switch 404, the coal blocks slide onto the material guiding chute 102 through the scraper 303 on the belt conveyor 101 for collection. Through the shock absorber 203 provided on the second fixing plate 202, when the scraper 303 moves downward, the collision of the lower end of the scraper 303 against the conveyor belt at the upper end of the belt conveyor 101 can be reduced.

[0038] As can be seen from the above, when discharging is required, the vertical adjustment component 5 is opened to make the discharging component 3 rotate around the first fixing component 2 to lift or approach the belt conveyor, so as to control the discharging component 3 to perform the discharging work. When the scraper of the discharging component 3 needs to be replaced and maintained, the scraper can be replaced through the threaded structure on the discharging component 3, solving the problems of manual adjustment of the scraper of the discharger and inconvenient replacement of the scraper.

[0039] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A vertically adjustable unloading mechanism for a coal preparation plant, comprising a conveying device (1) and a unloading assembly (3) spanning above the conveying device (1), characterized in that: A first fixing component (2) is arranged on the right side of the conveying device (1), and a second fixing component (4) is arranged on the left side; a vertical adjustment component (5) which is telescopic in the vertical direction is arranged on the second fixing component (4); the right end of the unloading component (3) is hinged to the first fixing component (2), and the left end is connected to the vertical adjustment component (5); the unloading component (3) is driven to rotate around the second fixing component (4) via the vertical adjustment component (5).

2. The vertically adjustable unloading mechanism for a coal preparation plant according to claim 1, characterized in that: The conveying device (1) comprises a belt conveyor (101) and a material guide chute (102); the material guide chute (102) is arranged on the right side of the belt conveyor (101), and the material guide chute (102) is aligned with the discharge port of the discharge assembly (3).

3. The vertically adjustable unloading mechanism for a coal preparation plant as claimed in claim 2, characterized in that: The first fixing assembly (2) comprises a first fixing plate (201), a second fixing plate (202) and a third fixing plate (204); the first fixing plate (201) is fixed to the right end of the belt conveyor (101); the second fixing plate (202) is fixed to the right end of the first fixing plate (201); the third fixing plate (204) is vertically fixed above the second fixing plate (202), there are two third fixing plates (204), the two third fixing plates (204) are arranged opposite to each other in the longitudinal direction, and a spacing for accommodating the unloading assembly (3) is arranged between the two third fixing plates (204); the right end of the unloading assembly (3) extends into the spacing between the two third fixing plates (204) and is hinged to the third fixing plate (204).

4. The vertically adjustable unloading mechanism for a coal preparation plant as claimed in claim 3, characterized in that: The unloading assembly (3) comprises a rotating arm (301), a first fixed column (306) and a first ear plate (307); the first fixed column (306) is fixed to the top of the left end of the rotating arm (301) parallel to the rotating arm (301); the first ear plate (307) is fixed to the top of the first fixed column (306).

5. The vertically adjustable unloading mechanism for a coal preparation plant as claimed in claim 4, characterized in that: An elastic shock absorber (203) is arranged on the second fixed plate (202); the rotating arm (301) is located above the shock absorber (203), and the bottom end of the rotating arm (301) is in contact with the telescopic rod of the shock absorber (203).

6. The vertically adjustable unloading mechanism for a coal preparation plant as claimed in claim 4, characterized in that: The cross section of the rotating arm (301) is groove-shaped, and the groove faces the running direction of the belt conveyor (101).

7. The vertically adjustable unloading mechanism for a coal preparation plant as claimed in claim 6, characterized in that: The rotating arm (301) comprises a first trough body (302), a scraper (303), a screw groove (304) and a stud (305); a row of screw grooves (304) are evenly distributed on the first trough body (302) along its transverse direction; the scraper (303) is L-shaped, and a threaded hole is provided at a connection portion thereof corresponding to the screw groove (304); the stud (305) passes through the screw groove (304) and is threadedly connected to the threaded hole of the scraper (303); and the scraping portion of the scraper (303) is in contact with the upper surface of the conveyor belt of the belt conveyor (101).

8. The vertically adjustable unloading mechanism for a coal preparation plant as claimed in claim 4, characterized in that: The second fixing assembly (4) comprises a fourth fixing plate (401), a second fixing column (402), a third fixing column (403), a travel switch (404) and a controller (405); the fourth fixing plate (401) is fixed to the left end of the belt conveyor (101); the second fixing column (402) and the third fixing column (403) are fixed to the left end of the fourth fixing plate (401); a spacing is provided between the second fixing column (402) and the third fixing column (403), and the left end of the rotating arm (301) extends into the spacing between the second fixing column (402) and the third fixing column (403); and two upper and lower travel switches (404) are provided on the left side between the second fixing column (402) and the third fixing column (403).

9. The vertically adjustable unloading mechanism for a coal preparation plant as claimed in claim 8, characterized in that: The vertical adjustment assembly (5) comprises an electro-hydraulic push rod (501), which is arranged vertically, and the bottom end of its telescopic rod is hinged on the first ear plate (307) of the first fixed column (306); two travel switches (404) are electrically connected to the electro-hydraulic push rod (501) through a controller (405); and the controller (405) is arranged on the second fixed column (402).

10. The vertically adjustable unloading mechanism for a coal preparation plant according to claim 9, characterized in that: The bottom end of the telescopic rod of the electro-hydraulic push rod (501) is fixedly connected to a second ear plate (502); the lower end of the second ear plate (502) is hingedly connected to a third ear plate (503); the lower end of the third ear plate (503) is fixedly connected to a U-shaped limit frame (504); the lower end of the U-shaped limit frame (504) is hingedly connected to a fourth ear plate (505); the fourth ear plate (505) is hingedly connected to the first ear plate (307) via a latch (506).

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