Coal cleaning device for coal mine scraper

Abstract

The application discloses a coal cleaning device for a coal mine scraper, which comprises a mounting unit and a coal cleaning unit. The mounting unit comprises two fixed plates, three rollers rotatably arranged between the two fixed plates and in an arc shape on one side of the fixed plates, and a transmission belt sleeved on the three rollers. The coal cleaning unit comprises a plurality of mounting boxes arranged on the transmission belt, two groups of support columns arranged on the side of the mounting boxes, a vibration assembly arranged in the mounting box, a driving assembly arranged between the vibration assembly and one of the limiting strips, and a cleaning assembly arranged on the side of the mounting box. The coal cleaning device for the coal mine scraper is installed below the heavy sealing bottom type chute scraper through the two fixed plates of the mounting unit. When the scraper rotates, the scraper is abutted against the support column, and the mounting box and the transmission belt are driven to move. When the mounting box moves, the vibration assembly and the cleaning assembly remove the coal and gangue adhered to the two sides of the scraper, respectively.

Description

Technical Field

[0001] This invention relates to the technical field of coal mining machinery, and in particular to a coal cleaning device for a coal mine scraper conveyor. Background Technology

[0002] Coal mining operations typically use heavy-duty sealed-bottom chute scrapers. Due to their enclosed lower chain track structure, when too much coal and gangue adhere to the scraper, it is easily carried into the lower chain track by the scraper and chain. When this accumulates to a certain extent, the motor load increases significantly, leading to motor overload or even damage to the motor.

[0003] Patent CN108082894B discloses a coal cleaning device for a coal mine scraper conveyor, including a base; the follow-up coal cleaning mechanism includes support plates on the left and right sides; three transmission shafts are rotatably installed between the two support plates; an arc-shaped guide rail plate is fixed to the upper end of each support plate; the left and right ends of the transmission belt are slidably connected to the guide grooves on both sides respectively; the follow-up coal cleaning device includes a mounting box fixedly connected to the transmission belt; a linear vibration unit is installed in the middle of the front side wall of the mounting box; pressing devices are evenly installed in the mounting box along the left and right directions; the pressing device includes a motor and pressing rods evenly distributed in the up and down directions; a compression spring is rotatably sleeved on the front of the pressing rod; a driven gear is provided in the middle of the pressing rod; the main gear is meshed with the driven gear on the bottom side; the scraper strikes one side to shake off the coal and gangue adhering thereto;

[0004] In this method, only one side of the scraper is struck, and the vibration is reduced when it reaches the back of the scraper. This results in coal and gangue adhering to the back of the scraper not falling off properly with the vibration, leading to incomplete cleaning. Therefore, this invention provides a coal cleaning device for a coal mine scraper conveyor. Summary of the Invention

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0006] In view of the problem that existing coal cleaning devices for scraper conveyors in coal mines cannot simultaneously clean coal and gangue on both sides of the scraper, the present invention is proposed.

[0007] Therefore, the purpose of this invention is to provide a coal cleaning device for a coal mine scraper conveyor, which aims to clean the coal and gangue on both sides of the scraper.

[0008] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a coal cleaning device for a coal mine scraper conveyor, comprising: an installation unit including two fixed plates, three rollers rotatably disposed between the two fixed plates, a transmission belt sleeved on the three rollers, and a limiting strip disposed on the arc-shaped side of the fixed plates for limiting the transmission belt, wherein one side of the fixed plates is arc-shaped; and a coal cleaning unit including multiple mounting boxes disposed on the transmission belt, two sets of support columns disposed on the side of the mounting boxes, a vibration component disposed inside the mounting boxes, a drive component disposed between the vibration component and one of the limiting strips, and a cleaning component disposed on the side of the mounting boxes.

[0009] As a preferred embodiment of the coal cleaning device for a coal mine scraper conveyor according to the present invention, the vibration component includes a sliding part slidably disposed at the bottom of the mounting box and connected to the drive component, a plurality of mounting rods disposed on the top surface of the sliding part, a plurality of connecting rods disposed on the mounting rods, and a vibration column disposed at the end of the connecting rods and slidably passing through the mounting box; the vibration column is on the same side as the support column.

[0010] In a preferred embodiment of the coal cleaning device for a coal mine scraper conveyor according to the present invention, the sliding part includes a support panel connected to the mounting rod, and a sliding member disposed below the support panel and slidably connected to the mounting box; the driving assembly includes a reset part disposed between the support panel and the mounting box, and a driving part disposed between the support panel and the limiting strip.

[0011] As a preferred embodiment of the coal cleaning device for a coal mine scraper conveyor according to the present invention, the driving unit includes a rotating plate rotatably disposed at the bottom of the mounting box, a driving member slidably disposed on the mounting box and located between one side of the rotating plate and a limiting strip, and an enlarged member disposed between the other side of the rotating plate and the support panel; the limiting strip is provided with a corrugated groove, and the driving member includes a driving rod slidably disposed on the mounting box and slidingly abutting against the corrugated groove, the other end of the driving rod abutting against the rotating plate.

[0012] As a preferred embodiment of the coal cleaning device for a coal mine scraper conveyor according to the present invention, the enlarged component includes a fixed cylinder disposed on the mounting box, a telescopic rod slidably disposed on the fixed cylinder, a connecting pipe disposed at the bottom end of the fixed cylinder (at least one of which is provided), and a pressing rod slidably disposed in the connecting pipe and abutting against one side of the rotating plate; the rotating plate is provided with a sliding groove, and the telescopic rod passes through the sliding groove and abuts against the support panel.

[0013] As a preferred embodiment of the coal cleaning device for a coal mine scraper conveyor according to the present invention, the reset part includes a storage groove disposed at the end of the support panel, and a first elastic member disposed in the storage groove and abutting against the mounting box.

[0014] As a preferred embodiment of the coal cleaning device for a coal mine scraper conveyor according to the present invention, the cleaning component includes a U-shaped frame disposed at the bottom of the outer side of the mounting box, a mounting part disposed in the U-shaped frame, a cleaning part slidably disposed on the mounting part, and a transmission part disposed between the cleaning part and the support panel; the mounting box is provided with a through groove, and the transmission part passes through the through groove and connects to the support panel.

[0015] As a preferred embodiment of the coal cleaning device for a coal mine scraper conveyor according to the present invention, the mounting part includes a rotating shaft rotatably disposed at one end of the C-shaped frame, two sliding rods disposed on the rotating shaft, and a counterweight block disposed at the end of the sliding rod; a connecting groove is provided on one side of the C-shaped frame, and the counterweight block is slidably inserted into the connecting groove, the connecting groove being close to the drive part.

[0016] As a preferred embodiment of the coal cleaning device for a coal mine scraper conveyor according to the present invention, the cleaning part includes a slider slidably disposed on the slide rod and a cleaning component disposed on the slider; the transmission part includes a connecting plate disposed on the slider and a transmission component hinged to the end of the connecting plate; the side of the support panel is provided with a plurality of levers, and the levers move against the transmission component.

[0017] As a preferred embodiment of the coal cleaning device for a coal mine scraper conveyor according to the present invention, the transmission component includes: a mounting plate hinged to the connecting plate, a first mounting groove on the mounting plate, a moving block slidably disposed in the first mounting groove, a second elastic member disposed in the first mounting groove and connected to the moving block, a second mounting groove disposed at the end of the moving block, a limiting plate hinged to the second mounting groove and abutting against the lever plate, and a non-linear spring disposed between the limiting plate and the moving block; the non-linear spring bends towards the driving part, and the connecting plate is provided with an abutting block abutting against the side of the mounting plate.

[0018] The beneficial effects of the present invention are as follows: The entire coal cleaning unit is installed below the heavy-duty sealed bottom chute scraper conveyor by the two fixing plates of the installation unit. When the scraper conveyor rotates, the scraper abuts against the support column, and at the same time drives the installation box and the transmission belt to move. When the installation box moves, the vibration component and the cleaning component remove the coal and gangue adhering to both sides of the scraper. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0020] Figure 1 This is a schematic diagram of the overall structure of the coal cleaning device for a coal mine scraper conveyor according to the present invention.

[0021] Figure 2 This is a schematic diagram of the coal cleaning unit structure of the coal cleaning device for a coal mine scraper conveyor according to the present invention.

[0022] Figure 3 This is a cross-sectional structural diagram of the installation box of the coal cleaning device for a coal mine scraper conveyor according to the present invention.

[0023] Figure 4 This is a schematic diagram of the vibration component structure of the coal cleaning device for a coal mine scraper conveyor according to the present invention.

[0024] Figure 5 This is an enlarged structural diagram of the coal cleaning device for a coal mine scraper conveyor according to the present invention.

[0025] Figure 6 For the present invention Figure 1 Enlarged view of area A.

[0026] Figure 7 This is a schematic diagram of the inverted structure of the installation component of the coal cleaning device for a coal mine scraper conveyor according to the present invention. Detailed Implementation

[0027] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0028] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0029] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0030] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0031] Example 1

[0032] Reference Figure 1-2 The first embodiment of the present invention provides a coal cleaning device for a coal mine scraper conveyor. The device includes an installation unit 100 and a coal cleaning unit 200. The installation unit 100 installs the coal cleaning unit 200 below the heavy-duty sealed bottom chute scraper conveyor. When the scraper conveyor rotates, the scraper contacts the coal cleaning unit 200, thereby cleaning both sides of the scraper.

[0033] The installation unit 100 includes two fixed plates 101, three rollers 102 rotatably disposed between the two fixed plates 101, the three rollers 102 being arranged at right angles and a transmission belt 103 sleeved on the three rollers 102, and a limiting strip 104 disposed on the arc-shaped side of the fixed plate 101 for limiting the transmission belt 103. One side of the fixed plate 101 is arc-shaped, and when the fixed plate 101 is fixed below the heavy-duty sealing bottom chute scraper, the arc-shaped transmission belt 103 is coaxial with the rotation center of the scraper.

[0034] The coal cleaning unit 200 includes multiple mounting boxes 201 disposed on the transmission belt 103. The number of mounting boxes 201 is adjusted according to the interval between the scrapers on the scraper conveyor and is fixed at equal intervals on the transmission belt 103 and moves with the rotation of the transmission belt 103. It also includes two sets of support columns 202 disposed on the side of the mounting box 201, a vibration component 203 disposed inside the mounting box 201, a drive component 204 disposed between the vibration component 203 and one of the limiting bars 104, and a cleaning component 205 disposed on the side of the mounting box 201.

[0035] When the scraper rotates, it will abut against the support column 202 of one of the mounting boxes 201, and drive the mounting box 201 and the transmission belt 103 to move. As the mounting box 201 moves to the arc surface of the transmission belt 103, it will abut against the scraper behind the scraper, forming a cyclic contact, driving the transmission belt 103 to keep working.

[0036] The vibration component 203 can be composed of a cam and a rotating shaft. The rotating shaft passes through the mounting box 201 and is equipped with a gear. The drive component 204 can be composed of a rack mounted on the limit bar 104. The gear is connected to the rack. The other end of the rotating shaft is equipped with a cam. The cam passes through the mounting box 201 and abuts against the scraper. When the scraper abuts against the support rod, it drives the mounting box 201 to move. The gear moves along the rack and rotates, thereby driving the convex tooth to rotate and vibrate the scraper to remove coal.

[0037] The cleaning component 205 can be composed of a screw drive part 205d installed at the end of the mounting box 201 and a brush. When the scraper abuts against the support column 202, the screw drive part 205d drives the brush to move. When the scraper rotates and separates from the mounting box 201, the side of the scraper is cleaned. In conjunction with the vibration component, both sides of the scraper are cleaned at the same time.

[0038] During use, the entire coal cleaning unit 200 is installed below the heavy-duty sealed-bottom chute scraper conveyor via two fixing plates 101 of the installation unit 100. When the scraper conveyor rotates, the scraper abuts against the support column 202, which in turn drives the installation box 201 and the transmission belt 103 to move. When the installation box 201 moves, the vibration component 203 and the cleaning component 205 remove the coal and gangue adhering to both sides of the scraper respectively. When multiple scrapers rotate, they will work seamlessly with multiple installation boxes 201, driving the rotating belt to work continuously and cleaning each scraper in turn.

[0039] Example 2

[0040] Reference Figure 1-7 This is the second embodiment of the present invention, which differs from the first embodiment in that: the vibration assembly 203 includes a sliding part 203a slidably disposed at the bottom of the mounting box 201 and connected to the drive assembly 204, a plurality of mounting rods 203b disposed on the top surface of the sliding part 203a, a plurality of connecting rods 203c disposed on the mounting rods 203b, and a vibration column 203d disposed at the end of the connecting rod 203c and slidably passing through the mounting box 201. The two ends of the connecting rod 203c are respectively hinged to the vibration column 203d and the mounting rod 203b; the vibration column 203d is on the same side as the support column 202, and the plurality of vibration columns 203d are located between two sets of support columns 202, with at least one vibration column 203d in each set of support columns 202. When the scraper abuts against the support column 202, the vibration column 203d will contact and strike the scraper during operation, thereby knocking down the coal and gangue adhering to one side of the scraper.

[0041] The sliding part 203a includes a support panel 203a-1 connected to the mounting rod 203b, and a sliding member 203a-2 disposed below the support panel 203a-1 and slidably connected to the mounting box 201. The bottom end of the sliding member 203a-2 is T-shaped and is inserted into the bottom of the mounting box 201, causing the support panel 203a-1 to slide along the mounting box 201. When the support panel 203a-1 slides, it will drive multiple mounting rods 203b and connecting rods 203c to move, changing the connecting rod 203c from a state parallel to the vibrating column 203d to an inclined state. When the connecting rod 203c changes back and forth between the inclined and parallel states, the vibrating column 203d will slide back and forth with the connecting rod 203c, contacting the scraper back and forth, thereby impacting the scraper back and forth and knocking off the coal and gangue adhering to one side of the scraper.

[0042] The drive assembly 204 includes a reset part 204a disposed between the support panel 203a-1 and the mounting box 201, and a drive part 204b disposed between the support panel 203a-1 and the limit bar 104. The drive part 204b and the reset part 204a are located on both sides of the support panel 203a-1.

[0043] The drive unit 204b includes a rotating plate 204b-1 rotatably disposed at the bottom of the mounting box 201, the rotating plate 204b-1 being connected to the bottom end of the mounting box 201 via a rotating shaft and slidably disposed on the mounting box 201, and a drive member 204b-2 located between one side of the rotating plate 204b-1 and the limiting strip 104, and an enlarger member 204b-3 disposed between the other side of the rotating plate 204b-1 and the support panel 203a-1;

[0044] The limiting strip 104 is provided with a corrugated groove 104a. The driving component 204b-2 includes a driving rod 204b-21 that is slidably disposed on the mounting box 201 and slides against the corrugated groove 104a. The other end of the driving rod 204b-21 abuts against the rotating plate 204b-1. The part of the driving rod 204b-21 that slides against the rotating plate 204b-1 is smoothly disposed. The contact part between the driving rod 204b-21 and the corrugated groove 104a is provided with a ball. The ball is embedded in the end of the driving rod 204b-21. The top of the corrugated groove 104a is set vertically. When the driving rod 204b-21 moves with the transmission belt 103, it can smoothly enter the corrugated groove 104a from the top of the corrugated groove 104a.

[0045] The magnifying component 204b-3 includes a fixed cylinder 204b-31 mounted on the mounting box 201, a telescopic rod 204b-32 slidably mounted on the fixed cylinder 204b-31, a connecting pipe 204b-33 (at least one of which is provided) located at the bottom end of the fixed cylinder 204b-31, and a pressing rod 204b-34 slidably mounted in the connecting pipe 204b-33 and abutting against one side of the rotating plate 204b-1. The magnifying component 204b-3... 3 can amplify the fluctuation of the drive rod 204b-21 as it moves with the corrugated groove 104a, thereby increasing the travel of the support panel 203a-1, increasing the impact force of the vibrating component, and increasing the cleaning effect. The rotating plate 204b-1 is provided with a sliding groove 204b-11, and the telescopic rod 204b-32 passes through the sliding groove 204b-11 and abuts against the support panel 203a-1. Two pressing rods 204b-34 are located on both sides of the sliding groove 204b-11.

[0046] The drive plate is divided into two ends. The torque at the end that contacts the drive rod 204b-21 is less than the torque at the other end. When the drive rod 204b-21 moves along the corrugated groove 104a, it will squeeze one end of the drive rod 204b-21 when it reaches the crest of the corrugated groove 104a. This will pry the other end of the drive rod 204b-21, squeezing the compression rod 204b-34 and forcing the gas in the connecting pipe 204b-33 into the fixed cylinder 204b-31, thereby extending the telescopic rod 204b-32. By setting the torque of the drive rod 204b-21 and the connecting pipe 204b-33, the travel of the drive rod 204b-21 along the corrugated groove 104a is adjusted. When the support panel 203a-1 moves, the movement is magnified. When the telescopic rod 204b-32 extends to push the support panel 203a-1, the reset part 204a on the other side of the support panel 203a-1 is compressed. When the drive rod 204b-21 moves to the trough of the corrugated groove 104a, the reset part 204a rebounds, causing the support panel 203a-1 to rebound and squeezing the telescopic rod 204b-32. This forces the gas inside the fixed cylinder 204b-31 into the connecting pipe 204b-33. When the drive rod 204b-21 moves to the crest of the next wave, it continues to squeeze the compression rod 204b-34, forming a cyclic movement of the support panel 203a-1, thereby controlling the cyclic vibration of the vibrating column 203d.

[0047] The reset part 204a includes a storage groove 204a-1 disposed at the end of the support panel 203a-1, and a first elastic member 204a-2 disposed in the storage groove 204a-1 and abutting against the mounting box 201. The first elastic member 204a-2 can be made of a spring and a metal sheet, preferably supported by a spring. When the support panel 203a-1 moves to the crest of the corrugated groove 104a with the drive rod 204b-21, it will squeeze the first elastic member 204a-2. When the drive rod 204b-21 moves to the trough of the corrugated groove 104a, the first elastic member 204a-2 controls the return of the support plate, forming a cyclic movement.

[0048] The remaining structure is the same as that in Example 1.

[0049] During use, the entire coal cleaning unit 200 is installed below the heavy-duty sealed-bottom chute scraper conveyor via the two fixing plates 101 of the installation unit 100. When the scraper conveyor rotates, the scraper abuts against the support column 202, which in turn drives the installation box 201 and the transmission belt 103 to move. When the installation box 201 moves, the drive rod 204b-21 slides along the corrugated groove 104a and cooperates with the reset part 204a, causing the support panel 203a-1 to move back and forth in a cyclical manner, thereby driving the vibrating column 203d to repeatedly impact the scraper and clean one side of the scraper. The amplifying component 204b-3 can amplify the stroke of the drive rod 204b-21 along the corrugated groove 104a when it is converted into the movement of the support panel 203a-1, thereby increasing the impact capability of the vibrating column 203d.

[0050] Example 3

[0051] Reference Figure 1-7 This is the third embodiment of the present invention, which differs from the second embodiment in that: the cleaning assembly 205 includes a C-shaped frame 205a disposed at the bottom of the outer side of the mounting box 201, the C-shaped frame 205a being located on one side of the support column 202, a mounting part 205b disposed in the C-shaped frame 205a, a cleaning part 205c slidably disposed on the mounting part 205b, and a transmission part 205d disposed between the cleaning part 205c and the support panel 203a-1; the mounting box 201 is provided with a through groove 201a, and the transmission part 205d passes through the through groove 201a and connects to the support panel 203a-1;

[0052] The mounting part 205b includes a rotating shaft 205b-1 rotatably mounted on one end of the C-shaped frame 205a, two sliding rods 205b-2 mounted on the rotating shaft 205b-1, and a counterweight 205b-3 mounted on the end of the sliding rods 205b-2. A connecting groove 205b-4 is provided on one side of the C-shaped frame 205a, and the counterweight 205b-3 is slidably inserted into the connecting groove 205b-4. The connecting groove 205b-4 is located near the drive part 204b. When the scraper abuts against the support column 202, the counterweight 205b-3 is located at the bottom end of the connecting groove 205b-4, and the sliding rods 205b-2 are in a horizontal state.

[0053] The cleaning unit 205c includes a slider 205c-1 slidably disposed on a slider 205b-2, and a cleaning component 205c-2 disposed on the slider 205c-1. The cleaning component 205c-2 is made of a brush plate fixed to the slider 205c-1 and brush bristles connected to the brush plate. The cleaning component 205c-2 is initially located outside the two sets of support columns 202. When the scraper abuts against the support column 202, the cleaning component 205c-2 is located outside the scraper and close to the drive unit 204b.

[0054] When the scraper abuts against the support column 202, it moves the mounting box 201 and the transmission belt 103. The support panel 203a-1 slides back and forth, driving the slider 205c-1 and the cleaning component 205c-2 to move via the transmission part 205d, sweeping away the coal adhering to the other side of the scraper. When the scraper separates from the support column 202, the cleaning component 205c-2 moves to the other side of the sliding plate. As the transmission belt 103 moves, when the mounting box 201 moves below the transmission belt 103... The counterweight 205b-3 slides along the connecting groove 205b-4, causing the slide rod 205b-2 on the side of the counterweight 205b-3 to lower. The slider 205c-1 slides along the slide rod 205b-2 and returns to the initial state near the drive unit 204b. As the transmission belt 103 moves, when the mounting box 201 leaves the area below the transmission belt 103, the counterweight 205b-3 slides, causing the slide rod 205b-2 to return to a horizontal position, waiting for the scraper to contact again, and then performing a cyclic cleaning operation on the scraper.

[0055] The transmission part 205d includes a connecting plate 205d-1 disposed on the slider 205c-1, and a transmission component 205d-2 hinged at the end of the connecting plate 205d-1; the support panel 203a-1 has a plurality of levers 205d-3 on its side, and the levers 205d-3 move against the transmission component 205d-2.

[0056] The transmission component 205d-2 includes a mounting plate 205d-21 hinged to the connecting plate 205d-1, a first mounting groove 205d-22 on the mounting plate 205d-21, a moving block 205d-23 slidably disposed in the first mounting groove 205d-22, and a second elastic member 205d-24 disposed in the first mounting groove 205d-22 and connected to the moving block 205d-23. The second elastic member 205d-24 adopts a spring-like structure. The device is made of springs and elastic elements, preferably spring-supported, with a second mounting groove 205d-25 located at the end of the movable block 205d-23, a limiting plate 205d-26 hinged in the second mounting groove 205d-25 and abutting against the lever plate 205d-3, and a non-linear spring 205d-27 located between the limiting plate 205d-26 and the movable block 205d-23; the non-linear spring 205d-27 bends toward the drive part 204b.

[0057] When the scraper contacts the support column 202 and moves the mounting box 201, the lever 205d-3 moves with the support panel 203a-1 and abuts against the limiting plate 205d-26, causing the limiting plate 205d-26 to move. This causes the slider 205c-1 and the cleaning component 205c-2 to slide and contact the scraper. The bristles of the cleaning component 205c-2 are made of hard resin. After the bristles contact the scraper, the friction between them is greater than the sum of the elastic forces of the second elastic component 205d-24 and the non-elastic spring 205d-27.

[0058] When the support panel 203a-1 returns, the levers 205d-3 located on both sides of the limiting plate 205d-26, and the lever 205d-3 located after the return stroke, contact the limiting plate 205d-26, simultaneously compressing the second elastic element 205d-24 and the eccentric spring 205d-27. This causes the levers 205d-3 to miss the limiting plate 205d-26, and as the support panel 203a-1 moves again, they push the limiting plate 205d-26. d-26 and cleaning component 205c-2 continue to advance, cleaning the side of the scraper; compressing the second elastic component 205d-24 and the non-linear spring 205d-27 causes the limiting plate 205d-26 to rotate while retracting backward, so that the limiting plate 205d-26 rotates at a small angle, thus disengaging from the lever plate 205d-3, preventing the non-linear spring 205d-27 from undergoing large deformation changes, and increasing the elastic force of the non-linear spring 205d-27.

[0059] The connecting plate 205d-1 is provided with an abutting block 205d-28 that abuts against the side of the mounting plate 205d-21. When the mounting box 201 moves below the transmission belt 103, the mounting plate 205d-21 rotates, causing the limiting plate 205d-26 to be displaced from the push plate 205d-3, so that the slider 205c-1 and the cleaning part 205c-2 can smoothly slide back to the initial state. The mounting plate 205d-21 abuts against the abutting block 205d-28, so that the angle between the mounting plate 205d-21 and the connecting plate 205d-1 is an obtuse angle. When it contacts the scraper again, the mounting plate 205d-21 can smoothly return to its original position, and the limiting plate 205d-26 can be pushed again by the moving push plate 205d-3 to perform cyclic cleaning of the scraper.

[0060] The remaining structure is the same as that in Example 2.

[0061] During use, the entire coal cleaning unit 200 is installed below the heavy-duty sealed-bottom chute scraper conveyor via the two fixing plates 101 of the installation unit 100. When the scraper conveyor rotates, the scraper abuts against the support column 202, simultaneously driving the installation box 201 and the transmission belt 103 to move. When the installation box 201 moves, the drive rod 204b-21 slides along the corrugated groove 104a, cooperating with the reset part 204a, causing the support panel 203a-1 to move back and forth cyclically, thereby driving the vibrating column 203d to cyclically impact the scraper, cleaning one side of the scraper surface. At the same time, when the support panel 203a-1 moves, the drive rod 204b-21 slides along the corrugated groove 104a, cooperating with the reset part 204a, causing the support panel 203a-1 to move back and forth cyclically, thereby driving the vibrating column 203d to cyclically impact the scraper, cleaning one side of the scraper surface. The push plate 205d-3 moves the limiting plate 205d-26, thereby controlling the movement of the cleaning component 205c-2 to clean the other side of the scraper. Both sides of the scraper are cleaned. The amplifying component 204b-3 amplifies the travel of the drive rod 204b-21 along the corrugated groove 104a when it is converted into the movement of the support panel 203a-1, increasing the impact force of the vibrating column 203d. At the same time, the increased travel of the support panel 203a-1 ensures that the cleaning component 205c-2 can smoothly slide over the entire scraper during the process of contacting and separating the scraper from the support column 202, thus cleaning the scraper.

[0062] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A coal cleaning device for a coal mine scraper conveyor, characterized in that: include, The mounting unit (100) includes two fixed plates (101), three rollers (102) rotatably disposed between the two fixed plates (101), a transmission belt (103) sleeved on the three rollers (102), and a limiting strip (104) disposed on the arc-shaped side of the fixed plate (101) for limiting the transmission belt (103), wherein one side of the fixed plate (101) is arc-shaped; and, The coal cleaning unit (200) includes a plurality of mounting boxes (201) disposed on the transmission belt (103), two sets of support columns (202) disposed on the side of the mounting box (201), a vibration assembly (203) disposed inside the mounting box (201), a drive assembly (204) disposed between the vibration assembly (203) and one of the limiting strips (104), and a cleaning assembly (205) disposed on the side of the mounting box (201). The vibration assembly (203) includes a sliding part (203a) slidably disposed at the bottom of the mounting box (201) and connected to the drive assembly (204), a plurality of mounting rods (203b) disposed on the top surface of the sliding part (203a), a plurality of connecting rods (203c) disposed on the mounting rods (203b), and a vibration column (203d) disposed at the end of the connecting rods (203c) and slidably passing through the mounting box (201); the vibration column (203d) is on the same side as the support column (202); The sliding part (203a) includes a support panel (203a-1) connected to the mounting rod (203b), and a sliding member (203a-2) disposed below the support panel (203a-1) and slidably connected to the mounting box (201). The drive assembly (204) includes a reset part (204a) disposed between the support panel (203a-1) and the mounting box (201), and a drive part (204b) disposed between the support panel (203a-1) and the limiting strip (104). The drive unit (204b) includes a rotating plate (204b-1) rotatably disposed at the bottom of the mounting box (201), a drive member (204b-2) slidably disposed on the mounting box (201) and located between one side of the rotating plate (204b-1) and the limiting strip (104), and an enlarged member (204b-3) disposed between the other side of the rotating plate (204b-1) and the support panel (203a-1). The limiting strip (104) is provided with a corrugated groove (104a), and the driving member (204b-2) includes a driving rod (204b-21) that is slidably disposed on the mounting box (201) and slidably abuts against the corrugated groove (104a). The other end of the driving rod (204b-21) abuts against the rotating plate (204b-1).

2. The coal cleaning device for a coal mine scraper conveyor according to claim 1, characterized in that: The enlarged component (204b-3) includes a fixed cylinder (204b-31) disposed on the mounting box (201), a telescopic rod (204b-32) slidably disposed on the fixed cylinder (204b-31), a connecting pipe (204b-33) disposed at the bottom end of the fixed cylinder (204b-31) and having at least one of them, and a pressing rod (204b-34) slidably disposed in the connecting pipe (204b-33) and abutting against one side of the rotating plate (204b-1). The rotating plate (204b-1) is provided with a sliding groove (204b-11), and the telescopic rod (204b-32) passes through the sliding groove (204b-11) and abuts against the support panel (203a-1).

3. The coal cleaning device for a coal mine scraper conveyor according to any one of claims 1 to 2, characterized in that: The reset part (204a) includes a storage groove (204a-1) disposed at the end of the support panel (203a-1), and a first elastic member (204a-2) disposed in the storage groove (204a-1) and abutting against the mounting box (201).

4. The coal cleaning device for a coal mine scraper conveyor according to any one of claims 1 to 2, characterized in that: The cleaning assembly (205) includes an inverted bracket (205a) disposed at the bottom of the outer side of the mounting box (201), a mounting part (205b) disposed in the inverted bracket (205a), a cleaning part (205c) slidably disposed on the mounting part (205b), and a transmission part (205d) disposed between the cleaning part (205c) and the support panel (203a-1). The mounting box (201) is provided with a through groove (201a), and the transmission part (205d) passes through the through groove (201a) and is connected to the support panel (203a-1).

5. The coal cleaning device for a coal mine scraper conveyor according to claim 4, characterized in that: The mounting part (205b) includes a rotating shaft (205b-1) rotatably disposed at one end of the C-shaped frame (205a), two sliding rods (205b-2) disposed on the rotating shaft (205b-1), and a counterweight (205b-3) disposed at the end of the sliding rods (205b-2). The C-shaped frame (205a) has a connecting groove (205b-4) on one side, and the counterweight (205b-3) is slidably inserted into the connecting groove (205b-4). The connecting groove (205b-4) is located near the drive unit (204b).

6. The coal cleaning device for a coal mine scraper conveyor according to claim 5, characterized in that: The cleaning unit (205c) includes a slider (205c-1) slidably disposed on the slider (205b-2) and a cleaning component (205c-2) disposed on the slider (205c-1). The transmission part (205d) includes a connecting plate (205d-1) disposed on the slider (205c-1) and a transmission component (205d-2) hinged to the end of the connecting plate (205d-1). The support panel (203a-1) has multiple levers (205d-3) on its side, and the levers (205d-3) move against the transmission component (205d-2).

7. The coal cleaning device for a coal mine scraper conveyor according to claim 6, characterized in that: The transmission component (205d-2) includes a mounting plate (205d-21) hinged to the connecting plate (205d-1), a first mounting groove (205d-22) on the mounting plate (205d-21), a moving block (205d-23) slidably disposed in the first mounting groove (205d-22), and a component disposed in the first mounting groove (205d-22) and connected to the moving block (205d-23). The second elastic element (205d-24), the second mounting groove (205d-25) disposed at the end of the moving block (205d-23), the limiting plate (205d-26) which is hinged in the second mounting groove (205d-25) and abuts against the lever plate (205d-3), and the non-linear spring (205d-27) disposed between the limiting plate (205d-26) and the moving block (205d-23); The non-linear spring (205d-27) bends toward the drive part (204b), and the connecting plate (205d-1) is provided with an abutting block (205d-28) that abuts against the side of the mounting plate (205d-21).

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