Scraper conveyor

Abstract

The present application relates to a kind of scraper conveyors, including rack, chain, multiple scrapers, top plate and drive adjustment component, the chain is annularly arranged on the rack, multiple the scrapers are spaced apart on the chain, the top plate is movably arranged on the rack in first direction, the top plate is in the first direction in the space that the chain surrounds, the top plate abuts or adjacent to the scraper, the drive adjustment component is arranged on the rack, the drive adjustment component is connected with the top plate to drive the top plate to move.The scraper conveyor of the present application, by drive adjustment component drives the top plate to move upwards, so that the top plate is attached to the lower end of the scraper, so as to ensure that the scraper pushes the coal on the top plate, so as to ensure the conveying efficiency of the scraper conveyor to coal.

Description

Technical Field

[0001] This invention relates to the field of coal mining technology, and more specifically to a scraper conveyor. Background Technology

[0002] After prolonged operation, conventional scraper conveyors in coal mines may encounter several problems: coal falling onto the pallets can cause the pallets to sink due to the impact, leading to a widening gap between the scraper and the pallets, leaving a thick layer of coal on the pallets and affecting conveying efficiency; some coal may also fall onto the chain, causing coal dust to adhere to one side of the chain, which in turn affects the meshing force between the drive gears and the chain. Summary of the Invention

[0003] The present invention aims to at least partially solve one of the technical problems in the related art.

[0004] Therefore, embodiments of the present invention propose a scraper conveyor that has the advantages of being able to move the pallet upward and automatically clean the coal ash on the chain.

[0005] According to an embodiment of the present invention, a scraper conveyor includes a frame, a chain, a plurality of scrapers, a top plate, and a drive adjustment assembly. The chain is arranged in a ring on the frame, and the plurality of scrapers are spaced apart on the chain. The top plate is movably arranged on the frame in a first direction, and the top plate is located within the space surrounded by the chain in the first direction. The top plate abuts against or is adjacent to the scrapers. The drive adjustment assembly is arranged on the frame and is connected to the top plate to drive the top plate to move.

[0006] The scraper conveyor of this embodiment of the invention drives the top plate to move upward by driving the adjustment component, so that the top plate and the lower end of the scraper are in contact, thereby ensuring that the scraper pushes the coal on the top plate, thus ensuring the coal conveying efficiency of the scraper conveyor of this embodiment of the invention.

[0007] In some embodiments, the frame is provided with a first mounting hole;

[0008] The drive adjustment component includes: A first drive motor is mounted on the frame and located outside the frame; A screw, which is rotatably mounted on the frame, passes through the first mounting hole and is connected to the output end of the first drive motor for transmission. Nut seat, the nut seat being mounted on the screw; and A first connecting arm, one end of which is hinged to the nut seat, and the other end of which is hinged to the top plate.

[0009] In some embodiments, both the first drive motor and the screw are slidably mounted on the frame in the first direction; The drive adjustment component further includes: A base plate, fixedly mounted on the frame, is located within the space encircled by the chain in the first direction; and The second connecting arm has one end hinged to the nut seat and the other end hinged to the base plate. The second connecting arm and the first connecting arm are symmetrical about the screw.

[0010] In some embodiments, the drive adjustment assembly further includes a sliding limit member, the sliding limit member comprising: A slider, which is slidably disposed in the first mounting hole along the first direction, is a square block; A baffle plate is fixedly connected to the slider. The baffle plate is located on the outside of the frame and fits against the frame to cover the first mounting hole. The baffle plate and the slider are provided with a first through hole through both of them. The screw is rotatably disposed in the first through hole. A slide rail, fixedly mounted on the frame, extending along the first direction, and having a groove on it; and The mounting plate has a first drive motor mounted on it. The mounting plate is provided with a slide bar, which is fitted into the slide groove so that the mounting plate and the slider can slide in the first direction.

[0011] In some embodiments, the slide bar includes a connecting segment and a limiting protrusion, the connecting segment connecting the limiting protrusion and the mounting plate, the limiting protrusion protruding from the connecting segment in a second direction perpendicular to the first direction, and the slide groove matching the slide bar; the sliding limiting member further includes an elastic member, one end of which is connected to the mounting plate, and the other end of which is connected to the baffle plate to form a force on the baffle plate toward the frame.

[0012] In some embodiments, the sliding limiting member further includes an inner ring sleeve and an outer ring sleeve, the inner ring sleeve being fixedly disposed on the baffle plate and sleeved on the screw, the outer ring sleeve being fixedly disposed on the mounting plate and sleeved on the inner ring sleeve, the outer contour of the inner ring sleeve and the inner contour of the outer ring sleeve being polygonal; and / or, the elastic member being a spring and sleeved on the outer ring sleeve.

[0013] In some embodiments, the scraper conveyor further includes a cleaning assembly comprising two clamping plates disposed on the frame, the two clamping plates being located on opposite sides of the chain in the first direction, and each clamping plate having a brush head on the side adjacent to the chain, the brush head being in contact with the chain.

[0014] In some embodiments, the frame is provided with a second mounting hole; The cleaning component further includes: A second drive motor is mounted on the frame. A drive gear, which is connected to the output shaft of the second drive motor; Two racks extend along the first direction and are slidably connected to the frame. The two racks are located on both sides of the drive gear and mesh with the drive gear. The clamping plate passes through the second mounting hole and is connected to the racks so that the second drive motor can drive the two clamping plates to move closer to each other or further away from each other.

[0015] In some embodiments, the card plate includes a plate body, a brush plate, and a connecting rod. The plate body is provided with a slot, the brush plate is provided with a block, the block is fitted into the slot, the brush plate has the brush head, and the connecting rod passes through the second mounting hole, connecting the plate body and the rack.

[0016] In some embodiments, the scraper conveyor further includes a protective plate disposed on the frame, the protective plate being located on the side of the chain away from the top plate, and the projection surface of the protective plate on the top plate in the first direction covering the projection surface of the chain on the top plate. Attached Figure Description

[0017] Figure 1 This is one of the structural schematic diagrams of the scraper conveyor according to an embodiment of the present invention; Figure 2 This is a second schematic diagram of the scraper conveyor according to an embodiment of the present invention; Figure 3 This is one of the partial structural schematic diagrams of the scraper conveyor according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of the drive adjustment component according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the sliding limit member and the first drive motor according to an embodiment of the present invention; Figure 6 This is a schematic diagram of the sliding limiting component according to an embodiment of the present invention; Figure 7This is a second partial structural schematic diagram of the scraper conveyor according to an embodiment of the present invention; Figure 8 This is one of the structural schematic diagrams of the cleaning component according to an embodiment of the present invention; Figure 9 This is a second schematic diagram of the cleaning component according to an embodiment of the present invention; Figure 10 This is a schematic diagram of the plate structure according to an embodiment of the present invention; Figure 11 This is a schematic diagram of the chain, fixing component, and scraper according to an embodiment of the present invention; Figure 12 This is a schematic diagram of the chain and fixing components according to an embodiment of the present invention; Figure label: 100. Scraper conveyor; 1. Rack; 2. Chain; 3. Scraper; 4. Top slab; 5. Drive adjustment assembly; 51. First drive motor; 52. Screw; 53. Nut seat; 54. First connecting arm; 55. Base plate; 56. Second connecting arm; 57. Sliding limit component; 571. Slider; 572. Baffle plate; 573. Slide rail; 574. Mounting plate; 5741. Slide bar; 575. Elastic element; 576. Inner ring sleeve; 577. Outer ring sleeve; 578. Sealing ring; 6. Cleaning components; 61. Card plate; 611. Brush head; 612. Plate body; 6121. Card slot; 613. Brush plate; 6131. ​​Card block; 614. Connecting rod; 62. Second drive motor; 63. Drive gear; 64. Rack; 65. Sealing plate; 66. Mounting bracket. 7. Protective panels; 8. Fixing assembly; 81. Hinge; 82. Fixing plate; 83. Locking bolt; 84. Locking nut. 9. Hopper, 10. Conveyor motor, 11. Driven shaft, 12. Hydraulic rod, 13. Bearing housing. Detailed Implementation

[0018] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0019] The following is a reference to the appendix. Figures 1 to 12 The scraper conveyor 100 of the present invention will be described in detail in this embodiment.

[0020] The scraper conveyor 100 of this embodiment includes a frame 1, a chain 2, a plurality of scrapers 3, a top plate 4, and a drive adjustment assembly 5. The chain 2 is arranged in a ring on the frame 1, the plurality of scrapers 3 are spaced apart on the chain 2, and the top plate 4 is positioned in a first direction (e.g., in the first direction). Figure 1 The top plate 4 is movably mounted on the frame 1 in the vertical direction. The top plate 4 is located in the space surrounded by the chain 2 in the first direction. The top plate 4 abuts against or is adjacent to the scraper 3. The drive adjustment assembly 5 is mounted on the frame 1 and is connected to the top plate 4 to drive the top plate 4 to move.

[0021] The scraper conveyor 100 of this embodiment further includes a hopper 9, a conveying motor 10, a drive shaft, and a driven shaft 11. The hopper 9 is located on one side of the frame 1 in the extending direction (e.g., Figure 1 (On the left side of the frame 1), hopper 9 is used for pouring coal, which falls from hopper 9 onto top plate 4. Conveyor motor 10 is located on this side of frame 1, drive shaft is rotatably located on this side of frame 1, and driven shaft 11 is rotatably located on the other side of frame 1. Conveyor motor 10 is connected to drive shaft. Both drive shaft and driven shaft 11 are equipped with conveying gears. Chain 2 is sleeved on the conveying gears on drive shaft and driven shaft 11. (See reference...) Figure 1 The conveyor motor 10 drives the chain 2 to rotate clockwise, and the chain 2 drives multiple scrapers 3 to move clockwise, thereby conveying the coal on the top plate 4 from the left to the right.

[0022] In this embodiment of the invention, the drive adjustment component 5 drives the top plate 4 to move in the vertical direction. When the top plate 4 sinks due to the impact of coal, the drive adjustment component 5 drives the top plate 4 to move upward, so that the top plate 4 is in contact with the lower end of the scraper 3, thereby ensuring that the scraper 3 pushes the coal on the top plate 4, thereby ensuring the coal conveying efficiency of the scraper conveyor 100 in this embodiment of the invention.

[0023] Specifically, there are multiple drive adjustment components 5, and the multiple drive adjustment components 5 are located in the extension direction of the frame 1 (e.g., Figure 1 They are arranged at equal intervals on the frame 1 in the left and right directions as shown.

[0024] Furthermore, the frame 1 is provided with first mounting holes. Specifically, the front side of the frame 1 has three equally spaced first mounting holes, and correspondingly, the drive adjustment assembly 5 has three. Figure 3 and Figure 4As shown, the drive adjustment assembly 5 includes a first drive motor 51, a screw 52, ​​a nut seat 53, and a first connecting arm 54. The first drive motor 51 is mounted on the frame 1 and located outside the frame 1. The screw 52 is rotatably mounted on the frame 1 and passes through a first mounting hole to drive the output end of the first drive motor 51. The nut seat 53 is mounted on the screw 52. One end (lower end) of the first connecting arm 54 is hinged to the nut seat 53, and the other end (upper end) of the first connecting arm 54 is hinged to the top plate 4.

[0025] The first drive motor 51 is turned on, driving the screw 52 to rotate. This causes the nut seat 53 to move along the screw 52, ​​meaning the nut seat 53 moves forward or backward on the screw 52, ​​thus changing the angle between the first connecting arm 54 and the vertical plane, and adjusting the height of the top plate 4. For example, when the first drive motor 51 rotates forward, it drives the screw 52 to rotate forward, causing the nut seat 53 to move closer to the upper end of the first connecting arm 54, decreasing the angle between the first connecting arm 54 and the vertical plane, thereby increasing the height of the top plate 4. Conversely, when the first drive motor 51 rotates in reverse, it increases the angle between the first connecting arm 54 and the vertical plane, decreasing the height of the top plate 4.

[0026] The first drive motor 51 is located on the outside of the frame 1, that is, the top plate 4 and the first drive motor 51 are not opposite each other in the vertical direction. Therefore, when the top plate 4 is impacted by coal, the first drive motor 51 will not be directly subjected to the downward impact load, which is beneficial to protecting the service life of the first drive motor 51.

[0027] Specifically, the first drive motor 51 is a servo geared motor, including a servo motor and a reducer, and has a braking function. It can brake in the power-off (off) state, thereby fixing the screw 52 and preventing it from rotating, ensuring the support of the first connecting arm 54 for the top plate 4. Furthermore, the braking function of the first drive motor 51 can also improve the impact resistance of the top plate 4, reduce the sinking distance of the top plate 4, and extend the sinking time of the top plate 4.

[0028] In some embodiments, such as Figure 3 and Figure 4 As shown, the first drive motor 51 and the screw 52 are both slidably mounted on the frame 1 in the first direction. The drive adjustment assembly 5 further includes a base plate 55 and a second connecting arm 56. The base plate 55 is fixedly mounted on the frame 1 and is located within the space around the chain 2 in the first direction. One end (upper end) of the second connecting arm 56 is hinged to the nut seat 53, and the other end (lower end) of the second connecting arm 56 is hinged to the base plate 55. The second connecting arm 56 and the first connecting arm 54 are symmetrical about the screw 52.

[0029] The base plate 55 is fixedly mounted on the frame 1. When it is necessary to raise the height of the top plate 4, the first drive motor 51 is turned on, which drives the first connecting arm 54 and the second connecting arm 56 to rotate, so that the angle between the first connecting arm 54 and the second connecting arm 56 and the vertical plane becomes smaller, so that the height of the first drive motor 51 and the screw 52 rises, and the height of the top plate 4 is raised.

[0030] The first drive motor 51 and the screw 52 can slide vertically. Therefore, under long-term use, when the top plate 4 is impacted, the impact is mainly absorbed by the first connecting arm 54 and the second connecting arm 56. Under long-term impact, the top plate 4 slowly sinks. This height change of the top plate 4 mainly drives the rotation of the first connecting arm 54 and the second connecting arm 56, increasing their angle with the vertical plane. Simultaneously, the first drive motor 51 and the screw 52 lower synchronously, but the height drop distance of the first drive motor 51 and the screw 52 is half the height drop distance of the top plate 4, avoiding excessive load impact on the screw 52. It should be noted that the sinking of the top plate 4 due to impact is long-term and slow. The lateral displacement of the nut seat 53 caused by the rotation of the first connecting arm 54 and the second connecting arm 56, as well as the rotation angle of the screw 52, ​​are relatively small. The screw 52 may cause a slight rotation of the output shaft of the servo geared motor. For a long period, this slight rotation of the output shaft of the servo geared motor is acceptable.

[0031] Specifically, the screw 52 has two threaded sections with opposite directions of rotation. Each threaded section is equipped with a nut seat 53, a first connecting arm 54, and a second connecting arm 56. The first connecting arm 54 on the two threaded sections is symmetrical about the center of the top plate 4 in the front-rear direction, and the second connecting arm 56 on the two threaded sections is symmetrical about the center of the top plate 4 in the front-rear direction, thereby improving the support strength and load-bearing capacity of the top plate 4 and enhancing the stability of the top plate 4.

[0032] In some embodiments, such as Figures 3 to 6As shown, the drive adjustment assembly 5 further includes a sliding limit member 57, which includes a slider 571, a baffle plate 572, a slide rail 573, and a mounting plate 574. The slider 571 is slidably disposed in the first mounting hole along the first direction. The slider 571 is a square block and cannot rotate within the first mounting hole. The baffle plate 572 is fixedly connected to the slider 571 and is located on the outside of the frame 1. The baffle plate 572 fits against the frame 1 to cover the first mounting hole. The baffle plate 572 and the slider 571 are provided with a first through hole through them, and the screw 52 is rotatably disposed in the first through hole. The slide rail 573 is fixedly disposed on the frame 1. There are two slide rails 573, which are located on both sides of the baffle plate 572 respectively. The slide rails 573 extend along the first direction and are provided with grooves. The first drive motor 51 is mounted on the mounting plate 574, and the mounting plate 574 is provided with a slide bar 5741. The slide bar 5741 is installed in the slide groove so that the mounting plate 574 and the slider 571 can slide in the first direction.

[0033] The mounting plate 574 and the slide rail 573 cooperate to limit the up and down sliding of the first drive motor 51, ensuring the stability of the first drive motor 51 on the frame 1. The square slider 571, while sliding up and down with the screw 52, ​​also provides support for the screw 52, ​​improving the stability of the screw 52 on the frame 1. The baffle plate 572 is fixedly connected to the slider 571. The baffle plate 572 can cover the first mounting hole, preventing the first mounting hole from being exposed and preventing debris in the working environment from falling into the interior of the frame 1, the space between the top plate 4 and the bottom plate 55, and affecting the normal operation of the screw 52.

[0034] Furthermore, the slide bar 5741 includes a connecting section and a limiting protrusion. The connecting section connects the limiting protrusion and the mounting plate 574. The limiting protrusion protrudes from the connecting section in a second direction, which is perpendicular to the first direction. The slide groove matches the slide bar 5741. Figure 5 As shown, the second direction is the same as the left and right direction. The limiting protrusion protrudes from the connecting section in the left and right direction, so that the slide bar 5741 can form a limit in the front-back direction and the left and right direction through the cooperation of the limiting protrusion and the slide groove, preventing the mounting plate 574 and the slide rail 573 from disengaging, and further improving the stability of the first drive motor 51 and the frame 1.

[0035] In some embodiments, the sliding limit member 57 further includes an elastic member 575, one end of which is connected to the mounting plate 574, and the other end of which is connected to the baffle plate 572 to form a force on the baffle plate 572 toward the frame 1. In other words, the force of the elastic member 575 causes the baffle plate 572 to fit against the outer wall surface of the frame 1, thereby reducing the gap between the baffle plate 572 and the frame 1 and improving the sealing performance of the baffle plate 572 to the first mounting hole.

[0036] Furthermore, the sliding limit member 57 includes a sealing ring 578, which is sleeved on the baffle plate 572 and fits against the outer wall surface of the frame 1, thereby further improving the sealing performance of the baffle plate 572 to the first mounting hole.

[0037] Furthermore, the sliding limiting component 57 further includes an inner ring sleeve 576 and an outer ring sleeve 577. The inner ring sleeve 576 is fixedly mounted on the baffle plate 572 and sleeved on the screw 52. The outer ring sleeve 577 is fixedly mounted on the mounting plate 574 and sleeved on the inner ring sleeve 576. The outer contour of the inner ring sleeve 576 and the inner contour of the outer ring sleeve 577 are polygonal. The cooperation between the inner ring sleeve 576 and the outer ring sleeve 577 allows them to constrain each other, thereby increasing the integrity between the baffle plate 572 and the mounting plate 574, preventing relative rotation between the baffle plate 572 and the mounting plate 574, and improving the stability of the first drive motor 51 and the screw 52 during installation and operation on the frame 1.

[0038] Specifically, the elastic element 575 is a spring, which is sleeved on the outer ring 577. The spring has a simple structure, and the outer ring 577 can limit the spring's movement, ensuring the stability and reliability of the spring's installation.

[0039] In some embodiments, such as Figures 7 to 10 As shown, the scraper conveyor 100 further includes a cleaning assembly 6, which includes two clamping plates 61 mounted on the frame 1. The two clamping plates 61 are located on opposite sides of the chain 2 in this first direction. Each clamping plate 61 has a brush head 611 on its side adjacent to the chain 2, and the brush head 611 contacts the chain 2. Figure 8 As shown, the lower half of the chain 2 is provided with a retaining plate 61 on both the upper and lower sides. Both the upper and lower sides of the lower half of the chain 2 are in contact with the brush head 611. When the chain 2 is running, the chain 2 rotates continuously relative to the brush head 611, so that the brush head 611 can clean the coal ash on the chain 2, ensuring the meshing between the chain 2 and the gear, and ensuring the normal operation of the chain 2.

[0040] Specifically, the frame 1 is provided with a second mounting hole. The cleaning assembly 6 further includes a second drive motor 62, a drive gear 63, and two racks 64. The second drive motor 62 is mounted on the frame 1, the drive gear 63 is connected to the output shaft of the second drive motor 62, the racks 64 extend along the first direction, and are slidably connected to the frame 1. The two racks 64 are located on both sides of the drive gear 63 and mesh with the drive gear 63. The clamping plate 61 passes through the second mounting hole and is connected to the racks 64 so that the second drive motor 62 can drive the two clamping plates 61 to move closer or further apart. For example, as Figure 8 And and Figure 9As shown, the clamping plate 61 located on the upper side of the chain 2 is connected to the rack 64 located to the right of the drive gear 63, and the clamping plate 61 located on the lower side of the chain 2 is connected to the rack 64 located to the left of the drive gear 63. The second drive motor 62 drives the drive gear 63 to rotate clockwise. Figure 9 The second drive motor rotates counterclockwise, causing the rack 64 on the right and the upper plate 61 to descend, which in turn causes the rack 64 on the left and the lower plate 61 to descend, thus bringing the two plates 61 closer together. Conversely, the second drive motor 62 drives the drive gear 63 to reverse, causing the two plates 61 to move away from each other.

[0041] The second drive motor 62 drives the drive gear 63 to rotate. The drive gear 63 meshes with the two racks 64, thereby causing the clamping plates 61 on the two racks 64 to move closer or further apart. When it is necessary to clean the coal ash on the chain 2, the second drive motor 62 is controlled to drive the two clamping plates 61 closer together. When it is not necessary to clean the chain 2, the second drive motor 62 is controlled to drive the two clamping plates 61 further apart, so that the brush head 611 is disengaged from the chain 2.

[0042] Specifically, the second drive motor 62 is a servo geared motor, and the cleaning component 6 further includes a mounting bracket 66, which is fixedly mounted on the frame 1. The middle part of the mounting bracket 66 is spaced apart from the frame 1, and the second drive motor 62 is disposed in the middle part of the mounting bracket 66. The drive gear 63 is located between the middle part of the mounting bracket 66 and the frame 1.

[0043] like Figures 8 to 10 As shown, the card plate 61 includes a plate body 612, a brush plate 613, and a connecting rod 614. The plate body 612 has a slot 6121, and the brush plate 613 has a locking block 6131. ​​The locking block 6131 is installed in the slot 6121. The brush plate 613 has a brush head 611. The connecting rod 614 passes through a second mounting hole and connects the plate body 612 and the rack 64. The plate body 612 and the brush plate 613 are detachably connected through the cooperation of the slot 6121 and the locking block 6131, which facilitates the replacement and installation of the brush plate 613 and allows the brush head 611, which is the main part of the cleaning chain 2, to be disassembled and replaced.

[0044] Specifically, the cleaning component 6 further includes a sealing plate 65, which is mounted on the connecting rod 614. The sealing plate 65 is located on the outside of the frame 1, and protrudes from the connecting rod 614 in all directions. The sealing plate 65 can block and seal the second mounting hole, preventing debris in the working environment from falling into the frame 1 and affecting the normal operation of the chain 2.

[0045] like Figure 1 and Figure 2As shown, the scraper conveyor 100 further includes a protective plate 7, which is mounted on the frame 1. The protective plate 7 is located on the side (upper side) of the chain 2 away from the top plate 4, and its projection surface on the top plate 4 in this first direction covers the projection surface of the chain 2 on the top plate 4. The protective plate 7 provides protection to the upper side of the upper half of the chain 2, thereby reducing the amount of coal ash falling on the chain 2.

[0046] Specifically, the upper side of the protective plate 7 is inclined from top to bottom, and the end of the upper side of the protective plate 7 that is connected to the frame 1 is higher than the other end, thereby preventing coal or coal ash from accumulating on the upper side of the protective plate 7.

[0047] like Figure 11 and Figure 12 As shown, in this embodiment of the invention, the chain 2 has multiple fixing components 8 arranged at intervals along its length. Each fixing component 8 includes a hinge seat 81, a fixing plate 82, a locking bolt 83, and a locking nut 84. Two hinge seats 81 are arranged at intervals and are fixedly mounted on the chain 2. The fixing plate 82 is rotatably mounted on the hinge seat 81. The fixing plate 82 is Z-shaped and has a slotted hole. The scraper 3 has a mounting through hole corresponding to the slotted hole. The locking bolt 83 is located in the mounting through hole of the scraper 3 and the slotted hole of the fixing plate 82. The locking bolt 83 and the locking nut 84 are connected in cooperation. That is, the scraper 3 is connected to the chain 2 through the fixing components 8. The scraper 3 can be disassembled by first removing the locking bolt 83 and the locking nut 84, and then rotating and unfolding the fixing plate 82.

[0048] The scraper 3 is L-shaped and includes a vertical section and a horizontal section. The vertical section is connected to the chain 2. When it moves to the upper side of the chain 2 with the chain 2, the horizontal section is adjacent to or fits against the top plate 4.

[0049] like Figure 1 and Figure 2 As shown, the scraper conveyor 100 of this embodiment further includes a hydraulic rod 12 and a bearing seat 13. The frame 1 has a strip-shaped opening on the right side. The bearing seat 13 is slidably disposed in the strip-shaped opening. The driven shaft 11 is disposed on the bearing seat 13. The hydraulic rod 12 is disposed on the outside of the frame 1. The hydraulic rod 12 has a telescopic end, which is connected to the bearing seat 13. The hydraulic rod 12 can drive the bearing seat 13 to slide horizontally in the strip-shaped opening. The bearing seat 13 can pull the driven shaft 11 to move laterally, thereby ensuring the tension of the chain 2, ensuring the normal operation of the scraper 3 and the transportation of coal.

[0050] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0051] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0052] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0053] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0054] In this invention, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0055] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A scraper conveyor (100), characterized in that, include: A frame (1) is provided with a first mounting hole; Chain (2), the chain (2) is arranged in a ring on the frame (1); Multiple scrapers (3) are spaced apart on the chain (2); Top plate (4), which is movably disposed on the frame (1) in a first direction, the top plate (4) is located in the space surrounded by the chain (2) in the first direction, and the top plate (4) abuts against or is adjacent to the scraper (3). A drive adjustment assembly (5) is mounted on the frame (1) and connected to the top plate (4) to move the top plate (4). The drive adjustment assembly (5) includes: The first drive motor (51) is mounted on the frame (1) and is located outside the frame (1); The screw (52) is rotatably mounted on the frame (1). The screw (52) passes through the first mounting hole and is connected to the output end of the first drive motor (51). The first drive motor (51) and the screw (52) are both slidably mounted on the frame (1) in the first direction. Nut seat (53), said nut seat (53) is mounted on said screw (52); The first connecting arm (54) has one end hinged to the nut seat (53) and the other end hinged to the top plate (4); The base plate (55) is fixed on the frame (1) and is located in the space surrounded by the chain (2) in the first direction; The second connecting arm (56) has one end hinged to the nut seat (53) and the other end hinged to the base plate (55). The second connecting arm (56) and the first connecting arm (54) are symmetrical about the screw (52). A sliding limit member (57), the sliding limit member (57) comprising: A slider (571) is slidably disposed in the first mounting hole along the first direction, and the slider (571) is a square block; A baffle plate (572) is fixedly connected to the slider (571). The baffle plate (572) is located on the outside of the frame (1). The baffle plate (572) fits against the frame (1) to cover the first mounting hole. The baffle plate (572) and the slider (571) are provided with a first through hole through them. The screw (52) is rotatably disposed in the first through hole. A slide rail (573) is fixedly mounted on the frame (1), the slide rail (573) extends along the first direction, and the slide rail (573) is provided with a groove; and Mounting plate (574), the first drive motor (51) is mounted on the mounting plate (574), the mounting plate (574) is provided with a slide bar (5741), the slide bar (5741) is installed in the slide groove so that the mounting plate (574) and the slider (571) are slidably connected in the first direction.

2. The scraper conveyor (100) according to claim 1, characterized in that, The slide bar (5741) includes a connecting section and a limiting protrusion. The connecting section connects the limiting protrusion and the mounting plate (574). The limiting protrusion protrudes from the connecting section in a second direction, which is perpendicular to the first direction. The slide groove matches the slide bar (5741). The sliding limiter (57) further includes an elastic element (575), one end of which is connected to the mounting plate (574), and the other end of which is connected to the shield (572) to form a force on the shield (572) toward the frame (1).

3. The scraper conveyor (100) according to claim 2, characterized in that, The sliding limiting member (57) further includes an inner ring sleeve (576) and an outer ring sleeve (577). The inner ring sleeve (576) is fixed on the baffle plate (572) and sleeved on the screw (52). The outer ring sleeve (577) is fixed on the mounting plate (574) and sleeved on the inner ring sleeve (576). The outer contour of the inner ring sleeve (576) and the inner contour of the outer ring sleeve (577) are polygonal. And / or, the elastic member (575) is a spring and the spring is sleeved on the outer ring sleeve (577).

4. The scraper conveyor (100) according to claim 1, characterized in that, The cleaning component (6) further includes two clamping plates (61) disposed on the frame (1). The two clamping plates (61) are respectively located on both sides of the chain (2) in the first direction. The clamping plate (61) is provided with a brush head (611) on the side adjacent to the chain (2). The brush head (611) is in contact with the chain (2).

5. The scraper conveyor (100) according to claim 4, characterized in that, The frame (1) is provided with a second mounting hole; The cleaning component (6) further includes: The second drive motor (62) is mounted on the frame (1); A drive gear (63) is connected to the output shaft of the second drive motor (62); Two racks (64) extend along the first direction and are slidably connected to the frame (1). The two racks (64) are located on both sides of the drive gear (63) and mesh with the drive gear (63). The clamping plate (61) passes through the second mounting hole and is connected to the racks (64) so ​​that the second drive motor (62) drives the two clamping plates (61) to move closer to each other or further away from each other.

6. The scraper conveyor (100) according to claim 5, characterized in that, The card plate (61) includes a plate body (612), a brush plate (613), and a connecting rod (614). The plate body (612) is provided with a slot, and the brush plate (613) is provided with a block. The block is installed in the slot. The brush plate (613) has a brush head (611). The connecting rod (614) passes through the second mounting hole and connects the plate body (612) and the rack (64).

7. The scraper conveyor (100) according to claim 5, characterized in that, It further includes a protective plate (7) which is disposed on the frame (1). The protective plate (7) is located on the side of the chain (2) away from the top plate (4). The projection surface of the protective plate (7) on the top plate (4) in the first direction covers the projection surface of the chain (2) on the top plate (4).

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