A turntable mechanism for right-angle turns in a scraper conveyor, the scraper conveyor itself, and its usage.

Abstract

This invention discloses a turntable mechanism for right-angle turns of a scraper conveyor, as well as the scraper conveyor and its usage method, belonging to the field of scraper conveyor technology. The turntable mechanism for right-angle turns of a scraper conveyor includes an arc-shaped frame, and further includes: two connecting frames arranged at both ends of the arc-shaped frame, which are used to connect the scraper conveyor and a transfer conveyor respectively; a turntable section fixed to the side of the arc-shaped frame near the center to reduce the load on the scraper conveyor during operation; and an auxiliary transfer mechanism located on the side of the arc-shaped frame away from the turntable section to assist in the transfer of accumulated material at the arc-shaped frame; wherein a transmission transfer component is also provided between the turntable section and the auxiliary transfer mechanism. This invention, through turntable drive, material feeding assistance, and unidirectional transmission design, effectively solves the problems of insufficient power, material accumulation, and frictional resistance during right-angle turns of the scraper conveyor, significantly improving conveying efficiency and reliability.

Description

Technical Field

[0001] This invention relates to the field of scraper conveyor technology, specifically to a turntable mechanism for right-angle turns in a scraper conveyor, as well as the scraper conveyor and its usage method. Background Technology

[0002] A scraper conveyor is a continuous transport device that uses a moving scraper chain to transport bulk materials within a closed rectangular cross-section shell. Because the scraper chain is completely buried in the material during transport, it is called a scraper conveyor. This machine can transport materials horizontally, as well as inclined or vertically. It can be used as a single unit or in combination with multiple units. It can also be used for multiple feeding and unloading points.

[0003] Traditional scraper conveyors with turning devices mostly rely on the scraper conveyor's own power for turning operations, and cannot make good use of external power to assist in the turning operation. This makes it easy for insufficient power to occur when there is too much material, and in severe cases, blockages may occur, which will affect the material transportation efficiency, or even stop the entire production, thus affecting work efficiency. Summary of the Invention

[0004] The purpose of this invention is to solve the problems existing in the prior art, and to propose a turntable mechanism for right-angle turning of a scraper conveyor, as well as the scraper conveyor and its usage method.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A turntable mechanism for right-angle turns in a scraper conveyor includes an arc-shaped frame and further includes: The connecting frame has two components arranged at both ends of the arc-shaped frame, and the two connecting frames are used to connect the scraper conveyor and the transfer conveyor, respectively. The turntable section is fixed on the side of the arc-shaped frame near the center, and is used to reduce the load on the scraper conveyor during operation. An auxiliary transfer mechanism is provided on the side of the arc-shaped frame away from the turntable, and is used to assist in the transfer of materials accumulated at the arc-shaped frame. A transmission and transfer assembly is also provided between the turntable and the auxiliary transfer mechanism.

[0006] Preferably, both the arc-shaped frame and the connecting frame are configured as a double-layer structure, and arc-shaped baffles are provided on both sides of the arc-shaped frame.

[0007] Preferably, the turntable includes a turntable frame fixed on an arc-shaped frame, two rotating rods rotatably connected to the turntable frame, and a turntable body connected to the rotating rods. The arc-shaped frame has a movable groove for the movement of the turntable body, and a baffle plate fixed on the arc-shaped frame to move against the turntable body.

[0008] Preferably, a drive motor is fixed on the turntable frame, the output shaft of the drive motor is connected to a drive shaft, a main bevel gear is provided at the end of the drive shaft, and two auxiliary bevel gears that mesh with the main bevel gear are provided on the two rotating rods, with the two auxiliary bevel gears rotating in opposite directions.

[0009] Preferably, the auxiliary transfer mechanism includes an arc-shaped support plate fixed on the arc-shaped frame, a support plate fixed on the arc-shaped support plate, a rotating rod rotatably connected to the support plate, a first connecting plate fixed to the rotating rod, a second connecting plate movably connected to the first connecting plate, and a material feeding component rotatably connected to the baffle plate.

[0010] Preferably, the material feeding component includes a rotating cylinder rotatably connected to a baffle plate, a housing fixedly connected to the rotating cylinder, and a material feeding plate slidably connected to the housing. An ear plate is fixedly provided at the bottom of the housing, and a reciprocating screw is rotatably connected to the ear plate. A sleeve is threadedly connected to the reciprocating screw, and the sleeve passes through the housing and is fixedly connected to the material feeding plate.

[0011] Preferably, the end of the reciprocating lead screw is provided with a driven bevel gear, the arc-shaped support plate is fixed with an arc-shaped toothed ring that meshes with the driven bevel gear, and the driven bevel gear is configured as a one-way bevel gear with a flywheel structure.

[0012] Preferably, both the turntable frame and the support plate are provided with protective shells, and a transmission rod is rotatably connected between the two protective shells. Both ends of the transmission rod are provided with transmission bevel gears. A first bevel gear that meshes with one of the transmission bevel gears is provided on the rotating rod, and a second bevel gear that meshes with the other transmission bevel gear is provided on the rotating rod. An auxiliary lever plate is also provided on the rotating rod.

[0013] A scraper conveyor includes a turntable mechanism for right-angle turning as described above, and also includes a scraper conveyor body and a chain plate component slidably connected between the scraper conveyor body and the turntable mechanism. The scraper conveyor body is located at the end of the turntable mechanism, and the inner sidewalls of the arc frame and the connecting frame are provided with slides that cooperate with the scraper in the chain plate component.

[0014] This invention also discloses a method of using a scraper conveyor, comprising the following steps: S1: Connect the two connecting frames of the turntable mechanism to the scraper conveyor body and the transfer machine respectively to ensure that the scraper of the chain plate component matches the slide rail inside the arc frame and the connecting frame; S2: The drive motor drives the drive shaft to rotate, and the main bevel gear meshes with the secondary bevel gear, causing the two rotating rods to rotate in opposite directions, which in turn drives the turntable to rotate, making the linear speed of the turntable consistent with the speed of the chain plate in the straight section, thus reducing frictional resistance when turning. S3: The rotating rod drives the first bevel gear to mesh with the transmission bevel gear on the transmission rod. The rotation of the transmission rod drives the auxiliary plate to move the material at the corner of the arc frame, so as to avoid the material from accumulating at the right angle of the arc frame. When the transmission rod rotates, it drives the rotating rod to rotate through the transmission bevel gear. The rotating rod pulls the material feeding component to move through the first connecting plate and the second connecting plate. The material feeding plate extends and retracts relative to the casing under the action of the reciprocating screw, pushing the outer ring material to the inner ring to avoid centrifugal accumulation. In addition, it works with the chain plate to move the material at the corner of the arc frame from the side closer to the scraper conveyor body to the side closer to the transfer machine. Meanwhile, the driven bevel gear is a one-way bevel gear, ensuring that the material conveying plate only completes its extension and retraction stroke when moving forward, and remains retracted into the housing when returning, so as not to affect the material conveying. S4: After the material conveying is completed, turn off the drive motor, check the wear of the transmission components through the protective shell, and replace the damaged material feeding plate or turntable.

[0015] As can be seen from the above technical solutions, the present invention has the following beneficial effects: 1. In this invention, the problems of insufficient power, material accumulation and frictional resistance when the scraper conveyor makes a right-angle turn are effectively solved by the design of turntable drive, material feeding assistance and unidirectional transmission, which significantly improves the conveying efficiency and reliability; 2. In this invention, the drive motor drives the drive shaft to rotate, the main bevel gear drives two auxiliary bevel gears, causing the rotating rod to rotate in the opposite direction, and the turntable rotates synchronously. Matching the speed of the chain plate components, the scraper speed at the turning point is consistent with that of the straight section, converting sliding friction into rolling friction, reducing frictional resistance, and solving the problem that traditional scraper conveyors mainly rely on their own power to traction the scraper chain to turn when making right-angle turns, which easily leads to material accumulation. 3. In this invention, when the bevel gear set is working, it drives the rotating rod to rotate. The first bevel gear drives the transmission bevel gear at one end of the transmission rod. The transmission rod transmits power to the transmission bevel gear at the other end, driving the second bevel gear and the rotating rod, thereby driving the auxiliary transfer mechanism to work. It works in conjunction with the turntable to assist in material conveying and avoid material accumulation. 4. In this invention, while the transmission and transfer assembly is linked to the turntable and the auxiliary transfer mechanism, the transmission rod rotates and drives the auxiliary lever to rotate synchronously, so that the auxiliary lever moves the material at the corner of the arc frame, further preventing the material from accumulating at the right angle of the arc frame and ensuring the material conveying efficiency. 5. In this invention, when the auxiliary transfer mechanism is working, the rotating rod is driven to rotate by an external force. The first connecting plate and the second connecting plate drive the sleeve to swing. The sleeve drives the rotating cylinder to swing relative to the baffle plate. When the sleeve swings towards the side closer to the scraper conveyor body, the ear plate at the bottom of the sleeve drives the reciprocating screw to rotate. The sleeve moves along the thread and pushes the material-pushing plate out of the sleeve. After the material-pushing plate extends, it pushes the material accumulated on the inside of the baffle plate towards the turntable body, avoiding the accumulation of material on the outer ring of the arc frame under the action of centrifugal force. At the same time, the extended material-pushing plate can cooperate with the chain plate to push the material at the corner of the arc frame from the side closer to the scraper conveyor body to the side closer to the transfer machine, effectively avoiding material accumulation. 6. In this invention, when the reciprocating screw rotates, the sleeve can move back and forth along the reciprocating screw for one round trip, that is, the sleeve moves from one end of the reciprocating screw to the other end and then back to the initial end, so that the material guide plate moves from not moving out of the rotating drum to moving out to the maximum distance and then retracting into the rotating drum and the sleeve housing. Moreover, since the driven bevel gear adopts a flywheel structure, it only engages the arc-shaped toothed ring when the sleeve housing moves towards the scraper conveyor side, avoiding the material guide plate moving out again and the material conveyed by the chain plate being pushed back when the sleeve housing swings back. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall structure of the turntable mechanism of the present invention. Figure 1 ; Figure 3 For the present invention Figure 2 Enlarged structural diagram of section A in the middle; Figure 4 This is a schematic diagram of the overall structure of the turntable mechanism of the present invention. Figure 2 ; Figure 5 This is a schematic diagram of the arc-shaped frame structure of the present invention; Figure 6 This is a cross-sectional structural diagram of the arc-shaped frame of the present invention; Figure 7 This is a partial structural diagram of the turntable section of the present invention; Figure 8 This is a schematic diagram of the auxiliary transfer mechanism of the present invention; Figure 9 This is a schematic diagram of the structure of the material-removing plate of the present invention when it is removed from the housing; Figure 10 This is a schematic diagram of the transmission and transfer assembly of the present invention; Figure 11 This is a schematic diagram of the driven bevel gear of the present invention.

[0017] In the diagram: 1. Arc-shaped frame; 101. Movable groove; 102. Baffle plate; 2. Connecting frame; 3. Turntable section; 301. Turntable frame; 302. Rotating rod; 3021. First bevel gear; 303. Turntable body; 4. Arc-shaped baffle; 5. Drive motor; 501. Drive shaft; 502. Main bevel gear; 503. Secondary bevel gear; 6. Arc-shaped support plate; 601. Support plate; 602. Rotating rod; 6021. Second bevel gear 603. First connecting plate; 604. Second connecting plate; 605. Arc-shaped toothed ring; 7. Material feeding component; 701. Rotary drum; 702. Sleeve; 703. Material feeding plate; 8. Ear plate; 801. Reciprocating screw; 8011. Driven bevel gear; 802. Sleeve; 9. Protective shell; 901. Transmission rod; 902. Transmission bevel gear; 10. Auxiliary feeding plate; 11. Scraper conveyor body; 12. Chain plate component; 13. Slide rail. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0019] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., 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 the invention and for simplifying the description, and do not 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 the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0020] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. 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 a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0021] To achieve the above objectives, the embodiments of the present invention adopt the following technical solutions: Reference Figure 1 , Figure 2 , Figure 4 , Figure 5 and Figure 6 This application discloses a turntable mechanism for right-angle turns in a scraper conveyor and a scraper conveyor. The scraper conveyor includes a scraper conveyor body 11 and a chain plate component 12 slidably connected between the scraper conveyor body 11 and the turntable mechanism. The turntable mechanism includes an arc-shaped frame 1, and further includes a connecting frame 2, a turntable part 3, and an auxiliary transfer mechanism. The arc-shaped frame 1 serves as the main frame of the turntable mechanism and adopts a double-layer structure design. Arc-shaped baffles 4 are provided on both sides to prevent material from overflowing at the corner during conveying. The inner sidewall of the arc-shaped frame 1 has a slide rail 13, which cooperates with the scraper of the chain plate component 12 to ensure smooth operation of the scraper at the turn. 2 is existing technology and will not be described in detail here; the connecting frame 2 also adopts a double-layer structure and is arranged at both ends of the arc frame 1, connecting to the scraper conveyor and the transfer conveyor respectively, to ensure a smooth transition of materials at the turning point; there are two connecting frames 2 arranged at both ends of the arc frame 1, and the two connecting frames 2 are used to connect the scraper conveyor and the transfer conveyor respectively; the turntable part 3 is fixed on the side of the arc frame 1 near the center to reduce the load on the scraper conveyor during operation; the auxiliary transfer mechanism is set on the side of the arc frame 1 away from the turntable part 3 to assist in the transfer of accumulated materials at the arc frame 1; among them, a transmission transfer component is also provided between the turntable part 3 and the auxiliary transfer mechanism; Specifically, when the turntable mechanism is in use, the two connecting frames 2 of the turntable mechanism are respectively connected to the scraper conveyor body 11 and the transfer machine to ensure that the scraper of the chain plate component 12 matches the slide rail 13 on the inner side of the arc frame 1 and the connecting frame 2. Then, the chain plate component 12 is controlled to move, so that the chain drives multiple scrapers to move between the turntable mechanism, the scraper conveyor and the transfer machine. The chain plate component 12 conveys and transfers materials. During this period, the turntable part 3 is controlled to run, which solves the problem that traditional scraper conveyors mainly rely on their own power to traction the scraper chain to turn when making right-angle turns, which easily leads to material accumulation. When the turntable part 3 is running, it drives the auxiliary transfer mechanism through the transmission transfer component to further assist in the transfer of materials accumulated at the right angle of the turntable mechanism, effectively avoiding material accumulation. Through the turntable drive, material feeding assistance and unidirectional transmission design, the problems of insufficient power, material accumulation and frictional resistance when the scraper conveyor makes right-angle turns are effectively solved, significantly improving the conveying efficiency and reliability.

[0022] Reference Figure 1 , Figure 3 , Figure 4 , Figure 6 and Figure 7As a preferred technical solution in this embodiment, the turntable part 3 further includes a turntable frame 301 fixed on the arc frame 1, two rotating rods 302 rotatably connected to the turntable frame 301, and a turntable body 303 connected to the rotating rods 302. The two rotating rods 302 are symmetrically arranged and rotatably connected to the turntable frame 301 through bearings. The bearings need to be lubricated regularly to reduce wear. The arc frame 1 is provided with a movable groove 101 for the movement of the turntable body 303. The movable groove 101 is made of wear-resistant alloy steel. A baffle plate 102 is fixed on the arc frame 1 to move against the turntable body 303. There is a small radial gap between the turntable body 303 and the movable groove 101 to avoid excessive tightness causing jamming or excessive looseness causing material leakage. The contact surface of the baffle plate 102 is made of wear-resistant lining plate. Furthermore, a drive motor 5 is fixed on the turntable frame 301. The output shaft of the drive motor 5 is connected to the drive shaft 501. A main bevel gear 502 is provided at the end of the drive shaft 501. Two rotating rods 302 are provided with secondary bevel gears 503 that mesh with the main bevel gear 502. The main bevel gear 502 drives the two secondary bevel gears 503 to rotate in opposite directions, thereby driving the rotating rods 302 and the turntable body 303 to rotate in opposite directions. The drive motor 5 can be connected to a reducer, and a backstop is installed on the output shaft of the reducer to prevent gear springback that may occur under heavy load. The turntable frame 301 is fixed to the side of the arc frame 1 near the center by welding or bolting. It is made of high-strength steel to ensure load-bearing capacity and stability. Its design must match the curvature of the arc frame 1 to adapt to the turning radius. After the drive motor 5 starts, it drives the rotating rod 302 to rotate through the bevel gear set. The two rotating rods 302 rotate in opposite directions, each driving the connected turntable body 303 to rotate. The turntable body 303 rotates in the movable groove 101, so that its linear velocity matches that of the chain plate component 12. The scraper of the auxiliary chain plate component 12 overcomes the turning resistance. The turntable body 303 should have guide grooves that cooperate with the scraper. The auxiliary drive of the turntable body 303 effectively distributes the load of the chain plate component 12 at the turning point and reduces the friction between the scraper and the arc frame 1.

[0023] Reference Figure 1 , Figure 2 , Figure 3 , Figure 8 , Figure 9 and Figure 11As a preferred technical solution in this embodiment, the auxiliary transfer mechanism further includes an arc-shaped support plate 6 fixed on the arc-shaped frame 1, a support plate 601 fixed on the arc-shaped support plate 6, a rotating rod 602 rotatably connected to the support plate 601, a first connecting plate 603 fixedly connected to the rotating rod 602, a second connecting plate 604 movably connected to the first connecting plate 603, and a material-pushing component 7 rotatably connected to the baffle plate 102. The arc-shaped support plate 6 is fixed to the outside of the arc-shaped frame 1 by welding or high-strength bolts, and the support plate 601 is vertically welded to the arc-shaped support plate 6. Thickened steel plates are used to bear the radial load of the rotating rod 602. Furthermore, the material feeding component 7 includes a rotating cylinder 701 rotatably connected to the baffle plate 102, a housing 702 fixedly connected to the rotating cylinder 701, and a material feeding plate 703 slidably connected to the housing 702. The rotating cylinder 701 is mounted in the baffle plate 102 via bearings. The housing 702 is welded to the rotating cylinder 701 and has a linear guide rail inside for guiding the sliding of the material feeding plate 703. An ear plate 8 is fixedly provided at the bottom of the housing 702. A reciprocating screw 801 is rotatably connected to the ear plate 8. A sleeve 802 is threadedly connected to the reciprocating screw 801. The sleeve 802 passes through the housing 702 and is fixedly connected to the material feeding plate 703. The rotating rod 602 is driven to rotate externally, which drives the casing 702 to swing through the first connecting plate 603 and the second connecting plate 604. The casing 702 drives the rotating drum 701 to swing relative to the baffle plate 102. When the casing 702 swings towards the side closer to the scraper conveyor body 11, the ear plate 8 at the bottom of the casing 702 drives the reciprocating screw 801 to rotate. The sleeve 802 moves along the thread, pushing the material pusher plate 703 out of the casing 702. After the material pusher plate 703 extends, it pushes the material accumulated inside the baffle plate 102 towards the turntable body 303, preventing the material from leaving the turntable body. Under the action of centrifugal force, the material accumulates on the outer ring of the arc frame 1. At the same time, the extended material-pushing plate 703 can cooperate with the chain plate 12 to push the material at the corner of the arc frame 1 from the side near the scraper conveyor body 11 to the side near the transfer machine. During this period, the sleeve 802 can move back and forth along the reciprocating screw 801, that is, the sleeve 802 moves from one end of the reciprocating screw 801 to the other end and then moves back to the initial end, so that the material-pushing plate 703 moves from not moving out of the rotating drum 701 to moving out to the maximum distance and then retracting into the rotating drum 701 and the sleeve 702. It should be noted that, in order to prevent the material feeding plate 703 from moving out again and pushing back the material conveyed by the chain plate 12 when the sleeve 702 swings back, a driven bevel gear 8011 is provided at the end of the reciprocating screw 801. An arc-shaped toothed ring 605 that meshes with the driven bevel gear 8011 is fixed on the arc-shaped support plate 6. The driven bevel gear 8011 is set as a one-way bevel gear with a flywheel structure. The flywheel structure is existing technology, which allows the driven bevel gear 8011 to drive the reciprocating screw 801 to rotate in one direction only. When the sleeve 702 swings towards the side closer to the scraper conveyor body 11, the meshing of the driven bevel gear 8011 and the arc-shaped toothed ring 605 will drive the reciprocating screw 801 to rotate, thereby causing the sleeve 802 to move back and forth along the axial direction of the reciprocating screw 801. When the sleeve 702 swings back, the driven bevel gear 8011 will idle and will not drive the reciprocating screw 801 to rotate.

[0024] Reference Figure 1 , Figure 3 , Figure 4 and Figure 10 As a preferred technical solution in this embodiment, both the turntable frame 301 and the support plate 601 are provided with protective shells 9. A transmission rod 901 is rotatably connected between the two protective shells 9. Both ends of the transmission rod 901 are provided with transmission bevel gears 902. The rotating rod 302 is provided with a first bevel gear 3021 that meshes with one of the transmission bevel gears 902, and the rotating rod 602 is provided with a second bevel gear 6021 that meshes with the other transmission bevel gear 902. The two protective shells 9 respectively cover the first bevel gear 3021 and the second bevel gear 6021, and are connected through the transmission rod 901 to form a closed transmission cavity to prevent dust or moisture from entering. An auxiliary lever plate 10 is also provided on the rotating rod 602. The transmission part of the rod should be lubricated with lubricating oil to avoid wear. The drive motor 5 drives the rotating rod 302 to rotate through the bevel gear set. The first bevel gear 3021 drives the transmission bevel gear 902 at one end of the transmission rod 901. The transmission rod 901 transmits power to the transmission bevel gear 902 at the other end, driving the second bevel gear 6021 and the rotating rod 602, thereby driving the auxiliary transfer mechanism to work. When the transmission rod 901 rotates, it drives the auxiliary deflector 10 to rotate synchronously, so that the auxiliary deflector 10 deflects the material at the corner of the arc frame 1, further preventing the material from accumulating at the right angle of the arc frame 1 and ensuring the material conveying efficiency.

[0025] This invention also discloses a method of using a scraper conveyor, comprising the following steps: S1: Connect the two connecting frames 2 of the turntable mechanism to the scraper conveyor body 11 and the transfer machine respectively, to ensure that the scraper of the chain plate 12 matches the slide rail 13 inside the arc frame 1 and the connecting frame 2. S2: The drive motor 5 drives the drive shaft 501 to rotate, the main bevel gear 502 and the secondary bevel gear 503 mesh, causing the two rotating rods 302 to rotate in opposite directions, driving the turntable body 303 to rotate, so that the linear speed of the turntable body 303 is consistent with the speed of the chain plate 12 in the straight section, reducing the frictional resistance when turning. S3: The rotating rod 302 drives the first bevel gear 3021 to mesh with the transmission bevel gear 902 on the transmission rod 901. The rotation of the transmission rod 901 drives the auxiliary plate 10 to move the material at the corner of the arc frame 1, so as to prevent the material from accumulating at the right angle of the arc frame 1. When the transmission rod 901 rotates, it drives the rotating rod 602 to rotate through the transmission bevel gear 902. The rotating rod 602 pulls the material feeding component 7 to move through the first connecting plate 603 and the second connecting plate 604. Under the action of the reciprocating screw 801, the material feeding plate 703 extends and retracts relative to the housing 702, pushing the outer ring material to the inner ring to avoid centrifugal accumulation. In addition, it works with the chain plate component 12 to move the material at the corner of the arc frame 1 from the side close to the scraper conveyor body 11 to the side close to the transfer machine. Meanwhile, the driven bevel gear 8011 is a one-way bevel gear, ensuring that the material conveying plate 703 only completes its extension and retraction stroke when moving forward, and remains retracted into the housing 702 when returning, so as not to affect the material conveying. S4: After the material conveying is completed, turn off the drive motor 5, check the wear of the transmission components through the protective shell 9, and replace the damaged material feeding plate 703 or turntable body 303.

[0026] The above-described embodiments are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A turntable mechanism for right-angle turns in a scraper conveyor, comprising an arc-shaped frame (1), characterized in that, Also includes: Connecting frame (2), two connecting frames (2) are provided and arranged at both ends of the arc frame (1), and the two connecting frames (2) are respectively used to connect the scraper conveyor and the transfer conveyor; Turntable (3), the turntable (3) is fixed on the side of the arc frame (1) near the center, and is used to reduce the load when the scraper machine is running; An auxiliary transfer mechanism is provided on the side of the arc frame (1) away from the turntable (3) to assist in the transfer of materials piled up at the arc frame (1). Among them, a transmission and transfer component is also provided between the turntable part (3) and the auxiliary transfer mechanism.

2. The turntable mechanism for right-angle turning of a scraper conveyor according to claim 1, characterized in that, Both the arc frame (1) and the connecting frame (2) are configured as double-layer structures, and arc baffles (4) are provided on both sides of the arc frame (1).

3. A turntable mechanism for right-angle turning of a scraper conveyor according to claim 2, characterized in that, The turntable part (3) includes a turntable frame (301) fixed on an arc frame (1), two rotating rods (302) rotatably connected to the turntable frame (301), and a turntable body (303) connected to the rotating rods (302). The arc frame (1) is provided with a movable groove (101) for the turntable body (303) to move. The arc frame (1) is fixed with a baffle plate (102) that moves against the turntable body (303).

4. A turntable mechanism for right-angle turning of a scraper conveyor according to claim 3, characterized in that, A drive motor (5) is fixed on the turntable frame (301). The output shaft of the drive motor (5) is connected to a drive shaft (501). A main bevel gear (502) is provided at the end of the drive shaft (501). Two auxiliary bevel gears (503) that mesh with the main bevel gear (502) are provided on the two rotating rods (302). The two auxiliary bevel gears (503) rotate in opposite directions.

5. A turntable mechanism for right-angle turning of a scraper conveyor according to claim 4, characterized in that, The auxiliary transfer mechanism includes an arc-shaped support plate (6) fixed on the arc-shaped frame (1), a support plate (601) fixed on the arc-shaped support plate (6), a rotating rod (602) rotatably connected to the support plate (601), a first connecting plate (603) fixedly connected to the rotating rod (602), a second connecting plate (604) movably connected to the first connecting plate (603), and a material feeding component (7) rotatably connected to the baffle plate (102).

6. A turntable mechanism for right-angle turning of a scraper conveyor according to claim 5, characterized in that, The material feeding component (7) includes a rotating cylinder (701) rotatably connected to the baffle plate (102), a housing (702) fixedly connected to the rotating cylinder (701), and a material feeding plate (703) slidably connected to the housing (702). An ear plate (8) is fixedly provided at the bottom of the housing (702). A reciprocating screw (801) is rotatably connected to the ear plate (8). A sleeve (802) is threadedly connected to the reciprocating screw (801). The sleeve (802) passes through the housing (702) and is fixedly connected to the material feeding plate (703).

7. A turntable mechanism for right-angle turning of a scraper conveyor according to claim 6, characterized in that, The end of the reciprocating screw (801) is provided with a driven bevel gear (8011), and an arc-shaped toothed ring (605) that meshes with the driven bevel gear (8011) is fixed on the arc-shaped support plate (6), and the driven bevel gear (8011) is configured as a one-way bevel gear with a flywheel structure.

8. A turntable mechanism for right-angle turning of a scraper conveyor according to claim 7, characterized in that, The turntable frame (301) and the support plate (601) are both provided with protective shells (9). A transmission rod (901) is rotatably connected between the two protective shells (9). Both ends of the transmission rod (901) are provided with transmission bevel gears (902). The rotating rod (302) is provided with a first bevel gear (3021) that meshes with one of the transmission bevel gears (902). The rotating rod (602) is provided with a second bevel gear (6021) that meshes with the other transmission bevel gear (902). An auxiliary lever plate (10) is also provided on the rotating rod (602).

9. A scraper conveyor, comprising a turntable mechanism for right-angle turning of the scraper conveyor as described in claim 8, characterized in that, It also includes a scraper conveyor body (11) and a chain plate component (12) that is slidably connected between the scraper conveyor body (11) and the turntable mechanism. The scraper conveyor body (11) is located at the end of the turntable mechanism. The inner sidewalls of the arc frame (1) and the connecting frame (2) are provided with slides (13) that cooperate with the scraper in the chain plate component (12).

10. A method of using the scraper conveyor according to claim 9, characterized in that, Includes the following steps: S1: Connect the two connecting frames (2) of the turntable mechanism to the scraper conveyor body (11) and the transfer machine respectively, to ensure that the scraper of the chain plate (12) matches the slide (13) inside the arc frame (1) and the connecting frame (2); S2: The drive motor (5) drives the drive shaft (501) to rotate, the main bevel gear (502) meshes with the secondary bevel gear (503), causing the two rotating rods (302) to rotate in opposite directions, driving the turntable body (303) to rotate, so that the linear speed of the turntable body (303) is consistent with the speed of the chain plate (12) in the straight section, reducing the frictional resistance when turning; S3: The rotating rod (302) drives the first bevel gear (3021) to mesh with the transmission bevel gear (902) on the transmission rod (901). The rotation of the transmission rod (901) drives the auxiliary lever (10) to move the material at the corner of the arc frame (1) to avoid the material from accumulating at the right angle of the arc frame (1). When the transmission rod (901) rotates, it drives the rotating rod (602) to rotate through the transmission bevel gear (902). The rotating rod (602) pulls the material feeding component (7) to move through the first connecting plate (603) and the second connecting plate (604). The material feeding plate (703) extends and retracts relative to the casing (702) under the action of the reciprocating screw (801), pushing the outer ring material to the inner ring to avoid centrifugal accumulation. In conjunction with the chain plate component (12), it moves the material at the corner of the arc frame (1) from the side close to the scraper conveyor body (11) to the side close to the transfer machine. Meanwhile, the driven bevel gear (8011) is a one-way bevel gear, ensuring that the material feeding plate (703) only completes the extension and retraction stroke when moving forward, and remains retracted into the casing (702) when returning, so as not to affect the material conveying; S4: After the material is conveyed, turn off the drive motor (5), check the wear of the transmission components through the protective shell (9), and replace the damaged material feeding plate (703) or turntable body (303).

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