Arc-shaped turning type raw material conveyor

Abstract

The invention relates to the technical field of material conveying equipment, and discloses an arc-shaped turning type raw material conveyor which comprises linear conveying boxes, a first conveying belt is installed in the linear conveying boxes, an arc-shaped turning conveying box is installed at the joint of the two linear conveying boxes, and a second conveying belt is installed in the arc-shaped turning conveying box. A support is installed on the inner side of the first conveying belt, a lead screw is installed in the support, a transverse plate is installed outside the lead screw in a threaded mode, and the lower end of the transverse plate is movably connected with two sets of anti-blocking scraping plates in a sleeved mode. According to the arc-shaped turning type raw material conveyor, the mounting plate is mounted in the arc-shaped turning conveying box, meanwhile, the springs are assembled into a whole, and meanwhile, the springs are mounted at the rear end of the wear-resistant layer, that is, when the second conveying belt drives products to be conveyed to generate centrifugation and slide towards the outer side, the products make contact with the wear-resistant layer, and the springs can reduce impact force; and the wear-resistant layer is made of a wear-resistant ceramic layer, so that the hardness is increased, and the wear of the bent plate is reduced.

Description

Technical Field

[0001] This invention relates to the field of material conveying equipment technology, specifically an arc-shaped turning raw material conveyor. Background Technology

[0002] In industrial production, raw material transportation is a crucial link in the production process, especially for granular materials such as sand, gravel, and ore. Traditional conveying equipment typically uses belt conveyors or chain conveyors, which perform well for straight-line transport but are prone to material accumulation or equipment wear at bends. With the expansion of production scale and the increase in automation, higher demands are placed on the stability and durability of conveying equipment.

[0003] In recent years, although some improved conveying equipment has emerged, there are still shortcomings in the design of turning points, resulting in reduced material conveying efficiency and increased equipment maintenance costs.

[0004] Existing technological solutions: Currently, common methods for solving the turning problem of conveyors include the following: Right-angle turn design: The conveyor adopts a right-angle design at the turn, and the material flow direction is forcibly changed by baffles or guiding devices. The advantage of this design is its simple structure, but the disadvantage is that material tends to accumulate at the turn, leading to a decrease in conveying efficiency; Segmented turn design: The turn is divided into multiple small segments, each with a small turning radius. This design can reduce material accumulation, but increases the complexity of the equipment and manufacturing costs; Roller turn design: Multiple rollers are set at the turn, and the rotation of the rollers drives the material to turn. The advantage of this design is smooth material flow, but the disadvantage is that the rollers are prone to wear and the maintenance cost is high. The shortcomings of existing technologies: Right-angle turn design easily leads to material accumulation, affecting conveying efficiency; segmented turn design increases the complexity and cost of the equipment; roller turn design, although smooth material flow, has rollers that are prone to wear and high maintenance costs. Therefore, we propose an arc-shaped turning raw material conveyor. Summary of the Invention

[0005] To address the shortcomings of existing raw material conveyors, this invention provides an arc-shaped turning raw material conveyor. The arc-shaped conveyor box prevents material accumulation at corners. Simultaneously, a wear-resistant layer is installed on the inner side of the arc-shaped turning conveyor box. During product conveying, the product contacts the wear-resistant layer, reducing wear. Furthermore, the buffering force reduces impact damage to the inner wall of the arc-shaped turning conveyor box, thus extending its service life and solving the problems mentioned in the background art.

[0006] This invention provides the following technical solution: an arc-shaped turning raw material conveyor, comprising a linear conveyor box, a first conveyor belt installed inside the linear conveyor box, an arc-shaped turning conveyor box installed at the connection of two sets of linear conveyor boxes, a second conveyor belt installed inside the arc-shaped turning conveyor box, a bracket installed on the inner side of the first conveyor belt, a lead screw installed inside the bracket, a horizontal plate installed on the external thread of the lead screw, two sets of anti-blocking scrapers movably sleeved at the lower end of the horizontal plate, a flow guiding device installed on the upper external side of the linear conveyor box, an installation plate movably sleeved at equal intervals on the inner side of the arc-shaped turning conveyor box, a movable column movably sleeved inside the installation plate, a third installation sleeve fixedly connected to the front end of the movable column, and a wear-resistant layer movably sleeved inside the third installation sleeve.

[0007] Preferably, the flow guiding device includes a second mounting sleeve, which is sleeved on the outside of the linear conveyor box. A second bolt is installed on the internal thread of the side of the second mounting sleeve. A connecting plate is fixedly connected to the upper end of the second mounting sleeve. A flow guiding plate is movably sleeved inside the second mounting sleeve. An inclined plate is fixedly connected to the top of the flow guiding plate. A telescopic rod is installed between the connecting plate and the inclined plate.

[0008] Preferably, the guide plate is fitted and installed on the upper end of the first conveyor belt, and the guide plate faces the arc-shaped turning conveyor box.

[0009] Preferably, the lower end of the linear conveyor box is fixedly connected to a first mounting sleeve, and the lower part of the arc-shaped turning conveyor box is fixedly connected to a limit buckle. A first bolt is installed on the internal thread of one side of the limit buckle, and the limit buckle is movably sleeved inside the first mounting sleeve.

[0010] Preferably, the cross plate extends to the middle of the second conveyor belt, and a scraper is installed on the outside of the linear conveyor box, with the anti-clogging scraper fitted to the upper end of the second conveyor belt.

[0011] Preferably, the ends of the two sets of anti-blocking scrapers are respectively fixedly connected with a first gear and a second gear, and a gear set is installed at the upper end of the horizontal plate. The gear set includes two sets of gears. A rack chain is sleeved on the outside of one set of gears and the second gear inside the gear set. The other gear inside the rack chain meshes with the first gear.

[0012] Preferably, the mounting plate is sleeved inside the arc-shaped turning conveyor box, and a spring is sleeved on the outside of the movable column, with the spring installed between the mounting plate and the third mounting sleeve.

[0013] Preferably, protective sleeves are fixedly connected to both ends of the inner side of the arc-shaped turning conveyor box, the inner side of the wear-resistant layer is arc-shaped, and the protective sleeves are fitted onto the inner sides of the wear-resistant layers installed on both sides.

[0014] Preferably, the wear-resistant layer is made of wear-resistant ceramic, which can be replaced by a high-manganese steel liner, and the inner side of the wear-resistant layer is arc-shaped.

[0015] Preferably, the third mounting sleeve has a groove inside, and a slider is installed in the middle of the rear end of the wear-resistant layer, wherein the slider installed in the middle of the rear end of the wear-resistant layer is movably sleeved inside the groove inside the third mounting sleeve.

[0016] Compared with existing arc-shaped turning raw material conveyors, the present invention has the following advantages: 1. This arc-shaped turning raw material conveyor is installed inside the arc-shaped turning conveyor box via an mounting plate. At the same time, the springs are assembled into a whole, and a spring is installed at the rear end of the wear-resistant layer. That is, when the second conveyor belt drives the product to slide outward due to centrifugal force, the product comes into contact with the wear-resistant layer. The spring can reduce the impact force, and the wear-resistant layer is made of wear-resistant ceramic layer, which increases hardness and thus reduces the wear of the bending plate.

[0017] 2. This arc-shaped turning raw material conveyor consists of two sets of straight conveyor boxes installed vertically. An arc-shaped turning conveyor box is installed inside the two sets of straight conveyor boxes, and the external design of the arc-shaped turning conveyor box is arc-shaped. This prevents products from accumulating in right-angle areas during product conveying. At the same time, the centrifugal force generated by the products is greatest in the middle of the arc-shaped turning conveyor box, causing the products to accumulate in the middle of the arc-shaped turning conveyor box. When conveying small particulate materials such as mud and sand, the horizontal plate is controlled to move downwards, and the anti-blocking scraper moves to the front and rear ends of the middle of the second conveyor belt. The anti-blocking scraper is controlled to rotate and scrape off the products accumulated in the center of the second conveyor belt, reducing the phenomenon of product accumulation.

[0018] 3. The arc-shaped turning raw material conveyor has a second mounting sleeve installed on the upper part of the linear conveyor box. The second mounting sleeve is quick and easy to install. At the same time, the telescopic rod is activated, which pushes the inclined plate to move inward. That is, the angle of the guide plate at the upper end of the first conveyor belt can be adjusted. By changing the accumulation of the guide plate, the convenience of guiding the direction of the product during the conveying process is improved. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the main structure of the present invention; Figure 2 This is a top view of the main structure of the present invention; Figure 3 This invention lacks a schematic diagram of the anti-clogging scraper structure; Figure 4 This is an enlarged structural schematic diagram of the flow guiding device of the present invention; Figure 5 This is a schematic diagram of the wear-resistant layer structure of the present invention; Figure 6 For the present invention Figure 3 Enlarged structural diagram at point A in the middle.

[0020] In the diagram: 1. Linear conveyor box; 2. First conveyor belt; 3. Arc-shaped turning conveyor box; 4. Second conveyor belt; 5. First mounting sleeve; 6. Limit buckle; 7. First bolt; 8. Lead screw; 9. Horizontal plate; 10. Anti-blocking scraper; 11. First gear; 12. Second gear; 13. Gear set; 14. Rack chain; 15. Flow guide device; 151. Second mounting sleeve; 152. Second bolt; 153. Connecting plate; 154. Flow guide plate; 155. Inclined plate; 156. Telescopic rod; 16. Protective sleeve; 17. Mounting plate; 18. Movable column; 19. Third mounting sleeve; 20. Wear-resistant layer; 21. Spring. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 An arc-shaped turning raw material conveyor includes a linear conveyor box 1, inside which a first conveyor belt 2 is installed, driving the product in a straight line. An arc-shaped turning conveyor box 3 is installed at the connection between two linear conveyor boxes 1, inside which a second conveyor belt 4 is installed, driving the product in an arc-shaped trajectory for dispersion. A bracket is installed on the inner side of the first conveyor belt 2, and a lead screw 8 is installed inside the bracket. A cross plate 9 is threaded onto the outer side of the lead screw 8. The lead screw 8 can be rotated, and the height of the cross plate 9 can be adjusted. Two sets of anti-blocking scrapers 10 are movably sleeved at the lower end of the cross plate 9. When the anti-blocking scrapers 10 rotate, they drive the product... Pushing the product towards the middle of the second conveyor belt 4 prevents the centrifugal force from being at its maximum when the product is conveyed to the middle of the second conveyor belt 4, which would cause the mud and sand to accumulate. A flow guide device 15 is installed on the upper external part of the straight conveyor box 1. An installation plate 17 is movably and equally spaced on the inner side of the arc-shaped turning conveyor box 3. The installation plate 17 is inserted into the interior of the arc-shaped turning conveyor box 3 to improve the convenience of installation and disassembly of the installation plate 17. A movable column 18 is movably sleeved inside the installation plate 17. A third installation sleeve 19 is fixedly connected to the front end of the movable column 18. A wear-resistant layer 20 is movably sleeved inside the third installation sleeve 19. The wear-resistant layer 20 contacts the centrifuged product to reduce the overall wear of the arc-shaped turning conveyor box 3.

[0023] Please see Figure 4 The flow guiding device 15 includes a second mounting sleeve 151, which is sleeved on the outside of the linear conveyor box 1. A second bolt 152 is installed on the internal thread of the side of the second mounting sleeve 151. A connecting plate 153 is fixedly connected to the upper end of the second mounting sleeve 151. A flow guiding plate 154 is movably sleeved inside the second mounting sleeve 151. An inclined plate 155 is fixedly connected to the top of the flow guiding plate 154. A telescopic rod 156 is installed between the connecting plate 153 and the inclined plate 155. When the linear conveyor box 1 and the arc-shaped turning conveyor box 3 carry the sediment during the conveying process, the sediment flow occurs... The diffusion of sediment causes it to flow to the corners. To address this, a second mounting sleeve 151 is installed on the outside of the linear conveyor box 1. The position of the second bolt 152 is adjusted, and the second bolt 152 is rotated to improve the stability of the equipment during installation. At the same time, the guide plate 154 is installed on the upper part of the first conveyor belt 2. The telescopic rod 156 is activated, and the length of the telescopic rod 156 is adjusted to adjust the angle of the guide plate 154, thereby facilitating the installation of the guide plate 154 structure. Furthermore, the direction and angle of the flow can be adjusted according to different products to ensure that the equipment can be used for conveying different materials.

[0024] Please see Figure 4 The guide plate 154 is fitted and installed on the upper end of the first conveyor belt 2, with the guide plate 154 facing the arc-shaped turning conveyor box 3. By installing the guide plate 154 on the upper part of the first conveyor belt 2 and facing the arc-shaped turning conveyor box 3, the guide plate 154 adjusts the product conveying position during product conveying, ensuring that the product is concentrated in the middle of the upper end of the first conveyor belt 2 and the second conveyor belt 4 for conveying, and avoiding the accumulation of products on the outer wall of the arc-shaped turning conveyor box 3.

[0025] Please see Figure 2 The lower end of the linear conveyor box 1 is fixedly connected to a first mounting sleeve 5, and the lower part of the arc-shaped turning conveyor box 3 is fixedly connected to a limit buckle 6. A first bolt 7 is installed on the internal thread of one side of the limit buckle 6. The limit buckle 6 is movably sleeved inside the first mounting sleeve 5. During the assembly of the linear conveyor box 1 and the arc-shaped turning conveyor box 3, the linear conveyor box 1 is controlled to move to one end of the arc-shaped turning conveyor box 3, and the limit buckle 6 installed on the inner side of the arc-shaped turning conveyor box 3 is sleeved inside the first mounting sleeve 5. The mutual sleeved connection between the first mounting sleeve 5 and the limit buckle 6 improves the stability of the assembly of the linear conveyor box 1 and the arc-shaped turning conveyor box 3. At the same time, the first bolt 7 is installed inside the limit buckle 6 to further improve the stability of the equipment during assembly and positioning.

[0026] Please see Figure 1The horizontal plate 9 extends to the middle of the second conveyor belt 4. A scraper is installed on the outside of the linear conveyor box 1. The anti-blocking scraper 10 is fitted to the upper end of the second conveyor belt 4. The height of the horizontal plate 9 is adjusted by rotating the screw 8. When conveying mud and sand, because the mud and sand particles are small, and after the mud and sand are conveyed to the middle of the arc-shaped turning conveyor box 3 along with the second conveyor belt 4, mud and sand are prone to accumulate on the inner and outer walls, causing mud and sand blockage. Therefore, rotating the screw 8 drives the height of the horizontal plate 9 to be adjusted, controlling the anti-blocking scraper 10 to move to the upper end of the second conveyor belt 4. At the same time, when the anti-blocking scraper 10 rotates, it drives the mud and sand adhering to the inner wall of the arc-shaped turning conveyor box 3 to one side to provide power, avoiding the accumulation of mud and sand in the middle of the arc-shaped turning conveyor box 3, thereby avoiding mud and sand blockage and causing wear on the conveying device.

[0027] Please see Figure 1 The ends of the two sets of anti-blocking scrapers 10 are respectively fixedly connected to a first gear 11 and a second gear 12. A gear set 13 is installed on the upper end of the horizontal plate 9. The gear set 13 contains two sets of gears. A rack chain 14 is sleeved on the outside of one set of gears and the second gear 12 inside the gear set 13. The other gear inside the rack chain 14 meshes with the first gear 11. The gear set 13 is installed on the upper end of the horizontal plate 9. The motor controls the second gear 12 to rotate. With the assistance of the rack chain 14, the gear set 13 is driven to rotate synchronously. At the same time, the gear set 13 meshes with the first gear 11. That is, the first gear 11 and the second gear 12 rotate synchronously in opposite directions. This achieves the same rotation speed for the two sets of anti-blocking scrapers 10 and ensures the stability of the material conveying process during the rotation of the anti-blocking scrapers 10.

[0028] Please see Figure 5 and Figure 6 The mounting plate 17 is fitted inside the arc-shaped turning conveyor box 3. A spring 21 is fitted outside the movable column 18. The spring 21 is installed between the mounting plate 17 and the third mounting sleeve 19. The mounting plate 17 is fitted inside the arc-shaped turning conveyor box 3, which improves the convenience of installation and removal of the mounting plate 17. At the same time, the spring 21 is installed between the mounting plate 17 and the third mounting sleeve 19, which provides elastic buffering force to the third mounting sleeve 19. When the second conveyor belt 4 drives the product to be conveyed, the second conveyor belt 4 generates centrifugal force. The centrifuged product comes into contact with the inner wall of the wear-resistant layer 20. At the same time, the wear-resistant layer 20 is buffered after being subjected to pressure, reducing the impact force from damaging the structure of the wear-resistant layer 20, thereby improving the efficiency of the equipment.

[0029] Please see Figure 6The inner ends of the arc-shaped turning conveyor box 3 are fixedly connected with protective sleeves 16. The inner side of the wear-resistant layer 20 is arc-shaped. The protective sleeves 16 are fitted onto the inner sides of the wear-resistant layer 20 installed on both sides. The protective sleeves 16 are installed on the inner side of the arc-shaped turning conveyor box 3, and the wear-resistant layer 20 and the protective sleeves 16 are installed in a matching manner. That is, after the material flows to the inner side of the wear-resistant layer 20, it is prevented from slipping between the wear-resistant layer 20 and the arc-shaped turning conveyor box 3.

[0030] Please see Figure 1 The wear-resistant layer 20 is made of wear-resistant ceramic, which can be replaced with a high-manganese steel liner. The inner side of the wear-resistant layer 20 is arc-shaped. The wear-resistant ceramic material of the wear-resistant layer 20 increases hardness, thereby reducing the wear of the bending plate. At the same time, depending on the material being conveyed, the wear-resistant layer 20 can be replaced with a high-manganese steel liner, which is suitable for higher wear processes.

[0031] Please see Figure 5 The third mounting sleeve 19 has a groove inside, and a slider is installed in the middle of the rear end of the wear-resistant layer 20. The slider installed in the middle of the rear end of the wear-resistant layer 20 is movably sleeved inside the groove inside the third mounting sleeve 19. The wear-resistant layer 20 is movably sleeved inside the third mounting sleeve 19 by the slider. Under normal conditions, the wear-resistant layer 20 is made of wear-resistant ceramic layer. When the wear-resistant ceramic layer is replaced with a high manganese steel liner for different products, the wear-resistant layer 20 can be directly removed from the inside of the third mounting sleeve 19, which improves the flexibility and convenience of installing and removing the wear-resistant layer 20 inside the third mounting sleeve 19.

[0032] Working principle: During use, an installation plate 17 is installed inside the arc-shaped turning conveyor box 3, and multiple sets of wear-resistant layers 20 form an arc-shaped surface on the inner side of the arc-shaped turning conveyor box 3. At the same time, straight conveyor boxes 1 are installed on both sides of the arc-shaped turning conveyor box 3. One set of straight conveyor boxes 1 drives the raw material to the upper part of the arc-shaped turning conveyor box 3, and then turns through the arc-shaped turning conveyor box 3 to the upper part of another set of straight conveyor boxes 1. Depending on the product, a flow guiding device 15 is installed on the upper part of the straight conveyor box 1. The telescopic rod 156 is activated to adjust the angle of the flow guiding plate 154. That is, the flow guiding plate 154 is set at the upper end of the first conveyor belt 2 to limit the movement trajectory of the product and prevent the product from directly sticking to the inner wall of the arc-shaped turning conveyor box 3 under the action of centrifugal force after being conveyed to the upper part of the second conveyor belt 4. The high plasticity of sediment causes it to easily slide onto the inner wall of the curved conveyor box 3 under centrifugal force during transport by the second conveyor belt 4. Therefore, a guide device 15 is installed on the upper part of the straight conveyor box 1. The guide device 15 concentrates the sediment in the middle of the first conveyor belt 2, while the first conveyor belt 2 transports the sediment to the upper part of the second conveyor belt 4. Under the action of centrifugal force, the sediment slides onto the inner wall of the curved conveyor box 3, and comes into contact with the wear-resistant layer 20. The wear-resistant layer 20 can be replaced during use. The wear-resistant layer 20 is made of wear-resistant ceramic material, which increases hardness and reduces wear on the bending plate. At the same time, after the mud and sand impact the wear-resistant layer 20, they rebound under the buffering effect of the spring 21, avoiding damage to the wear-resistant layer 20 from the impact force. Meanwhile, a horizontal plate 9 is installed on the upper part of the arc-shaped turning conveyor box 3, and a rotating screw 8 is used to adjust the height of the horizontal plate 9. The second gear 12 is activated, and under the transmission action of the gear set 13 and the rack and pinion chain 14, the anti-blocking scraper 10 is driven to rotate. The anti-blocking scraper 10 effectively controls the mud and sand to be pushed inward for processing, reducing the accumulation of mud and sand.

[0033] For finished product conveying, after the first conveyor belt 2 carries the product to the upper part of the second conveyor belt 4, the anti-blocking scraper 10 is controlled to move upward and stop contacting the finished product. At the same time, the second conveyor belt 4 generates centrifugal force when rotating, causing the product to directly contact the wear-resistant layer 20. Under the buffering effect of the spring 21, the wear-resistant layer 20 reduces the impact force and improves the service life of the wear-resistant layer 20. In addition, the wear-resistant layer 20 is replaced with a high manganese steel liner, which is suitable for higher wear conditions.

[0034] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A curved turning raw material conveyor, comprising a straight conveying box (1), a first conveying belt (2) is installed in the inside of the straight conveying box (1), an arc turning conveying box (3) is installed at the connection of two groups of straight conveying boxes (1), a second conveying belt (4) is installed in the inside of the arc turning conveying box (3), characterized in that: The inner side of the first conveying belt (2) is provided with a support, the inside of the support is provided with a lead screw (8), the outside of the lead screw (8) is provided with a horizontal plate (9), the lower end of the horizontal plate (9) is movably sleeved with two groups of anti-blocking scrapers (10), the outside of the upper end of the straight conveying box (1) is provided with a flow guide device (15), the inner side of the arc-shaped turning conveying box (3) is movably and equidistantly sleeved with a mounting plate (17), the inside of the mounting plate (17) is movably sleeved with a movable column (18), the front end of the movable column (18) is fixedly connected with a third mounting sleeve (19), and the inside of the third mounting sleeve (19) is movably sleeved with a wear-resistant layer (20).

2. A curved transfer conveyor as claimed in claim 1, wherein: The flow guide device (15) comprises a second mounting sleeve (151), the second mounting sleeve (151) is sleeved on the outside of the straight conveying box (1), the inside of the side of the second mounting sleeve (151) is provided with a second bolt (152) in a threaded manner, the upper end of the second mounting sleeve (151) is fixedly connected with a connecting plate (153), the inside of the second mounting sleeve (151) is movably sleeved with a flow guide plate (154), the top end of the flow guide plate (154) is fixedly connected with an inclined plate (155), and the connecting plate (153) and the inclined plate (155) are provided with an expansion rod (156).

3. A curved flight feed conveyor as claimed in claim 2, wherein: The flow guide plate (154) is attached to the upper end of the first conveying belt (2), and the flow guide plate (154) faces the arc-shaped turning conveying box (3).

4. A curved flight feed conveyor as claimed in claim 1 wherein: The lower end of the straight conveying box (1) is fixedly connected with a first mounting sleeve (5), the lower part of the arc-shaped turning conveying box (3) is fixedly connected with a limiting buckle (6), the inside of one side of the limiting buckle (6) is provided with a first bolt (7) in a threaded manner, and the limiting buckle (6) is movably sleeved in the inside of the first mounting sleeve (5).

5. A curved flight feed conveyor as claimed in claim 1 wherein: The horizontal plate (9) extends to the middle part of the second conveying belt (4), the outside of the straight conveying box (1) is provided with a scraper, and the anti-blocking scraper (10) is attached to the upper end of the second conveying belt (4).

6. A curved flight feed conveyor as claimed in claim 1 wherein: The ends of the two groups of anti-blocking scrapers (10) are fixedly connected with a first gear (11) and a second gear (12) respectively, the upper end of the horizontal plate (9) is provided with a gear set (13), the gear set (13) comprises two groups of gears, the outside of one group of gears in the inside of the gear set (13) and the second gear (12) is sleeved with a rack chain (14), and the other side gear in the inside of the rack chain (14) and the first gear (11) are in meshing relationship.

7. A curved flight feed conveyor as claimed in claim 1 wherein: The mounting plate (17) is sleeved in the inside of the arc-shaped turning conveying box (3), the outside of the movable column (18) is sleeved with a spring (21), and the spring (21) is installed between the mounting plate (17) and the third mounting sleeve (19).

8. A curved flight feed conveyor as claimed in claim 1 wherein: The inside of the arc-shaped turning conveying box (3) is fixedly connected with a protective sleeve (16) at both ends, the inside of the wear-resistant layer (20) is arc-shaped, and the protective sleeve (16) is sleeved on the inside of the wear-resistant layer (20) installed on both sides.

9. A curved flight feed conveyor as claimed in claim 1 wherein: The material of the wear-resistant layer (20) is a wear-resistant ceramic layer, the wear-resistant ceramic layer can be replaced with a high manganese steel lining plate, and the inside of the wear-resistant layer (20) is arc-shaped.

10. A curved flight feed conveyor as claimed in claim 1 wherein: The third mounting sleeve (19) is internally provided with a sliding groove, and a sliding block is mounted at the middle of the rear end of the wear-resistant layer (20), wherein the sliding block is movably sleeved in the sliding groove.

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