A sector-shaped stock bin feeding system and a feeding method

Abstract

This invention relates to the field of construction material silos, and in particular to a fan-shaped silo loading system and method. This invention provides a fan-shaped silo loading system and method that overcomes the problems of high cost, low site utilization, and low safety associated with traditional silos requiring a manually operated forklift. The system achieves material transport and loading through the forward and reverse traction of the towing bucket, and, in conjunction with the track, enables loading from multiple angles, improving the site utilization efficiency of the silo. Furthermore, it eliminates the need for human and vehicle operation, thus enhancing safety. The system mainly includes a silo with a fan-shaped area for storing materials, a loading port at the center of the fan-shaped area; a track positioned above the silo and distributed along the outer arc of the fan-shaped area; a traveling vehicle mounted on the track for relative movement; a towing bucket with a built-in filling chamber, a feed inlet at its front end, and an opening and closing device at its rear end; and a traction system positioned above the loading inlet.

Description

Technical Field

[0001] This invention relates to the field of building material silos, and in particular to a fan-shaped silo feeding system and feeding method. Background Technology

[0002] A batching plant is mainly used in concrete construction projects, primarily for mixing and blending concrete. It mainly comprises an aggregate supply system, a mixing system, and a powder supply system. The aggregate supply system mainly includes silos, aggregate hoppers, weighing hoppers, flat belt conveyors, and inclined belt conveyors. The main working process involves storing various aggregate materials in the silos, conveying the materials from the silos to the aggregate hoppers, and then using the weighing hoppers to remove a measured amount of material, which is then conveyed by the conveyors to the mixing system to be mixed with the powder materials.

[0003] The existing silos store different types of sand, gravel, and other aggregates, separated by partitions. When specific materials need to be retrieved, workers must use forklifts to shovel them to the aggregate hopper. However, this system has the following drawbacks: 1. It requires dedicated operators, resulting in extremely high labor and diesel fuel costs for the forklifts; 2. It necessitates reserving wide passageways for the forklifts, leading to very low site utilization; 3. It is highly prone to mixing or misplacing aggregates of different specifications, potentially causing concrete quality accidents; 4. The cross-operation of personnel and vehicles within the silos poses a very high safety risk. Another proposed solution involves above-ground and underground components. Above ground, belt conveyors deliver raw materials to each silo, while underground, funnel-type metering hoppers and belt conveyors are used for batching before entering the mixing plant. This solution is costly and requires modification of the existing batching system. Summary of the Invention

[0004] This invention provides a fan-shaped hopper loading system and method, which overcomes the problems of high cost, low site utilization and low safety caused by the need for a dedicated person to drive a loader in traditional hoppers. The system can realize the transportation and loading of materials by the forward and reverse traction of the towing bucket, and can realize multi-angle loading with the track, thereby improving the site utilization efficiency of the hopper and eliminating the need for personnel and vehicle operation, thus improving safety.

[0005] This invention is achieved through the following technical solution: A fan-shaped hopper feeding system includes, The silo has a fan-shaped area for storing materials, and a feeding port is located at the center of the fan-shaped area; The track is positioned above the hopper and distributed along the outer arc of the fan-shaped area; A traveling vehicle, which is mounted on the track and can move relative to it; The towing bucket has a built-in filling chamber, a feed inlet at the front end, and an opening and closing device at the rear end. The traction system is located above the loading port and includes a traction device, a forward traction rope, and a reverse traction rope. One end of the forward traction rope is connected to the traction device and the other end is connected to the front end of the towing bucket. One end of the reverse traction rope is connected to the traction device and the other end passes through the traveling vehicle and is connected to the opening and closing device of the towing bucket.

[0006] Furthermore, the sector-shaped area is divided into multiple sector-shaped unit areas by multiple partition walls.

[0007] Furthermore, the traction device includes a support plate, a rotating frame, a first traction motor, and a second traction motor. The upper and lower ends of the rotating frame are rotatably connected to the support plate, and the first traction motor and the second traction motor are fixedly connected to the rotating frame. The output shafts of the first traction motor and the second traction motor are each equipped with a traction drum, and the forward traction rope and the reverse traction rope are respectively wound around the traction drums of the first traction motor and the second traction motor.

[0008] Furthermore, the bottom of the traveling vehicle is equipped with a rope pulley, and the reverse traction rope passes around the rope pulley and is connected to the opening and closing device of the towing bucket.

[0009] Furthermore, both the inner and outer arc surfaces of the track are provided with guide grooves; The traveling vehicle includes a left side plate, a right side plate, and a traveling motor. The bottoms of the left side plate and the right side plate are connected as one unit by a connecting rod. At least one driven roller is rotatably connected to the inner side of the left side plate, and an active roller is rotatably connected to the inner side of the right side plate. The traveling motor is mounted on the outer side of the right side plate, and the output shaft of the traveling motor drives the active roller to rotate. The driving roller and the driven roller are respectively assembled in the guide grooves on the inner and outer sides of the track.

[0010] Furthermore, the traction end of the forward traction rope is divided into two strands and connected to the left and right sides of the feed inlet of the tractor bucket, respectively. The rear end of the towing bucket is an arc-shaped sidewall, and the lower part of the arc-shaped sidewall is provided with a discharge port. The opening and closing device includes a rotating shaft, an arc-shaped plate and two rotating arms. The two ends of the rotating shaft are respectively rotatably connected to the left and right sidewalls of the towing bucket. The arc-shaped plate is assembled on the inner side of the arc-shaped sidewall. The left and right sides of the arc-shaped plate are respectively fixedly connected to the rotating shaft. The two rotating arms are located on the left and right sides of the towing bucket and are respectively connected to the left and right ends of the rotating shaft. The traction end of the reverse traction rope is divided into two strands and connected to the ends of the two rotating arms respectively. When the reverse traction rope is pulled backward, the arc plate rotates to open the discharge port.

[0011] Furthermore, the silo includes a bottom plate and a surrounding plate set on the bottom plate. The partition wall is vertically fixed on the bottom plate and divides the fan-shaped area into multiple fan-shaped unit areas. The top edge of the partition wall slopes downward in a direction away from the center.

[0012] Furthermore, each sector-shaped unit area has a feeding port at its center, and a hopper is located below the feeding port.

[0013] Furthermore, the number of the sector-shaped unit areas is 4-6.

[0014] A method for feeding materials into a sector-shaped silo, wherein the above-mentioned sector-shaped silo feeding system is used for feeding materials, and materials are piled up in each sector-shaped unit area to form a material area; It includes the following steps: S10. When it is necessary to select materials in a specific sector unit area, control the traveling vehicle and the towing bucket to travel together along the track until they are in the sector unit area and then stop. S20. The traction device controls the forward traction rope to pull the bucket towards the feed inlet, while simultaneously controlling the reverse traction rope to follow the bucket's movement. S30. When the towing bucket passes through the material area, the material enters the filling chamber from the feed port of the towing bucket. S40. When the towing bucket is dragged to the feeding port, the traction device controls the reverse traction rope to pull the opening and closing device to open the rear end of the towing bucket, and the material in the towing bucket falls into the feeding port from the rear end. S50: The traction device controls the reverse traction rope to pull the tow bucket in the opposite direction, while simultaneously controlling the forward traction rope to follow the tow bucket until the tow bucket moves under the traveling vehicle and stops. S60. Repeat steps S10-S50 to achieve material feeding in specific sector-shaped unit areas.

[0015] The beneficial effects achieved by this invention compared with the prior art are as follows: 1. The sector-shaped hopper feeding system of the present invention includes a traction system, a traction bucket, a track, and a traveling vehicle. The forward and reverse traction of the tow bucket enables the transportation and loading of materials. Combined with the track, it enables loading from multiple angles, greatly improving the site utilization efficiency of the silo. Moreover, it eliminates the need for personnel and vehicle operations, thus enhancing safety. The fan-shaped hopper feeding method described in this invention replaces the traditional method of feeding materials by man-driven loader, which not only improves feeding efficiency, but also increases site utilization, ensures operational safety, and reduces concrete quality problems such as mixing and misplacing materials that are prone to occur when feeding materials manually, thereby reducing production costs. 2. The fan-shaped area is divided into multiple fan-shaped unit areas by multiple partition walls. Each fan-shaped unit area can store one type of aggregate, which avoids mixing of materials in the silo, ensures the utilization rate of the silo space, and facilitates the loading of materials by the towing bucket. 3. The traction device includes a support plate, a rotating frame, a first traction motor and a second traction motor. The traction direction of the forward traction rope and the reverse traction rope is controlled by the forward and reverse rotation of the first traction motor and the second traction motor, so as to realize the motion control of the towed bucket. The structure is simple. 4. The rear end of the towing bucket is equipped with an opening and closing device. The traction end of the reverse traction rope is divided into two strands and connected to the ends of the two rotating arms respectively. With this design, when the towing bucket runs to the loading port position, the discharge port is opened by pulling the reverse traction rope backward to achieve smooth unloading. 5. Each sector unit area is equipped with a feeding port at its center, and a hopper is located below the feeding port. The hopper facilitates the transportation of materials to the aggregate supply system and into the mixing system. 6. This system does not require modification of existing mixing equipment and is suitable for use in frequently moving temporary construction sites such as large-scale highway projects. It requires minimal investment, yields quick results, is suitable for automated operation, and ensures environmental protection. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of the fan-shaped hopper feeding system described in Embodiment 1. Figure 2 This is a front view of the sector-shaped hopper feeding system described in Embodiment 1. Figure 3 This is a top view of the sector-shaped hopper feeding system described in Embodiment 1. Figure 4 This is a schematic diagram showing the cooperation between the towing bucket, traction decoration, and track described in Embodiment 1. Figure 5 This is a schematic diagram of the traction device described in Embodiment 1. Figure 6 This is a three-dimensional schematic diagram of the vehicle described in Embodiment 1. Figure 7 This is the front view of the towing bucket described in Embodiment 1; Figure 8 This is a three-dimensional schematic diagram of the towing bucket described in Embodiment 1; Figure 9 This is a three-dimensional schematic diagram of the track described in Embodiment 1; Figure 10 This is a schematic diagram of the feeding port and slide bar as described in Embodiment 2; Figure 11 This is a schematic diagram of the working of the towing bucket described in Embodiment 2; In the diagram: 1. Hopper, 11. Feed inlet, 12. Partition wall, 13. Base plate, 14. Enclosure, 15. Slide bar, 16. Ramp, 2. Track, 21. Guide groove, 3. Traveling vehicle, 31. Rope wheel, 32. Left side plate, 33. Right side plate, 34. Traveling motor, 35. Driving roller, 36. Driven roller, 4. Traction bucket, 41. Feed inlet, 42. Arc-shaped side wall, 43. Discharge outlet, 5. Opening and closing device, 51. Rotating shaft, 52. Arc-shaped plate, 53. Rotating arm, 6. Traction device, 61. Support plate, 62. Rotating frame, 63. First traction motor, 64. Second traction motor, 7. Forward traction rope, 8. Reverse traction rope, 9. Hopper. Detailed Implementation

[0017] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0018] In the description of the invention, it should be understood that the terms "front", "rear", "up", "down", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the invention and 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 limiting the invention.

[0019] Example 1 To address the problems of high cost, low site utilization, and low safety associated with traditional hopper systems that require a dedicated operator to drive a forklift, this embodiment discloses a fan-shaped hopper loading system, such as... Figure 1-3 As shown, the main components include a hopper 1, a track 2, a traveling vehicle 3, a tractor 4, and a traction system. The tractor 4 can transport and load materials by pulling them in both directions. The track can be used to load materials from multiple angles, improving the space utilization efficiency of the hopper. It also eliminates the need for personnel and vehicle operations, thus improving safety.

[0020] The silo 1 is a storage area for various materials such as sand and gravel aggregates. The silo 1 includes a base plate 13, surrounding panels 14, and partition walls 12. The surrounding panels 14 are bolted to the surface of the base plate 12, forming a general storage area. Within the silo 1, a fan-shaped area is selected for material storage. In this embodiment, three partition walls 12 are vertically fixed to the base plate 13, dividing the fan-shaped area into four fan-shaped unit areas. These four unit areas can store four different materials. The top edge of each partition wall 12 slopes downwards away from the center. The fan-shaped unit area between two partition walls 12 is a material storage area. Sand and gravel aggregates are placed in the center of this area, ensuring that the material does not exceed the height of the partition wall 12 to prevent mixing. A feed inlet 11 is located at the center of each fan-shaped unit area, and a hopper 9 is installed below the feed inlet 11. All the hoppers are arranged in a straight line, and all the hoppers have discharge ports at the bottom. All the hoppers are connected to the same conveying device through the discharge ports. The end of the conveying device is connected to the aggregate hopper of the aggregate supply system. The conveying device can be a conventional screw conveyor, because the aggregate hopper and other equipment of the aggregate supply system are conventional and will not be described in detail here.

[0021] like Figure 4-6 As shown in Figure 9, the track 2 is suspended from the top of the silo 1 by a bracket, thus fixing the track 2 above the silo 1. In this embodiment, the track 2 is a 180° arc structure, with the track 2 distributed along the outer arc of the entire fan-shaped area. Guide grooves 21 are machined on both the inner and outer arc surfaces of the track 2, and the cross-section of the track 2 is "I" shaped. The track 2 is designed to facilitate the assembly of the traveling vehicle 3 on the track 2 and its relative movement. The traveling vehicle 3 includes a left side plate 32, a right side plate 33, and a traveling motor 34. The left side plate 32 and the right side plate 33 are both made of steel plates and are symmetrically distributed. The bottom of the left side plate 32 and the right side plate 33 are connected as one piece by two connecting rods. The two connecting rods can be screws, and the left side plate and the right side plate are fixed by nuts. A pulley 31 is installed at the bottom of the traveling vehicle 3. Two driven rollers 36 are rotatably connected to the inner side of the left side plate 32 via a shaft and bearing assembly. The housing of the traveling motor 34 is fixedly mounted on the outer side of the right side plate 33 by bolts, so that the output shaft of the traveling motor 34 passes through the right side plate 33 and extends to the inner side. A drive roller 35 is installed on the inner side of the right side plate 33 and is fixedly connected to the output shaft of the traveling motor 34, thereby driving the drive roller 35 to rotate. The drive roller 35 and driven rollers 36 are respectively installed in the guide grooves 21 on the inner and outer sides of the track 2 to realize the assembly between the traveling vehicle and the track. With this design, the traveling vehicle can move along the track by the traveling motor.

[0022] The traction system is located above the feed inlet 11 and mainly includes a traction device 6, a forward traction rope 7, and a reverse traction rope 8. The traction device 6 includes a support plate 61, a rotating frame 62, a first traction motor 63, and a second traction motor 64. The support plate 61 is fixed to the inner wall of the hopper 1 by bolt assemblies and is located above the feed inlet 11. Horizontal plates distributed vertically are welded onto the support plate 61, so that the upper and lower ends of the rotating frame 62 are rotatably connected to the two horizontal plates of the support plate 61 by rotating shafts. The housings of the first traction motor 63 and the second traction motor 64 are fixed to the rotating frame 62 by bolt assemblies, so that the second traction motor 64 is located above the first traction motor 63. Traction cylinders are installed on the output shafts of both the first traction motor 63 and the second traction motor 64. The forward traction rope 7 and the reverse traction rope 8 are respectively wound around the traction cylinders of the first traction motor 63 and the second traction motor 64.

[0023] like Figure 7-8 As shown, the towing bucket 4 is made of wear-resistant steel plate into a box structure. The interior of the towing bucket 4 is equipped with a filling chamber, and a feed inlet 41 connected to the filling chamber is machined at the front end. The traction end of the forward traction rope 7 is divided into two strands and respectively connected to the left and right sides of the feed inlet 41 of the towing bucket 4. This design allows the towing bucket 4 to be towed by the first traction motor 63. The rear end of the towing bucket 4 is designed as an arc-shaped side wall 42. A discharge port 43 is machined near the lower part of the arc-shaped side wall 42, and an opening and closing device 5 is installed at the rear end of the towing bucket 4 to control the opening and closing of the discharge port 43. The opening and closing device 5 includes a rotating shaft 51, an arc-shaped plate 52, and two rotating arms 53. The two ends of the rotating shaft 51 are rotatably connected to the left and right side walls of the hauling bucket 4 via bearing assemblies. The arc-shaped plate 52 is mounted on the inner side of the arc-shaped side wall 42, allowing it to rotate up and down along its trajectory. The left and right sides of the arc-shaped plate 52 are fixed to the rotating shaft 51 via connecting plates. The two rotating arms 53 are located on the left and right sides of the hauling bucket 4 and are connected to the left and right ends of the rotating shaft 51, respectively. The traction end of the reverse traction rope 8 passes over the rope wheel 31 of the traveling vehicle 3 and is connected to the ends of the two rotating arms 53 on the opening and closing device 5. When the reverse traction rope 8 is pulled backward, the rotating arms 53 drive the rotating shaft 51 to rotate the arc-shaped plate 52, opening the discharge port 43. When the reverse traction rope 8 loosens, the arc-shaped plate 52 returns to its original position under its own weight, closing the discharge port 43.

[0024] The sector-shaped hopper feeding system described in this embodiment needs to be used in conjunction with the existing aggregate supply system to achieve aggregate feeding. The walking motor, the first traction motor, and the second traction motor are all electrically connected to the controller, which controls the operation of the walking motor, the first traction motor, and the second traction motor. The controller is a conventional technology and will not be described in detail here. The specific working principle of the sector-shaped hopper feeding system described in this embodiment is as follows: In the silo, materials such as sand and gravel aggregates are piled up in each sector-shaped unit area to form a material zone. When it is necessary to select materials from a specific sector-shaped unit area, the controller controls the traveling vehicle 3 to move. The traveling vehicle 3 drives the towing bucket 4 along the track 2 until it stops when it is in the sector-shaped unit area. It is worth noting that during this process, the rotating frame 62 can be passively rotated because it is rotatably connected to the support plate 61, thus avoiding interference between the ropes of the forward and reverse traction ropes and the support plate 61. At this time, the towing bucket is located outside the sector unit area. The first traction motor controls the forward traction rope 7 to pull the towing bucket 4 towards the feed port 11. At the same time, the second traction motor controls the reverse traction rope 8 to follow the towing bucket 4. When the towing bucket 4 passes through the material area, the material enters the filling chamber from the feed port 41 of the towing bucket 4. When the towing bucket 4 is dragged to the feeding port 11, the second traction motor controls the reverse traction rope 8 to pull the opening and closing device 5 to open the discharge port 43 at the rear end of the towing bucket 4. The material in the towing bucket 4 falls from the discharge port 43 into the feeding port 11, and finally enters the hopper 9. Under the action of the conveying device, it enters the aggregate hopper of the aggregate supply system for subsequent quantitative feeding.

[0025] The above solution replaces the traditional method of loading materials by manning a loader. The forward and reverse traction of the towing bucket enables the transportation and loading of materials. Combined with the rail, it enables loading from multiple angles, greatly improving the site utilization efficiency of the silo. Moreover, it eliminates the need for manpower and vehicle operation, thus improving safety.

[0026] Example 2 Based on the sector-shaped hopper feeding system described in Embodiment 1, this embodiment discloses a sector-shaped hopper feeding method, such as... Figure 1-9 As shown, materials are stacked within each sector-shaped unit area to form a material zone, which includes the following steps: S10. When it is necessary to select materials in a specific sector unit area, control the traveling vehicle 3 and the tractor 4 to travel together along the track 2 until they are in the sector unit area and then stop. S20, the first traction motor of the traction device 6 controls the forward traction rope 7 to pull the tow bucket 4 towards the feed port 11, while the second traction motor controls the reverse traction rope 8 to follow the tow bucket 4. S30. When the towing bucket 4 passes through the material area, the material enters the filling chamber from the feed port 41 of the towing bucket 4. S40. When the towing bucket 4 is dragged to the feeding port 11, the second traction motor of the traction device 6 controls the reverse traction rope 8 to pull the opening and closing device 5 to open the rear end of the towing bucket 4. The material in the towing bucket 4 falls from the rear end into the feeding port 11 and then enters the hopper 9 to achieve feeding through the aggregate feeding system. In this step, such as Figure 10-11 As shown, in order to speed up the process of material falling from the towing bucket 4 into the hopper 9, the width of the loading port 11 needs to be greater than the width of the towing head 4. At the same time, to prevent the towing bucket from falling into the loading port 11, two horizontally distributed sliding rods 15 are installed on the loading port 11. An incline 16 is set on the inner side of the loading port 11. When the towing bucket 4 is towed to the area of ​​the loading port 11, the sliding rods 15 can assist in supporting the towing bucket 4. The second traction motor controls the reverse traction rope 8 to pull the opening and closing device 5 to open the discharge port of the towing bucket 4. The material in the towing bucket 4 falls from the discharge port into the loading port 11 (it is worth noting that the gap of the sliding rods 15 is large enough to prevent material blockage). The forward traction rope continues to pull the towing bucket, causing the towing bucket to move onto the incline 16. The entire towing bucket tilts, speeding up the entry of material into the loading port 11. S50, the second traction motor of the traction device 6 controls the reverse traction rope 8 to pull the tow bucket 4 in the opposite direction, while controlling the forward traction rope 7 to follow the tow bucket 4 until the tow bucket 4 moves to the bottom of the traveling vehicle 3 and stops. S60. Repeat steps S10-S50 to achieve material feeding in specific sector-shaped unit areas.

[0027] It is worth noting that the arc of track 2 is 180°, and the corresponding fan-shaped area is also 180°. In order to improve the loading efficiency, two towing buckets 4, two traction systems and two traveling vehicles 3 are equipped on the same track 2. This design allows one towing bucket 4 to carry out loading operations in the fan-shaped area within the range of 0-90°, and the other towing bucket 4 to carry out loading operations in the fan-shaped area within the range of 90°-180°. The aforementioned fan-shaped hopper feeding method replaces the traditional method of manually operating a loader for feeding, which not only improves feeding efficiency but also increases site utilization, ensures operational safety, reduces concrete quality problems such as mixing and misplacing materials that are prone to occur during manual feeding, and lowers production costs.

Claims

1. A fan-shaped hopper feeding system, characterized in that, Including, The silo (1) has a fan-shaped area for stacking materials, and the center of the fan-shaped area is provided with a feeding port (11). Track (2), which is arranged above the hopper (1) and distributed along the outer arc of the fan-shaped area; The traveling vehicle (3) is mounted on the track (2) and can move relative to it; The towing bucket (4) has a built-in filling chamber, a feed inlet (41) at its front end, and an opening and closing device (5) at its rear end. The traction system is located above the loading port (11) and includes a traction device (6), a forward traction rope (7) and a reverse traction rope (8). One end of the forward traction rope (7) is connected to the traction device (6) and the other end is connected to the front end of the towing bucket (4). One end of the reverse traction rope (8) is connected to the traction device (6) and the other end passes through the traveling vehicle (3) and is connected to the opening and closing device (5) of the towing bucket (4).

2. The sector-shaped hopper feeding system according to claim 1, characterized in that, The sector area is divided into multiple sector unit areas by multiple partition walls (12).

3. The sector-shaped hopper feeding system according to claim 2, characterized in that, The traction device (6) includes a support plate (61), a rotating frame (62), a first traction motor (63) and a second traction motor (64). The upper and lower ends of the rotating frame (62) are rotatably connected to the support plate (61), and the first traction motor (63) and the second traction motor (64) are fixedly connected to the rotating frame (62). The output shafts of the first traction motor (63) and the second traction motor (64) are both equipped with traction drums, and the forward traction rope (7) and the reverse traction rope (8) are respectively wound around the traction drums of the first traction motor (63) and the second traction motor (64).

4. The sector-shaped hopper feeding system according to claim 2, characterized in that, The bottom of the traveling vehicle (3) is provided with a rope wheel (31), and the reverse traction rope (8) passes around the rope wheel (31) and is connected to the opening and closing device (5) of the towing bucket (4).

5. The sector-shaped hopper feeding system according to claim 4, characterized in that, The inner and outer arc surfaces of the track (2) are provided with guide grooves (21); The walking vehicle (3) includes a left side plate (32), a right side plate (33) and a walking motor (34). The bottoms of the left side plate (32) and the right side plate (33) are connected as one unit by a connecting rod. At least one driven roller (36) is rotatably connected to the inner side of the left side plate (32), and an active roller (35) is rotatably connected to the inner side of the right side plate (33). The walking motor (34) is installed on the outer side of the right side plate (33), and the output shaft of the walking motor (34) drives the active roller (35) to rotate. The driving roller (35) and the driven roller (36) are respectively assembled in the guide grooves (21) on the inner and outer sides of the track (2).

6. The sector-shaped hopper feeding system according to claim 2, characterized in that, The traction end of the forward traction rope (7) is divided into two strands and connected to the left and right sides of the feed inlet (41) of the tractor bucket (4); The rear end of the towing bucket (4) is an arc-shaped sidewall (42), and the lower part of the arc-shaped sidewall (42) is provided with a discharge port (43). The opening and closing device (5) includes a rotating shaft (51), an arc plate (52) and two rotating arms (53). The two ends of the rotating shaft (51) are respectively rotatably connected to the left and right side walls of the towing bucket (4). The arc plate (52) is mounted on the inner side of the arc-shaped sidewall (42). The left and right sides of the arc plate (52) are respectively fixedly connected to the rotating shaft (51). The two rotating arms (53) are located on the left and right sides of the towing bucket (4) and are respectively connected to the left and right ends of the rotating shaft (51). The traction end of the reverse traction rope (8) is divided into two strands and connected to the ends of the two rotating arms (53) respectively. When the reverse traction rope (8) is pulled backward, the arc plate (52) rotates to open the discharge port (43).

7. The sector-shaped hopper feeding system according to claim 2, characterized in that, The silo (1) includes a base plate (13) and a surrounding plate (14) set on the base plate (13). The partition wall (12) is vertically fixed on the base plate (13). The partition wall (12) divides the fan-shaped area into multiple fan-shaped unit areas. The top edge of the partition wall (12) slopes downward in the direction away from the center.

8. The sector-shaped hopper feeding system according to claim 7, characterized in that, Each sector unit area has a feeding port (11) at its center, and a hopper (9) is provided below the feeding port (11).

9. The sector-shaped hopper feeding system according to any one of claims 2-8, characterized in that, The number of sector-shaped unit areas is 4-6.

10. A method for feeding materials into a fan-shaped hopper, characterized in that, The fan-shaped silo feeding system according to any one of claims 2-9 is used for feeding, and materials are piled up in each fan-shaped unit area to form a material area; It includes the following steps: S10. When it is necessary to select materials in a specific sector unit area, control the traveling vehicle (3) and the tractor (4) to travel together along the track (2) until they are in the sector unit area and then stop. S20, The traction device (6) controls the forward traction rope (7) to pull the tow bucket (4) towards the feed inlet (11), while controlling the reverse traction rope (8) to follow the tow bucket (4) to move. S30. When the towing bucket (4) passes through the material area, the material enters the filling chamber from the feed port (41) of the towing bucket (4); S40. When the towing bucket (4) is dragged to the feeding port (11), the traction device (6) controls the reverse traction rope (8) to pull the opening and closing device (5) to open the rear end of the towing bucket (4), and the material in the towing bucket (4) falls into the feeding port (11) from the rear end. S50, the traction device (6) controls the reverse traction rope (8) to pull the tow bucket (4) in the opposite direction, while controlling the forward traction rope (7) to follow the tow bucket (4) until the tow bucket (4) moves to the bottom of the traveling vehicle (3) and stops. S60. Repeat steps S10-S50 to achieve material feeding in specific sector-shaped unit areas.

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