An unattended central kitchen feeding system for a ranch

Abstract

The utility model discloses an unattended central kitchen feeding system for pasture, including first conveyer, concentrate feed feeding conveyer, multiple coarse fodder feeder, second conveyer, track, feeding robot, feeding groove, multiple concentrate feed mixer, concentrate feed unloading conveyer, first conveyer sets up on ground, multiple coarse fodder feeder sets up in first conveyer one side, second conveyer sets up in first conveyer end, track sets up in second conveyer's end, and feeding robot sets up on the track, and feeding groove sets up in track one side, and the support is set up in feeding groove bottom, and multiple concentrate feed mixer sets up in second conveyer one side, and each concentrate feed mixer is connected with concentrate feed unloading conveyer, and each concentrate feed unloading conveyer is connected with concentrate feed feeding conveyer, and concentrate feed feeding conveyer is connected with feeding robot. The utility model discloses can realize the pasture automation feeding, has reduced the labor intensity of artificial feeding, has reduced the waste of feed.

Description

Technical Field

[0001] This utility model relates to the field of ranch feeding equipment technology, and in particular to an unattended central kitchen feeding system for ranches. Background Technology

[0002] With the large-scale development of global livestock farming, ranching is gradually transforming towards intensification and intelligentization. Cattle, as an important economic livestock species, are directly linked to the economic benefits of ranches through their healthy growth and scientific feeding. However, traditional manual feeding methods and existing automated equipment still have significant shortcomings, hindering improvements in production efficiency and animal welfare.

[0003] Traditional ranches rely on manual feeding, requiring a large workforce for feed handling, mixing, and scheduled delivery. This model suffers from low efficiency, high labor costs, and significant operational errors. Manual feed mixing is prone to nutritional imbalances due to lack of experience, impacting herd growth rates and milk production. Feed is susceptible to environmental factors (such as humidity and pollution), leading to spoilage and increasing waste and disease transmission risks. Under traditional feeding methods, feed spillage, spoilage, and overfeeding result in waste rates as high as 15%-20%. While existing automated systems partially reduce waste, they do not achieve end-to-end optimization of feed storage, distribution, and recycling. For example, open feed trough designs easily lead to feed oxidation or contamination, and the lack of a waste recovery mechanism further exacerbates resource depletion. With increasingly stringent environmental policies, reducing carbon emissions and feed costs has become a major industry challenge, and current technologies have not yet provided a systematic solution. Utility Model Content

[0004] This utility model provides an unattended central kitchen feeding system for ranches, which solves the problems of traditional ranches relying on manual feeding, such as being time-consuming, labor-intensive, inefficient, having high labor costs, large operational errors, and waste caused by the inability to recycle leftover feed from the feed troughs.

[0005] This utility model provides an unattended central kitchen feeding system for ranches, comprising:

[0006] The first conveyor is horizontally set on the ground and is used to transport roughage over long distances.

[0007] Multiple roughage feeders are spaced apart on the ground on one side of the first conveyor to feed various types of roughage onto the first conveyor. The multiple roughage feeders are used to pre-process different types of roughage and feed the roughage onto the first conveyor in a stable manner.

[0008] The second conveyor is inclinedly installed at the end of the first conveyor to tilt and lift the material for conveying.

[0009] Concentrated feed conveyor;

[0010] The track is horizontally positioned longitudinally at the end of the second conveyor;

[0011] The feeding robot is slidably mounted on a track.

[0012] The feeding trough is set parallel to one side of the track, and a bracket is installed at the bottom of the feeding trough to suspend and support it.

[0013] Multiple concentrate feed mixers are installed on the ground on one side of the second conveyor;

[0014] Concentrated feed unloading conveyor;

[0015] The discharge port of each concentrate feed mixer is connected to the feed inlet of the concentrate feed unloading conveyor, the discharge end of each concentrate feed unloading conveyor is connected to the feed inlet of the concentrate feed feeding conveyor, and the discharge end of the concentrate feed feeding conveyor is connected to the feeding robot.

[0016] In the above technical solution, the roughage feeder further includes a first support, a chain conveyor, a roller, first helical blades, a first drive mechanism, and a protective cover. The chain conveyor is mounted on the first support. Two vertical side plates are fixedly mounted on the conveyor frames on both sides of the chain conveyor. A vertical plate is fixedly mounted on the conveyor frame at the front end of the chain conveyor. A horizontal roller is mounted between the two side plates at the rear end of the chain conveyor. The roller is located above the chain conveyor. Two half-shafts are coaxially mounted at both ends of the roller. The two half-shafts are rotatably connected to two first shaft seats corresponding to the two side plates. A first drive mechanism for driving the half-shafts to rotate is mounted on the outer wall of one of the side plates. Two sections of first helical blades are mounted on the side wall of the roller from the middle to both sides. A horizontal crossbeam is mounted between the two side plates. The crossbeams are located below the upper conveyor chain of the chain conveyor and are arranged in a linear array along the conveying direction. A horizontal support plate is mounted on each crossbeam.

[0017] In the above technical solution, the conveyor chains of the chain conveyor are further connected and positioned by multiple positioning rods.

[0018] In the above technical solution, the rear end of the chain conveyor is further provided with a protective cover that is fixedly connected to the two side plates.

[0019] In the above technical solution, the first drive mechanism further includes a first motor base, a first motor, and a first reducer. The first motor base is fixedly mounted on the side plate. The first motor and the first reducer are mounted on the first motor base. One half-shaft extends through the side plate to the outside and is splinedly connected to the output end of the first reducer. The input end of the first reducer is splinedly connected to the output shaft of the first motor.

[0020] In the above technical solution, the two first helical blades on the side wall of the drum have opposite helical directions.

[0021] In the above technical solution, the chain conveyor is further inclined on the first support, and the angle between the chain conveyor and the ground is 30 degrees.

[0022] In the above technical solution, the feeding robot further includes a chassis, a first hopper, a first mixing mechanism, a scraper conveyor, a belt conveyor, and wheels. Four sets of wheels are installed at the bottom of the chassis. The mixing mechanism is installed inside the first hopper. A second drive mechanism for driving the mixing mechanism to mix the materials is installed at the bottom of the first hopper. A discharge port is installed on the lower side wall of the first hopper. The discharge port is equipped with a discharge gate. The upper edge of the discharge gate is hinged to the side wall of the first hopper. A first hydraulic cylinder is installed above the discharge gate. The fixed end of the first hydraulic cylinder is hinged to a first hinge seat installed on the side wall of the first hopper. The telescopic end of the first hydraulic cylinder is hinged to a second hinge seat installed on the side wall of the discharge gate. A horizontal belt conveyor is installed longitudinally on the chassis on one side of the discharge port.

[0023] In the above technical solution, a protective shell is further provided above the belt conveyor, and a notch communicating with the discharge port is provided on the side wall of the protective shell. An inclined discharge plate is provided at the bottom of the discharge end of the belt conveyor.

[0024] In the above technical solution, the two ends of the central axle of the traveling wheel are rotatably connected to the axle seat on the chassis. The axle seat is a rectangular box structure with open top and bottom. A flange is provided at the upper end of the axle seat and fixedly connected to the chassis. The traveling wheel is vertically installed in the axle seat, and the lower end of the traveling wheel does not extend out of the axle seat. The traveling wheel is a train wheel, and its bottom is supported and guided by a rail. Each axle seat of the two traveling wheels is equipped with a traveling wheel drive mechanism. Each traveling wheel drive mechanism includes a drive motor, a drive gear, and a driven gear. The shaft flange of the drive motor is fixedly connected to the side wall of the axle seat. The drive gear is coaxially fixed on the output shaft of the drive motor. The driven gear is coaxially fixed on the central axle of the traveling wheel on one side of the drive gear. The drive gear and the driven gear can mesh and transmit power.

[0025] In the above technical solution, the scraper conveyor further includes a conveying pipe, a drive chain, a head sprocket, a tail sprocket, a scraper, a tail drive shaft, a waste material discharge conveyor, a rolling support mechanism, and a head drive shaft. The conveying pipe has a rectangular cross-section and is inclinedly arranged on one side of the first hopper. Two fixed seats are provided at the bottom of the conveying pipe. A positioning steel frame is provided on the chassis below the conveying pipe. Each fixed seat is connected to a corresponding U-shaped seat on the positioning steel frame through a connecting plate. One end of the connecting plate is fixedly connected to the fixed seat, and the other end extends into the U-shaped seat and is hinged to the U-shaped seat through a pin. A second hydraulic cylinder is provided between the two fixed seats. The fixed end of the second hydraulic cylinder is hinged to a third hinge seat on the positioning steel frame, and the other end is hinged to a fourth hinge seat at the bottom of the conveying pipe. Two head sprockets are provided on both sides inside the lower end of the conveying pipe, and the two head sprockets are spaced apart on the head drive shaft. The head drive shaft is rotatably connected to the two side walls at the lower end of the conveying pipe at both ends. Two tail sprockets are set on both sides inside the upper end of the conveying pipe. The two tail sprockets are spaced apart on the tail drive shaft. The tail drive shaft is rotatably connected to the two side walls at the upper end of the conveying pipe at both ends. Two drive chains are set on both sides inside the conveying pipe. Each drive chain is connected to the corresponding head sprocket and tail sprocket on one side. Multiple scrapers are set between the two drive chains. Two rolling support mechanisms are symmetrically set on the two outer side walls at the lower end of the conveying pipe. Each rolling support mechanism includes a wheel seat and a rolling body rotatably set on the wheel seat. A horizontal residual material discharge conveyor is set below the discharge port at the upper end of the conveying pipe. The residual material discharge conveyor is fixedly connected to the conveying pipe. The discharge end of the residual material discharge conveyor is located above the feeding port on one side of the first silo. The inlet of the residual material discharge conveyor and the outlet of the conveying pipe are sealed and connected by a dustproof shell.

[0026] In the above technical solution, the concentrate feed mixer further includes a third support, a mixing bin, a spiral lifting pipe, a feed lifting pipe, a spiral lifting shaft, a third spiral blade, and a third motor. The mixing bin is mounted on the third support, and the lower end of the mixing bin is configured with a conical wall. The first outlet at the lower end of the conical wall is connected to the feed lifting pipe. A first sealing plate is provided at the lower end of the feed lifting pipe, and a first feed inlet is provided on the lower side wall of the feed lifting pipe. The outer end of the first feed inlet is connected to a horizontal feed pipe. One end of the feed pipe is sealed to the first feed inlet, and the other end is suspended and sealed by a second sealing plate. A feed hopper is provided at the top of the feed pipe, and the second outlet of the feed hopper is connected to the top of the feed pipe. The second feed inlet is connected to the mixing silo. A spiral lifting pipe is coaxially installed inside the mixing silo. The upper end of the spiral lifting pipe is connected to the silo cover of the mixing silo. A spiral lifting shaft is coaxially installed inside the mixing silo. The spiral lifting shaft is sleeved inside the spiral lifting pipe and the feed lifting pipe. The spiral lifting pipe is located above the feed lifting pipe. The upper end of the spiral lifting shaft is rotatably connected to the second shaft seat installed on the silo cover of the mixing silo. The lower end of the spiral lifting shaft passes through the first sealing plate at the lower end of the feed lifting pipe and is rotatably connected to the third shaft seat installed at the bottom of the first sealing plate. A second pulley and a third pulley are coaxially installed at the lower end of the spiral lifting shaft. A third discharge port is installed on the lower side wall of the conical silo wall. The outer end of the third discharge port is connected to the discharge pipe.

[0027] In the above technical solution, a first bearing seat is further provided at the bottom of the feed pipe, and a vertical impeller shaft is rotatably arranged inside the first bearing seat. The upper end of the impeller shaft extends upward through the bottom side wall of the feed pipe into the feed pipe. Multiple blades are arranged along the circumferential direction at the upper end of the impeller shaft, and a first pulley is coaxially arranged at the lower end of the impeller shaft. A third motor is arranged on the third bracket, and a fourth pulley is coaxially arranged on the output shaft of the third motor. The first pulley and the second pulley are connected and driven by a first transmission belt, and the third pulley and the fourth pulley are connected and driven by a second transmission belt. A first observation port and a second observation port are provided on the silo cover. The upper end of the spiral lifting pipe is located below the silo cover. Multiple radially distributed angle steels are arranged along the circumferential direction on the side wall of the upper end of the spiral lifting pipe. One end of each angle steel is welded and fixedly connected to the spiral lifting pipe, and the other end is suspended. The suspended end of each angle steel is connected to the top of the silo cover by a first screw. The spiral lifting pipe is connected to the inner wall of the mixing silo by a second screw.

[0028] A PLC controller is installed on the chassis.

[0029] As can be seen from the above technical solutions, this utility model provides an unattended central kitchen feeding system for ranches.

[0030] Compared with the prior art, the beneficial effects of this utility model are:

[0031] This invention pre-treats roughage using a roughage feeder and pre-mixes concentrate using a concentrate feed mixer. Roughage and concentrate are then sequentially conveyed to a feeding robot via a first and second conveyor, resulting in high conveying efficiency. The feeding robot mixes the roughage and concentrate and distributes the mixture evenly into the feeding trough for feeding livestock. This ensures uniform distribution, high efficiency, and good feeding results. After feeding, residual feed in the feeding trough is collected via a waste feed discharge conveyor, reducing feed waste and increasing feed utilization. By integrating the roughage and concentrate mixing process with the feeding process, the farm feeding process is automated, achieving a high degree of automation and saving labor costs. Attached Figure Description

[0032] To more clearly illustrate the technical solution of this utility model, the drawings used in the implementation examples will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0033] Figure 1 This is a top view of the overall structure of this utility model;

[0034] Figure 2 This is a three-dimensional structural diagram of the roughage feeder of this utility model;

[0035] Figure 3 This is a side view schematic diagram of the roughage feeder structure of this utility model;

[0036] Figure 4 This is a schematic diagram showing the installation position of the feeding robot of this utility model;

[0037] Figure 5 This is a cross-sectional schematic diagram of the internal structure of the first feed bin of the feeding robot of this utility model;

[0038] Figure 6 This is a three-dimensional structural diagram of the feeding robot of this utility model;

[0039] Figure 7 Appendix to this utility model Figure 6 A partially enlarged structural diagram of position I;

[0040] Figure 8 This is a schematic diagram of the internal structure of the scraper conveyor of this utility model;

[0041] Figure 9 This is a schematic diagram of the bottom structure of the feeding robot of this utility model;

[0042] Figure 10 This is a three-dimensional structural diagram of the concentrate feed mixer of this utility model;

[0043] Figure 11 This is a cross-sectional view of the internal structure of the concentrate feed mixer of this utility model;

[0044] Figure 12 Appendix to this utility model Figure 11 A magnified schematic diagram of the structure at position II.

[0045] In the picture:

[0046] 1-First conveyor;

[0047] 2-Roughage feeder; 21-First support; 22-Chain conveyor; 23-Drum; 24-First spiral blade; 26-First drive mechanism; 27-Protective cover; 220-Conveyor chain; 221-Conveyor frame; 222-Side plate; 223-Upright plate; 224-Crossbeam; 225-Support plate; 226-Positioning rod;

[0048] 3-Second conveyor;

[0049] 4-Concentrated feed conveyor;

[0050] 5-track;

[0051] 6-Feeding robot; 61-Chassis; 62-First hopper; 63-First mixing mechanism; 64-Scraper conveyor; 65-Belt conveyor; 66-Wheel; 67-Protective shell; 621-Mixing mechanism; 622-Discharge port; 623-Discharge gate; 624-First hydraulic cylinder; 641-Feeding pipe; 642-Drive chain; 643-Head sprocket; 644-Tail sprocket; 645-Scraper; 646- Tail drive shaft; 647 - Excess material discharge conveyor; 648 - Rolling support mechanism; 649 - Head drive shaft; 651 - Discharge plate; 661 - Wheel axle seat; 6211 - Mixing shaft; 6212 - Mixer; 6411 - Fixed seat; 6412 - Positioning steel frame; 6413 - U-shaped seat; 6414 - Connecting plate; 6415 - Second hydraulic cylinder; 6471 - Dustproof housing; 6481 - Wheel seat; 6482 - Rolling element;

[0052] 7-Feeding trough;

[0053] 8-Fine feed mixer; 81-Third support; 82-Mixing bin; 83-Spiral lift pipe; 84-Feed lift pipe; 85-Spiral lift shaft; 86-Third spiral blade; 87-Third motor; 821-Conical bin wall; 822-Binary bin cover; 831-Angle steel; 832-First screw; 833-Second screw; 841-First sealing plate; 842-Feed pipe; 843-Second sealing plate; 844-Feed hopper; 845-Impeller shaft; 846-Blade; 847-First pulley; 851-Second pulley; 852-Third pulley; 853-Fourth pulley; 854-Discharge pipe; 8221-First observation port; 8222-Second observation port;

[0054] 9-Concentrated feed unloading conveyor. Detailed Implementation

[0055] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0056] Example 1:

[0057] See Figure 1-12 An unattended central kitchen feeding system for ranches includes:

[0058] The first conveyor 1 is horizontally arranged on the ground along the transverse direction;

[0059] Four roughage feeders 2 are spaced apart on the ground on one side of the first conveyor 1 to feed various roughages onto the first conveyor 1.

[0060] The second conveyor 3 is inclinedly installed at the end of the first conveyor 1 to tilt and lift the material for conveying.

[0061] Concentrated feed conveyor 4;

[0062] Track 5 is horizontally positioned longitudinally at the end of the second conveyor 3;

[0063] Feeding robot 6 is slidably mounted on track 5;

[0064] Feeding trough 7 is arranged parallel to one side of track 5, and a bracket is provided at the bottom of feeding trough 7 to suspend and support the feeding trough in the air.

[0065] Two concentrate feed mixers 8 are set on the ground on one side of the second conveyor 3;

[0066] Concentrated feed unloading conveyor 9;

[0067] The discharge ports of the two feed mixers 8 are connected to the feed inlets of the two feed unloading conveyors 9, the discharge ends of the two feed unloading conveyors 9 are connected to the feed inlet of the feed feeding conveyor 4, and the discharge end of the feed feeding conveyor 4 is connected to the feeding robot 6.

[0068] This invention uses a roughage feeder 2 to pre-treat roughage and a concentrate feed mixer 8 to pre-treat and mix concentrate feed. The roughage and concentrate feed are then conveyed sequentially to a feeding robot 6 via a first conveyor 1 and a second conveyor 3, resulting in high conveying efficiency. The feeding robot 6 mixes the roughage and concentrate feed and distributes it evenly into the feeding trough 7 for feeding livestock. The distribution is uniform, efficient, and effective. After feeding, the remaining feed in the feeding trough can be recycled via a waste feed discharge conveyor, reducing feed waste and increasing feed utilization. By integrating the roughage and concentrate feed mixing process with the feeding process, the farm feeding process can be automated and unmanned.

[0069] In this embodiment, specifically, see [link to relevant documentation]. Figure 1 , 2 3. The roughage feeder 2 includes a first support 21, a chain conveyor 22, a roller 23, a first spiral blade 24, a first drive mechanism 26, and a protective cover 27. The chain conveyor 22 is mounted on the first support 21. Two vertical side plates 222 are fixedly mounted on the conveyor frames 221 on both sides of the chain conveyor 22. A vertical upright plate 223 is fixedly mounted on the front conveyor frame 221 of the chain conveyor 22. A horizontal roller 23 is mounted between the two side plates 222 at the rear end of the chain conveyor 22. The roller 23 is located above the chain conveyor 22. Two half-shafts are coaxially arranged at both ends of the roller 23. The two half-shafts are rotatably connected to two first shaft seats corresponding to the two side plates 222. A first drive mechanism 26 for driving the half-shaft to rotate is provided on the outer wall of one of the side plates 222. Two first spiral blades 24 are arranged from the middle to both sides on the side wall of the roller 23. A horizontal crossbeam 224 is arranged between the two side plates 222. The crossbeams 224 are located below the upper conveying chain 220 of the chain conveyor 22 and are arranged in a linear array along the conveying direction. A horizontal support plate 225 is arranged on each crossbeam 224.

[0070] In this embodiment, see Figure 2 , 3 The conveyor chains 220 of the chain conveyor 22 are connected and positioned by multiple positioning rods 226. The multiple positioning rods 226 facilitate the movement of coarse feed on the support plate 225 along the conveyor drive, preventing material accumulation on the support plate 225.

[0071] In this embodiment, see Figure 2The rear end of the chain conveyor 22 is provided with a protective cover 27 that is fixedly connected to the two side plates 222. The protective cover 27 can prevent the material at the end of the chain conveyor 22 from falling off the first conveyor 1.

[0072] In this embodiment, the first drive mechanism 26 includes a first motor base, a first motor, and a first reducer. The first motor base is fixedly mounted on the side plate 222. The first motor and the first reducer are mounted on the first motor base. One half shaft extends through the side plate 222 to the outside and is splinedly connected to the output end of the first reducer. The input end of the first reducer is splinedly connected to the output shaft of the first motor. The output shaft of the first motor drives the first reducer to rotate the half shaft.

[0073] In this embodiment, see Figure 2 The two sections of first spiral blades 24 on the side wall of the drum 23 have opposite spiral directions. The two sections of first spiral blades 24 can gather and compress the coarse feed on the chain conveyor 22 towards the middle, reduce the space occupied by the coarse feed, and improve the conveying efficiency.

[0074] In this embodiment, the chain conveyor 22 is inclined on the first support 21, and the angle between the chain conveyor 22 and the ground is 30 degrees to prevent the conveyed feed from piling up.

[0075] In this embodiment, see Figure 4 , 56, 7, 8. The feeding robot 6 includes a chassis 61, a first hopper 62, a first mixing mechanism 63, a scraper conveyor 64, a belt conveyor 65, and wheels 66. The chassis 61 has four sets of wheels 66 at its bottom. The first hopper 62 has an elliptical cylindrical cross-section, wider at the top and narrower at the bottom. A mixing mechanism 621 is installed inside the first hopper 62. The mixing mechanism 621 includes a mixing shaft 6211 and a mixer 6212. The lower end of the mixing shaft 6211 extends through the bottom plate of the first hopper 62 to the bottom of the first hopper 62 and is rotatably connected to a bearing seat at the bottom of the first hopper 62. The mixer 6212 is mounted on the mixing shaft 6211 and has conical spiral blades coaxially fixed to the mixing shaft. A second drive mechanism is located at the bottom of the first hopper 62 for driving the mixing mechanism 621 to mix the materials. The second drive mechanism includes a stirring motor, a motor mounting base, and a coupling. The output shaft of the stirring motor is coaxially and fixedly connected to the stirring shaft through the coupling. A discharge port 622 is provided on the lower side wall of the first silo 62. A discharge gate 623 is provided on the discharge port 622. The upper edge of the discharge gate 623 is hinged to the side wall of the first silo 62. A first hydraulic cylinder 624 is provided above the discharge gate 623. The fixed end of the first hydraulic cylinder 624 is hinged to the first hinge seat provided on the side wall of the first silo 62. The telescopic end of the first hydraulic cylinder 624 is hinged to the second hinge seat provided on the side wall of the discharge gate 623. A horizontal belt conveyor 65 is provided longitudinally on the chassis 61 on one side of the discharge port 622. The discharge port 622 can be opened to discharge material by driving the discharge gate 623 up and down through the first hydraulic cylinder 624.

[0076] In this embodiment, see Figure 5 A protective shell 67 is provided above the belt conveyor 65. A notch is provided on the side wall of the protective shell 67, which communicates with the discharge port 622. The material discharged from the discharge port 622 can be discharged from the side of the belt conveyor 65 onto the belt conveyor 65 through the notch. An inclined discharge plate 651 is provided at the bottom of the discharge end of the belt conveyor 65 to facilitate the material to enter the feeding trough 7 and prevent the material from spilling out.

[0077] In this embodiment, see Figure 8 The two ends of the central axle of the traveling wheel 66 are rotatably connected to the axle seat 661 on the chassis 61. The axle seat 661 is a rectangular box structure with open top and bottom. The upper end of the axle seat 661 is provided with a flange and is fixedly connected to the chassis 61. The traveling wheel 66 is vertically arranged in the axle seat 661, and the lower end of the traveling wheel 66 does not extend out of the axle seat 661. The traveling wheel 66 is a train wheel, and its bottom is supported and guided by the rail 5. Each of the axle seats 661 of the two traveling wheels 66 is provided with a reduction motor for driving the rotation of the traveling wheel 66. The reduction motor is controlled by a driver. The output shaft of the reduction motor is coaxially and fixedly connected to the central rotating shaft of the traveling wheel 66. The shaft end flange of the reduction motor is fixedly connected to the axle seat 661.

[0078] In this embodiment, see Figure 7 The scraper conveyor 64 includes a conveying pipe 641, a drive chain 642, a head sprocket 643, a tail sprocket 644, a scraper 645, a tail drive shaft 646, a waste material discharge conveyor 647, a rolling support mechanism 648, and a head drive shaft 649. The conveying pipe 641 has a rectangular cross-section and is inclinedly arranged on one side of the first hopper 62. Two fixed seats 6411 are provided at the bottom of the conveying pipe 641. A positioning steel frame 6412 is provided on the chassis 61 below the conveying pipe 641. Each fixed seat 6411 is fixedly connected to a corresponding U-shaped seat 6413 provided on the positioning steel frame 6412 through a connecting plate 6414. One end of the connecting plate 6414 is fixedly connected to the fixed seat 6411, and the other end extends into the U-shaped seat 6413 and is hinged to the U-shaped seat 6413 via a pin. A second hydraulic cylinder 6415 is arranged between the two fixed seats 6411. The fixed end of the second hydraulic cylinder 6415 is hinged to the third hinge seat arranged on the positioning steel frame 6412, and the other end is hinged to the fourth hinge seat arranged at the bottom of the conveying pipe 641. Two head sprockets 643 are arranged on both sides of the lower end of the conveying pipe 641. The two head sprockets 643 are spaced apart on the head drive shaft 649. The two ends of the head drive shaft 649 are respectively connected to the two side walls of the lower end of the conveying pipe 641. A rotating connection is provided. Two tail sprockets 644 are installed on both sides of the upper interior of the feed pipe 641. The two tail sprockets 644 are spaced apart on a tail drive shaft 646. The two ends of the tail drive shaft 646 are rotatably connected to the two side walls of the upper end of the feed pipe 641, respectively. A drive motor is installed on the outer wall of the upper end of the feed pipe 641. The shaft flange of the drive motor is fixedly connected to the side wall of the feed pipe 641. The output shaft of the feed pipe 641 is coaxially fixedly connected to the tail drive shaft 646. Two drive chains 642 are installed on both sides inside the feed pipe 641. Each drive chain 642 is connected to a corresponding head sprocket 643 and tail sprocket 644 on one side. Multiple scrapers 645 are arranged between the chains 642. Two rolling support mechanisms 648 are symmetrically arranged on the two outer side walls of the lower end of the conveying pipe 641. Each rolling support mechanism 648 includes a wheel seat 6481 and a rolling body 6482 rotatably arranged on the wheel seat 6481. A horizontal residual material discharge conveyor 647 is arranged below the discharge port at the upper end of the conveying pipe 641. The residual material discharge conveyor 647 is fixedly connected to the conveying pipe 641. The discharge end of the residual material discharge conveyor 647 is located above the feeding port on one side of the first silo 62. The inlet of the residual material discharge conveyor 647 and the outlet of the conveying pipe 641 are sealed and connected by a dustproof housing 6471.

[0079] In this embodiment, see Figure 9 , 1011. The concentrate feed mixer 8 includes a third support 81, a mixing bin 82, a spiral lifting pipe 83, a feed lifting pipe 84, a spiral lifting shaft 85, a third spiral blade 86, and a third motor 87. The mixing bin 82 is mounted on the third support 81. The lower end of the mixing bin 82 is a conical bin wall 821. The first discharge port at the lower end of the conical bin wall 821 is connected to the feed lifting pipe 84. The lower end of the feed lifting pipe 84 is equipped with a first sealing plate 841. A first feed port is provided on the lower side wall of the feed lifting pipe 84. The outer end of the first feed port is connected to a horizontal feed pipe 842. One end of the feed pipe 842 is sealed to the first feed port, and the other end is suspended and sealed by a second sealing plate 843. A feed hopper 844 is provided at the top of the feed pipe 842. The second discharge port of the feed hopper 844 is connected to the second feed port at the top of the feed pipe 842. The spiral lifting pipe 83 is coaxially arranged inside the mixing bin 82. The upper end of the spiral lifting pipe 83 is connected to the cover 822 of the mixing silo 82. A spiral lifting shaft 85 is coaxially arranged inside the mixing silo 82. The spiral lifting shaft 85 is sleeved inside the spiral lifting pipe 83 and the feed lifting pipe 84. The spiral lifting pipe 83 is located above the feed lifting pipe 84. The upper end of the spiral lifting shaft 85 is rotatably connected to the second bearing seat provided on the cover 822 of the mixing silo 82. The lower end of the spiral lifting shaft 85 passes through the first sealing plate 841 at the lower end of the feed lifting pipe 84 and is rotatably connected to the third bearing seat provided at the bottom of the first sealing plate 841. The lower end of the spiral lifting shaft 85 is coaxially provided with a second pulley 851 and a third pulley 852. A third discharge port is provided on the lower side wall of the conical silo wall 821. The outer end of the third discharge port is connected to the discharge pipe 854. The outer end of the discharge pipe 854 is sealed to the inlet of the concentrate feed unloading conveyor 9. The concentrate feed unloading conveyor 9 can discharge feed through the discharge pipe 854.

[0080] In this embodiment, see Figure 10A first bearing seat is provided at the bottom of the feed pipe 842. A vertical impeller shaft 845 is rotatably mounted inside the first bearing seat. The upper end of the impeller shaft 845 extends upward through the bottom sidewall of the feed pipe 842 into the feed pipe 842. Multiple blades 846 are arranged circumferentially at the upper end of the impeller shaft 845, each blade 846 being a curved arc plate. A first pulley 847 is coaxially fixed at the lower end of the impeller shaft 845. A third motor 87 is fixedly mounted on the third bracket 81. A fourth pulley 853 is coaxially fixed on the output shaft of the third motor 87. The first pulley 847 and the second pulley 851 are connected and driven by a first transmission belt. The third pulley 852 and the fourth pulley 853 are connected and driven by a second transmission belt. The third motor 87 drives the fourth pulley 853 to rotate. The rotation of the fourth pulley 853 drives the third pulley 852 to rotate through the second transmission belt. The third pulley 852 and the second pulley 851 are coaxially fixed and rotate together. They can drive the first pulley 842 through the first transmission belt. The pulley 847 rotates, driving the impeller shaft 845 to rotate. During rotation, the impeller shaft 845 drives the blades 846 at its upper end to rotate circumferentially, centrifuging the material falling around the blades 846 and transferring it along the feed pipe 842 into the feed lift pipe 84. A first observation port 8221 and a second observation port 8222 are provided on the bin cover 822. The upper end of the spiral lift pipe 83 is located below the bin cover 822, and the upper sidewall of the spiral lift pipe 83... Multiple radially distributed angle steels 831 are arranged in the circumferential direction. One end of each angle steel 831 is welded and fixedly connected to the spiral lifting pipe 83, and the other end is suspended. The suspended end of each angle steel 831 is connected to the top of the silo cover 822 through the first screw 832. The spiral lifting pipe 83 is connected to the inner wall of the mixing silo 82 through the second screw 833. The first screw 832 and the second screw 833 facilitate the stable fixing of the spiral lifting pipe 83 in the middle position inside the mixing silo 82, so that the material is stably lifted and mixed.

[0081] In this embodiment, a camera and a searchlight are fixedly installed on the top of the cover 822 of the mixing bin 82 to monitor the mixing situation inside the mixing bin 82. Multiple cameras are installed without blind spots above the first conveyor 1, the four coarse feed feeders 2, the third conveyor 3, the feeding robot 6, and the starting position of the feeding trough 7 to monitor the working area in real time.

[0082] In this embodiment, the conductive cable is installed on the suspended frame above the feeding channel of the cattle shed, and the node control contact and node control switch are installed on the support set on the side wall of the first feed hopper. During the movement, the feeding robot 6 is powered by the conductive carbon brush through the node control contact and the conductive cable on the suspended frame.

[0083] In this embodiment, the start and stop position control of the feeding robot is controlled separately according to two task modes: feeding and waste material recycling. A rotary encoder is installed on the shaft end of the reduction motor of the feeding robot's walking wheel to measure the travel distance in real time (pulse counting). When the operator presses the "feeding start" button at a node, the controller loads a preset path (e.g., feeding trough start point → end point), and the feeding robot moves at a speed of 1.0 m / s. The encoder calculates the distance in real time. When approaching the target node, it automatically reduces its speed to 0.3 m / s. The sensor is triggered to contact the node contact point → an interrupt signal is generated → the controller completes the process within 50 ms. When the operator manually presses the "recycling start" button at the end node of the feeding trough → the controller switches to recycling mode, the hydraulic cylinder pushes out the scraper conveyor 64 to contact the bottom of the feeding trough, and it moves towards the start point at a speed of 0.1 m / s. It is positioned by the encoder pulse counting. After touching the start node, the scraper hydraulic cylinder drives the scraper conveyor 64 to reset.

[0084] The node control contacts are physically installed on the side wall supports of the hopper, located at the precise stopping points of the feeding robot, such as below the hopper or at the start / end of the feeding trough. Each key location corresponds to a unique contact. The node control switch and node control contacts are installed in the same area and managed by the control system, used to manually or automatically issue "start" or "go to next node" commands. Sensors on the feeding robot 6 are installed on the side of the feeding robot, specifically for physical contact or close-range sensing with the node control contacts. The PLC controller receives signals from the contacts, switches, encoders, and other sensors, processes the logic, and sends control commands to the brake control module system of the walking wheel geared motor. The distance traveled between nodes is mainly estimated by the geared motor encoder (which records motor revolutions / wheel revolutions). This is combined with the preset node control contacts to provide absolute position signals. The walking wheels are responsible for movement, and the geared motors of the walking wheels rely on the dynamic braking of the servo motors to stop precisely and quickly. The operator in the control room selects the target location (such as "hopper 2" or "feeding trough end") on the control panel, or the system automatically issues tasks according to the preset feeding plan. After receiving the target instruction, the controller plans the optimal path (node ​​sequence) and activates the feeding robot. When a node control switch (such as a "start" button) is pressed (manual or automatic signal), the controller sends a "forward" command to the drive motor and releases the brakes, causing the robot to begin moving along the track. The feeding robot draws power from conductive cables on the suspended frame using conductive carbon brushes, driving the geared motor. The motor encoder continuously operates, converting the number of motor rotations / wheel revolutions into a distance traveled signal, which is fed back to the controller. Based on a preset route map (including distances between nodes) and encoder feedback, the controller estimates the robot's approximate position in real time, determining when it will approach the next target node. When the controller determines, based on the distance estimated by the encoder, that the feeding robot is about to reach the target node (e.g., 1-2 meters away), it sends a deceleration command to the geared motor, significantly reducing the feeding robot's speed and putting it into a "crawling" state. This prepares the robot for precise positioning and rapid stopping, reducing impact and positioning errors.

[0085] In this embodiment, a protective shell is installed around the chassis 61, and a PLC controller is fixedly installed on the chassis 61. All electrical devices of the feeding robot are connected to the PLC controller through cables and start and stop in sequence. The control room remotely controls the PLC controller of the feeding robot to control the start and stop of each electrical device through wireless signals. The control room displays the equipment status, feeding progress and livestock feed intake in real time through a 3D visualization interface, and remotely controls the operation according to the actual situation on site.

[0086] As can be seen from the above technical solution, this utility model feeds the animal through the following steps:

[0087] 1. Roughage preparation: Roughage is prepared sequentially by four roughage feeders 2. Specifically, a loader adds alfalfa, corn stalks, rice straw, and hay to the chain conveyor 22 of each roughage feeder 2. The controller controls the chain conveyor 22 to transport the roughage longitudinally to the front of the two first spiral blades 24. The two first spiral blades 24 gather the larger roughage towards the middle, compress the volume, and then discharge it onto the first conveyor 1.

[0088] 2. Preparation of Concentrated Feed: Concentrated feed and other ingredients are added sequentially to the feed hopper 844. The third motor 87 is started by the controller, which drives the first pulley 847, the second pulley 851, and the third pulley 852 to rotate, which in turn drives the impeller shaft 845 to rotate. The rotation of the impeller shaft 845 centrifugally disperses the concentrated feed ingredients in the feed pipe 842 into the feed lifting pipe 84 of the mixing bin 82. At the same time, the rotation of the third pulley 852 drives the spiral lifting shaft 85 and the third spiral blade 86 to rotate, lifting and conveying the feed in the feed lifting pipe 84 at the bottom of the mixing bin 82 upwards. When a large amount of material accumulates at the bottom of the mixing bin 82, the material continues to be lifted and conveyed upwards along the spiral lifting pipe 83 to the top of the mixing bin 82 through the third spiral blade 86 on the spiral lifting shaft 85. Then it is discharged from the top of the spiral lifting pipe 83 and dispersed around the mixing bin 82, thus lifting and mixing the material inside the mixing bin 82.

[0089] 3. Roughage and concentrate conveying and mixing: The controller controls the first conveyor 1 to convey the roughage provided by the four roughage feeders 2 to the second conveyor 3. Then, the second conveyor 3 lifts and conveys the roughage to the first hopper 62 of the feeding robot 6. The mixing mechanism 621 inside the first hopper 62 pushes and spreads the roughage from bottom to top in a reciprocating cycle. During this period, multiple moving blades arranged at a 30° angle on the edge of the spiral blades interact with two fixed blades on the inner wall of the shell to cut and crush the roughage. When the roughage is crushed, the controller controls the two concentrate unloading conveyors 9 to convey the feed from the two concentrate mixing machines 8 to the concentrate feeding conveyor 4. The concentrate feeding conveyor 4 conveys the concentrate to the second conveyor 3. The second conveyor 3 adds the concentrate to the first hopper 62, and then mixes and stirs it in the first hopper 62 until it is uniform. Then, it can be fed. The entire operation is completed.

[0090] 4. Feeding roughage and concentrate: The controller controls the walking wheels 66 of the feeding robot 6 to move at a constant speed along the track 5 from the starting end to the end of the feeding trough 7. During the movement, the controller controls the first hydraulic cylinder 624 to drive its telescopic end to open the discharge gate 623, so that the discharge port 622 opens. The controller controls the agitator 6212 in the first hopper 62 to spirally agitate the feed to the discharge port 622. The feed is discharged onto the belt conveyor 65 through the discharge port 622. The belt conveyor 65 transports the feed laterally into the feeding trough 7. When the belt conveyor 65 on the feeding robot 6 moves to the end of the feeding trough 7, it stops moving. Then, the controller controls the feeding robot 6 to stop feeding. Then, the controller controls the walking wheels 66 of the feeding robot 6 to move at a constant speed along the track 5 from the end of the feeding trough 7 to the starting end. When the feeding robot 6 returns to the starting point, it stops moving.

[0091] 5. Feed Trough Leftover Material Recovery: After the livestock finish eating, the camera above the feed trough observes that they have finished. The controller controls the second hydraulic cylinder 6415 to drive the feed pipe 641 to rotate along the corresponding U-shaped seat 6413 on the positioning steel frame 6412, extending the lower end of the feed pipe 641 into the feed trough 7. Simultaneously, the rolling elements 6482 on the two wheel seats 6481 at the lower end of the feed pipe 641 are supported on the upper surface of the side plates of the feed trough 7, so that the two rolling elements 6482 roll in cooperation with the two side plates. The controller controls the start of the scraper conveyor 64, which drives the scraper 645 on the transmission chain 642 to scrape the leftover material from the feed inlet of the lower end of the feed pipe 641 into the feed pipe 641. The material is then inclined along the feed pipe 641 and conveyed to the leftover material discharge conveyor 647, which then transports the leftover material to the first silo. Within 62, simultaneously, the controller controls the walking wheels 66 of the feeding robot 6 to move at a constant speed along the track 5 from the starting end to the end of the feeding trough 7, causing the scraper conveyor 64 to collect the leftover material along the length of the feeding trough 7. After the scraper conveyor 64 moves to the end of the feeding trough 7, the leftover material collection is completed. The controller then controls the second hydraulic cylinder 6415 to drive the conveying pipe 641 to rotate along the corresponding U-shaped seat 6413 on the positioning steel frame 6412, turning the lower end of the conveying pipe 641 out of the feeding trough 7. Then, the controller controls the walking wheels 66 of the feeding robot 6 to move at a constant speed along the track 5 from the end of the feeding trough 7 to the starting end. After the feeding robot 6 returns to the starting point, it stops moving. Thus, the feed preparation, conveying, mixing, feeding, and leftover material collection for the livestock in the pasture are completed. The leftover material is collected by the scraper conveyor into the first silo 62 for mixing with new material for reuse.

[0092] By applying this invention to a ranch, a ranch with 10,000 head of livestock that previously required 18 people now only needs 7 people to monitor it, reducing labor costs by 60% and saving on labor intensity. Previously, equipment failure repairs took 12 hours, but now remote diagnosis can resolve the issue in 30 minutes, reducing downtime by 75% and waste rate by 15%.

[0093] Other embodiments of the present invention will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. The present invention is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope of the invention is indicated by the claims.

[0094] It should be understood that this utility model is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model.

Claims

1. An unattended central kitchen feeding system for ranches, comprising: The first conveyor (1) is horizontally arranged on the ground in a transverse direction; Multiple roughage feeders (2) are spaced apart on the ground on one side of the first conveyor (1) to feed various roughages onto the first conveyor (1); The second conveyor (3) is inclinedly arranged at the end of the first conveyor (1) for inclined lifting and conveying of materials; Concentrated feed conveyor (4); Track (5), which is horizontally arranged longitudinally at the end of the second conveyor (3); A feeding robot (6) is slidably mounted on the track (5); Feeding trough (7), the feeding trough (7) is arranged parallel to one side of the track (5), and a bracket is provided at the bottom of the feeding trough (7) to suspend and support the feeding trough; Multiple feed mixers (8) are arranged on the ground on one side of the second conveyor (3); Concentrated feed unloading conveyor (9); The discharge port of each of the feed mixers (8) is connected to the feed inlet of the feed unloading conveyor (9), the discharge end of each feed unloading conveyor (9) is connected to the feed inlet of the feed feeding conveyor (4), and the discharge end of the feed feeding conveyor (4) is connected to the feeding robot (6).

2. The unattended central kitchen feeding system for ranches according to claim 1, characterized in that, The roughage feeder (2) includes a first support (21), a chain conveyor (22), a roller (23), a first spiral blade (24), a half shaft (25), a first drive mechanism (26), and a protective cover (27). The chain conveyor (22) is mounted on the first support (21). Two vertical side plates (222) are fixedly mounted on the conveyor frames (221) on both sides of the chain conveyor (22). A vertical plate (223) is fixedly mounted on the front conveyor frame (221) of the chain conveyor (22). A horizontal roller (23) is mounted between the two side plates (222) at the rear end of the chain conveyor (22). The roller (23) is located on the chain conveyor. (22) Above, two half shafts are coaxially arranged at both ends of the roller (23). The two half shafts are rotatably connected to two first shaft seats corresponding to the two side plates (222). A first driving mechanism (26) for driving the half shaft to rotate is provided on the outer wall of one of the side plates (222). Two first spiral blades (24) are arranged from the middle to both sides on the side wall of the roller (23). A horizontal crossbeam (224) is arranged between the two side plates (222). The crossbeam (224) is located below the upper conveying chain (220) of the chain conveyor (22) and is arranged in a linear array along the conveying direction. A horizontal support plate (225) is arranged on each crossbeam (224).

3. The unattended central kitchen feeding system for ranches according to claim 1, characterized in that, The feeding robot (6) includes a chassis (61), a first hopper (62), a first mixing mechanism (63), a scraper conveyor (64), a belt conveyor (65), and wheels (66). The first hopper (62) is mounted on the chassis (61), and four sets of wheels (66) are mounted on the bottom of the chassis (61). A mixing mechanism (621) is installed inside the first hopper (62), and a second driving mechanism for driving the mixing mechanism (621) to mix the materials is installed at the bottom of the first hopper (62). A discharge port (622) is installed on the lower side wall of the first hopper (62). The discharge port (622) is provided with a discharge gate (623). The upper edge of the discharge gate (623) is connected to the side wall of the first silo (62) by a hinge. A first hydraulic cylinder (624) is provided above the discharge gate (623). The fixed end of the first hydraulic cylinder (624) is hinged to the first hinge seat provided on the side wall of the first silo (62). The telescopic end of the first hydraulic cylinder (624) is hinged to the second hinge seat provided on the side wall of the discharge gate (623). A horizontal belt conveyor (65) is provided longitudinally on the chassis (61) on one side of the discharge port (622).

4. The unattended central kitchen feeding system for ranches according to claim 3, characterized in that, The scraper conveyor (64) includes a conveying pipe (641), a drive chain (642), a head sprocket (643), a tail sprocket (644), a scraper (645), a tail drive shaft (646), a waste material discharge conveyor (647), a rolling support mechanism (648), and a head drive shaft (649). The conveying pipe (641) has a rectangular cross-section and is inclinedly arranged on one side of the first hopper (62). Two fixed seats (6411) are provided at the bottom of the conveying pipe (641). A positioning steel frame (6412) is provided on the chassis (61) below the conveying pipe (641). Each fixed seat (6411) is connected to the positioning steel frame (6412) by a connecting plate (6414). The U-shaped seat (6413) is connected to the corresponding fixed seat (6411) at one end, and the other end extends into the U-shaped seat (6413) and is hinged to the U-shaped seat (6413) by a pin. A second hydraulic cylinder (6415) is provided between the two fixed seats (6411). The fixed end of the second hydraulic cylinder (6415) is hinged to the third hinge seat provided on the positioning steel frame (6412), and the other end is hinged to the fourth hinge seat provided at the bottom of the conveying pipe (641). Two head sprockets (643) are provided on both sides of the lower end of the conveying pipe (641). The two head sprockets (643) are spaced apart on the head transmission. On the shaft (649), the two ends of the head drive shaft (649) are rotatably connected to the two side walls of the lower end of the feed pipe (641). Two tail sprockets (644) are arranged on both sides of the upper end of the feed pipe (641). The two tail sprockets (644) are spaced apart on the tail drive shaft (646). The two ends of the tail drive shaft (646) are rotatably connected to the two side walls of the upper end of the feed pipe (641). Two drive chains (642) are arranged on both sides of the feed pipe (641). Each drive chain (642) is connected to the corresponding head sprocket (643) and tail sprocket (644) on one side. Multiple scrapers (645) are arranged between the two drive chains (642). Two rolling support mechanisms (648) are symmetrically arranged on the two outer side walls of the lower end of the conveying pipe (641). Each rolling support mechanism (648) includes a wheel seat (6481) and a rolling body (6482) rotatably arranged on the wheel seat (6481). A horizontal residual material discharge conveyor (647) is arranged below the discharge port at the upper end of the conveying pipe (641). The residual material discharge conveyor (647) is fixedly connected to the conveying pipe (641). The discharge end of the residual material discharge conveyor (647) is located above the feeding port on one side of the first silo (62). The inlet of the residual material discharge conveyor (647) and the outlet of the conveying pipe (641) are sealed and connected by a dustproof shell (6471).

5. The unattended central kitchen feeding system for ranches according to claim 1, characterized in that, The concentrate feed mixer (8) includes a third support (81), a mixing bin (82), a spiral lifting pipe (83), a feed lifting pipe (84), a spiral lifting shaft (85), a third spiral blade (86), and a third motor (87). The mixing bin (82) is mounted on the third support (81). The lower end of the mixing bin (82) is configured as a conical bin wall (821). The first discharge port at the lower end of the conical bin wall (821) is connected to the feed lifting pipe (84). The lower end of the feed lifting pipe (84) is provided with... A first sealing plate (841) is placed, and a first feed port is provided on the lower side wall of the feed lifting pipe (84). The outer end of the first feed port is connected to a horizontal feed pipe (842). One end of the feed pipe (842) is sealed to the first feed port, and the other end is suspended and sealed by a second sealing plate (843). A feed hopper (844) is provided at the top of the feed pipe (842), and the second outlet of the feed hopper (844) is connected to the second feed port provided at the top of the feed pipe (842). A spiral lifting pipe (83) is coaxially arranged inside the mixing hopper (82). The upper end of the spiral lifting pipe (83) is connected to the hopper cover (822) of the mixing hopper (82). A spiral lifting shaft (85) is coaxially arranged inside the mixing hopper (82). The spiral lifting shaft (85) is sleeved inside the spiral lifting pipe (83) and the feed lifting pipe (84). The spiral lifting pipe (83) is located above the feed lifting pipe (84). The upper end of the spiral lifting shaft (85) is connected to the mixing hopper (82). The second shaft seat is rotatably connected to the cover (822) of the silo. The lower end of the spiral lifting shaft (85) passes through the first sealing plate (841) at the lower end of the feed lifting pipe (84) and is rotatably connected to the third shaft seat at the bottom of the first sealing plate (841). The lower end of the spiral lifting shaft (85) is coaxially provided with the second pulley (851) and the third pulley (852). The lower side wall of the conical silo wall (821) is provided with the third discharge port. The outer end of the third discharge port is connected to the discharge pipe (854).

6. A farm-use unattended central kitchen feeding system according to claim 5, characterized in that, A first bearing seat is provided at the bottom of the feed pipe (842), and a vertical impeller shaft (845) is rotatably arranged inside the first bearing seat. The upper end of the impeller shaft (845) extends upward through the bottom side wall of the feed pipe (842) into the feed pipe (842). Multiple blades (846) are arranged along the circumferential direction at the upper end of the impeller shaft (845). A first pulley (847) is coaxially arranged at the lower end of the impeller shaft (845). A third motor (87) is arranged on the third bracket (81). A fourth pulley (853) is coaxially arranged on the output shaft of the third motor (87). The first pulley (847) and the second pulley (851) are connected and driven by a first transmission belt. The third pulley (852) The fourth pulley (853) is connected to the second transmission belt for transmission. The silo cover (822) is provided with a first observation port (8221) and a second observation port (8222). The upper end of the spiral lifting pipe (83) is located below the silo cover (822). Multiple radially distributed angle steels (831) are provided on the upper side wall of the spiral lifting pipe (83) along the circumferential direction. One end of each angle steel (831) is welded and fixedly connected to the spiral lifting pipe (83), and the other end is suspended. The suspended end of each angle steel (831) is connected to the top of the silo cover (822) through a first screw (832). The spiral lifting pipe (83) is connected to the inner wall of the mixing silo (82) through a second screw (833).

7. A farm-use unattended central kitchen feeding system according to claim 4, characterized in that, A PLC controller is installed on the chassis (61).

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