Conveying system of feed transport vehicle and feed conveying method and device

Abstract

The invention discloses a conveying system of a feed transport vehicle and a feed conveying method and device. The conveying system of the feed transport vehicle comprises an intelligent frequency conversion controller, a permanent magnet synchronous motor, a speed reducer and an auger. Wherein the intelligent frequency conversion controller is connected with the permanent magnet synchronous motor, and the intelligent frequency conversion controller is used for supplying power to the permanent magnet synchronous motor and sending a motor driving signal to the permanent magnet synchronous motor so as to control the permanent magnet synchronous motor; the permanent magnet synchronous motor is connected with the speed reducer, and the speed reducer is connected with the auger; wherein the permanent magnet synchronous motor is used for driving the speed reducer based on the motor driving signal, so that the speed reducer drives the auger to convey feed. Compared with a hydraulic motor, the conveying system of the feed transport vehicle can remarkably improve the transmission efficiency, the permanent magnet synchronous motor uses electric energy, and compared with fuel oil consumed by an engine, the feed conveying cost can be reduced.

Description

TECHNICAL FIELD

[0001] The present application generally relates to the technical field of mechanical engineering. More particularly, the present application relates to a conveying system of a feed transport vehicle and a feed conveying method and device. BACKGROUND

[0002] The bulk feed vehicle is also called a bulk feed transport vehicle, which is mainly used for transporting bulk feed products or feed production raw grains from a feed factory to a livestock farm, a breeding farm and a feed processing user.

[0003] The conventional bulk feed vehicle generally drives a hydraulic system by using a transmission shaft of a chassis, so as to drive an auger by the hydraulic system, so as to realize feed transportation or conveying by using the auger. However, the transmission efficiency of the hydraulic system is low, the oil consumption is usually high, and the failure rate is high. Therefore, the cost of conveying feed by the conventional bulk feed vehicle is high, and the economic benefit is low.

[0004] Therefore, it is urgent to provide a conveying system of a feed transport vehicle and a feed conveying method and device, so as to improve the conveying efficiency of materials and reduce the conveying cost of materials. SUMMARY

[0005] In order to at least solve one or more technical problems as mentioned above, the present application provides a conveying system of a feed transport vehicle and a feed conveying method and device in multiple aspects.

[0006] In a first aspect, the present application provides a conveying system of a feed transport vehicle, comprising: an intelligent variable frequency controller, a permanent magnet synchronous motor, a speed reducer and an auger; wherein the intelligent variable frequency controller is connected with the permanent magnet synchronous motor, the intelligent variable frequency controller is used for supplying power to the permanent magnet synchronous motor and sending a motor driving signal to the permanent magnet synchronous motor to control the permanent magnet synchronous motor; the permanent magnet synchronous motor is connected with the speed reducer, and the speed reducer is connected with the auger; wherein the permanent magnet synchronous motor is used for driving the speed reducer based on the motor driving signal, so that the speed reducer drives the auger to convey feed.

[0007] In a second aspect, the present application provides a feed conveying method, comprising: supplying power to a permanent magnet synchronous motor by an intelligent variable frequency controller, and sending a motor driving signal to the permanent magnet synchronous motor to control the permanent magnet synchronous motor; driving the speed reducer by the permanent magnet synchronous motor based on the received motor driving signal, so that the speed reducer drives the auger to convey feed.

[0008] In a third aspect, the present application provides a feed conveying device, characterized in that comprising: a processor configured to execute program instructions; and a memory configured to store the program instructions, when the program instructions are loaded and executed by the processor, so that the device executes the method according to the second aspect.

[0009] Through the conveying system of the feed transport vehicle provided as above, the embodiments of the present application supply the permanent magnet synchronous motor with high efficiency through the intelligent frequency conversion controller, maintain the high efficiency operation state of the permanent magnet synchronous motor, and the permanent magnet synchronous motor can realize frequency conversion precise speed regulation, so as to accurately adjust the operation state of the auger, the permanent magnet synchronous motor drives the speed reducer with high efficiency, so that the speed reducer drives the auger to convey the feed with high efficiency, compared with the hydraulic motor, the transmission efficiency can be significantly improved, the permanent magnet synchronous motor uses electric energy, compared with the engine consuming fuel, the cost of conveying the feed can be reduced. BRIEF DESCRIPTION OF DRAWINGS

[0010] The above and other objects, features and advantages of the present application exemplary embodiments will be readily understood through reading the detailed description of the exemplary embodiments of the present application below in conjunction with the accompanying drawings. In the drawings, several embodiments of the present application are illustrated by way of example and not limitation, and like or corresponding reference numerals refer to like or corresponding parts throughout the several views, in which: Figure 1 An exemplary structural block diagram of the conveying system of the feed transport vehicle of some embodiments of the present application is shown; Figure 2 An exemplary structural diagram of the conveying system of some embodiments of the present application is shown; Figure 3 An exemplary structural diagram of the left view of the feed transport vehicle of some embodiments of the present application is shown; Figure 4 An exemplary structural diagram of the right view of the feed transport vehicle of some embodiments of the present application is shown; Figure 5 An exemplary flow chart of the feed conveying method of some embodiments of the present application is shown; Figure 6 An exemplary structural block diagram of the feed conveying device of the embodiments of the present application is shown. DETAILED DESCRIPTION

[0011] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are some of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0012] It should be understood that the terms "comprises" and "comprising" used in the specification and claims of this application are taken to specify the presence of stated features, integers, steps, or components but do not preclude the presence or addition of one or more other features, integers, steps, components, or groups thereof.

[0013] It should also be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. As used in this specification and the claims, the singular forms "a," "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "and / or," as used herein, refers to and encompasses any and all possible combinations of one or more of the associated listed items.

[0014] As used in this specification and claims, the terms "if' and "when" can each be interpreted to mean "when" or "if," depending on the context. Similarly, the phrase "if it is determined" or "if [a described condition or event] is detected" can each be interpreted to mean "if it is determined that," or "if [the described condition or event] is detected," depending on the context.

[0015] The detailed description of the application will be made with reference to the accompanying drawings.

[0016] Example application scenarios In a conventional bulk feed truck, a hydraulic device is usually used as a key component for driving or transmission. However, energy loss occurs due to friction and local resistance when oil flows through pipelines and valve ports in the hydraulic device, especially under high pressure or high flow conditions, which results in low transmission efficiency of the hydraulic device. The oil leakage caused by the gap or seal failure of the hydraulic pump, motor, valve and other elements in the hydraulic device will result in high cost and low transmission efficiency of the hydraulic device. The friction of moving parts (such as bearings and plungers) in the hydraulic device also consumes energy and results in low transmission efficiency of the hydraulic device.

[0017] In addition, particle contaminants can scratch the elements in the hydraulic device and block the valve ports. During the use of the hydraulic device, the filter element and oil in the hydraulic device need to be replaced regularly. Rubber seals between various elements in the hydraulic device are prone to hardening and failure at high temperatures, and also need to be replaced frequently. If oil leakage or transmission performance degradation occurs in the hydraulic system, professional equipment needs to be used for troubleshooting, resulting in high maintenance cost.

[0018] Example solutions Therefore, the application provides a conveying system of a feed transport vehicle, which can efficiently supply power for a permanent magnet synchronous motor through an intelligent variable frequency controller, maintain the efficient operation state of the permanent magnet synchronous motor, and realize variable frequency precise speed regulation of the permanent magnet synchronous motor, so as to accurately adjust the operation state of an auger, and efficiently drive a speed reducer of the permanent magnet synchronous motor, so that the speed reducer drives the auger to efficiently convey feed. Compared with a hydraulic motor, the conveying efficiency can be significantly improved, and the permanent magnet synchronous motor uses electric energy, so that the cost of conveying feed can be reduced compared with the consumption of fuel of an engine.

[0019] Figure 1 An exemplary structural block diagram of the conveying system of the feed transport vehicle is shown.

[0020] As shown in the figure, in the conveying system 100 of the feed transport vehicle, an intelligent variable frequency controller 110, a permanent magnet synchronous motor 120, a speed reducer 130 and an auger 140 are included; the intelligent variable frequency controller is connected with the permanent magnet synchronous motor, and the intelligent variable frequency controller is used for supplying power for the permanent magnet synchronous motor and sending a motor driving signal to the permanent magnet synchronous motor to control the permanent magnet synchronous motor; the permanent magnet synchronous motor is connected with the speed reducer, and the speed reducer is connected with the auger; wherein the permanent magnet synchronous motor is used to drive the speed reducer based on the motor driving signal, so that the speed reducer drives the auger to convey feed.

[0021] In some embodiments of the application, the "intelligent variable frequency controller" refers to a power electronic device integrating multiple functions such as inversion, transformation, frequency conversion and overload prevention. The "permanent magnet synchronous motor" refers to a synchronous motor using a permanent magnet (such as neodymium iron boron and other rare earth materials) to generate a rotor magnetic field, and the rotor speed is strictly synchronized with the current frequency of the stator winding. The permanent magnet synchronous motor is an alternating current motor working on the principle of electromagnetic synchronous rotation, and the rotor is excited by a permanent magnet. After the stator winding is connected to three-phase alternating current, a rotating magnetic field is generated, and the rotor permanent magnet rotates synchronously with the stator magnetic field. The "speed reducer" refers to a mechanical device that reduces the output speed of the motor and increases the output torque through gear, worm and other transmission mechanisms. In the embodiments of the application, the core function of the speed reducer is to match the characteristics of high speed and low torque of the permanent magnet synchronous motor with the requirement of low speed and high torque of the auger. The "auger" is a common name for a screw conveyor, which is named after the core component of the screw-shaped conveying auger (also known as "screw blade"). The auger is a mechanical device that uses the rotary motion of the screw blade to push and convey materials along the axial direction.

[0022] In some embodiments, the intelligent variable frequency controller is connected to the permanent magnet synchronous motor, and the intelligent variable frequency controller is used to power the permanent magnet synchronous motor. The intelligent variable frequency controller supports an input voltage range of 600-1000V direct current or 380V alternating current, and outputs stable 380V alternating current. The controller can be directly connected to a new energy chassis high-voltage system or an industrial alternating current 380V power consumption device, and provides power driving for the high-efficiency permanent magnet synchronous motor.

[0023] The permanent magnet synchronous motor described above has a permanent magnet, which does not require excitation current and has rotor copper loss, and has high efficiency. The permanent magnet synchronous motor supports field-oriented control (FOC) and direct torque control (DTC), can achieve high dynamic response, and can also make the output torque fluctuate within a small range, avoid vibration and noise caused by periodic torque changes, and ensure smooth operation, that is, low torque ripple.

[0024] In some embodiments, the intelligent variable frequency controller sends a motor driving signal to the permanent magnet synchronous motor to control the permanent magnet synchronous motor, so as to adjust the voltage and frequency input to the permanent magnet synchronous motor, change the rotating speed of the stator rotating magnetic field, and then accurately control the rotating speed of the rotor. For example, the field-oriented control (FOC) and direct torque control (DTC) algorithms can decouple torque and magnetic field components in real time, achieve millisecond-level dynamic response, and have a rotating speed accuracy of ±0.1%. The rotor in the permanent magnet synchronous motor uses lightweight permanent magnets (such as neodymium iron boron), which can reduce mechanical inertia and improve the response speed of acceleration and deceleration. Therefore, the permanent magnet synchronous motor can achieve variable frequency precise speed regulation.

[0025] In some embodiments of the present application, the housing of the permanent magnet synchronous motor adopts a fully sealed structure, and has a waterproof coating on the outside to prevent water vapor and dust from entering. The stator winding of the permanent magnet synchronous motor is impregnated with epoxy resin, and the rotor permanent magnet is plated with nickel or passivated on the surface of the neodymium iron boron, to resist humid, salt spray, and other corrosive environments. The brushes and commutators are cancelled to avoid sealing failure caused by mechanical contact, and the waterproof reliability is fundamentally improved. Therefore, the permanent magnet synchronous motor has the characteristics of high waterproofness.

[0026] In some embodiments, the rare earth permanent magnet (such as neodymium iron boron) of the permanent magnet synchronous motor provides a strong magnetic field, so that the permanent magnet synchronous motor outputs greater torque and power under the same volume. For example, the power of the permanent magnet synchronous motor can be more than 300kW, which is much higher than that of a traditional asynchronous motor.

[0027] Permanent magnet synchronous motors (PMSMs) typically employ liquid cooling (such as water-cooled jackets) or forced air cooling, combined with thermal management algorithms (such as temperature feedback current regulation) to ensure continuous operation under high-temperature conditions, reduce energy transmission losses, and improve system efficiency. Therefore, PMSMs increase output power and improve system efficiency.

[0028] In some embodiments, permanent magnet synchronous motors (PMSMs) do not contain easily worn parts such as brushes and slip rings; only periodic bearing inspections are required. This eliminates mechanical wear components, extending service life and reducing maintenance costs. PMSMs utilize highly reliable materials (such as ceramic bearings and high-strength alloy housings) to reduce mechanical fatigue. The stator insulation material is also high-temperature resistant (H-class and above), further delaying aging. Therefore, PMSMs are characterized by long service life and low maintenance costs.

[0029] In some embodiments, the permanent magnet synchronous motor also incorporates sensors (such as temperature sensors and vibration sensors) to monitor its operating status in real time and provide early warnings of faults through predictive maintenance algorithms, thereby further reducing maintenance requirements.

[0030] In some embodiments of this application, the reducer converts the high-speed, low-torque output of the permanent magnet synchronous motor into low-speed, high-torque output through gear meshing or worm gear transmission, thereby meeting the transmission requirements of the auger. The reducer can reduce the impact of the auger's inertia on the permanent magnet synchronous motor, thereby improving the system response speed and control accuracy. The reducer can also absorb the impact or vibration of the auger, thereby preventing the permanent magnet synchronous motor from directly bearing overload or sudden force and extending the life of the permanent magnet synchronous motor.

[0031] It should be noted that the types of speed reducers include, but are not limited to, gear reducers, worm gear reducers, cycloidal pinwheel reducers, and harmonic reducers. The aforementioned gear reducers include, but are not limited to, cylindrical gear reducers, planetary gear reducers, and helical gear reducers.

[0032] In the embodiments provided in this application, a permanent magnet synchronous motor is used to drive a reducer based on a motor drive signal sent by an intelligent frequency converter, so that the reducer drives an auger to convey feed. This enables precise feed delivery, effectively avoids motor overload, and protects the motor. It also reduces maintenance time and costs, and extends the service life of the bulk feed truck.

[0033] In some embodiments, the auger includes at least one of a bottom auger, a vertical auger, and an upper auger. The term "bottom auger" refers to one or more augers located on the chassis of a feed transport vehicle, used to convey feed at the bottom of the vehicle. The bottom auger has an inlet and an outlet, which may or may not be located on the same horizontal plane, with a height difference between them.

[0034] In some embodiments, the bottom auger can be located at the bottom of the feed tank of the feed transport vehicle. Here, "feed tank" refers to the tank on the feed transport vehicle used for storing feed. The inlet of the bottom auger is connected to the feed tank, and the bottom auger is used to transfer the feed inside the feed tank. The bottom auger in this embodiment can be designed with a low rotation speed to ensure smooth feed delivery.

[0035] The "vertical auger" mentioned above refers to one or more augers placed vertically on a feed truck, used to transfer feed from the bottom to the top of the truck. A vertical auger has an inlet and an outlet; the inlet is located at the bottom of the truck, and the outlet is located at the top. The vertical auger can be placed vertically on the truck, meaning it is perpendicular to the ground, or it can be placed at an acute angle to the horizontal ground. The vertical auger employs a high-speed design, relying on centrifugal force and friction to overcome the weight of the feed, thus transferring it from bottom to top.

[0036] In some embodiments, the vertical auger adopts a rotatable design. Specifically, the vertical auger can be connected to the cargo compartment of the feed transport vehicle via a hinge, allowing the user to adjust the angle between the vertical auger and the horizontal ground according to specific needs.

[0037] In some embodiments, the outer side of the vertical auger has a sliding bushing and a rotation module to support rotational adjustment of the direction or orientation of the vertical auger. Those skilled in the art will understand that the angle and / or orientation of the vertical auger can be self-adjusted, and no limitation is made herein.

[0038] In some embodiments of this application, the discharge port of the bottom auger is connected to the inlet of the vertical auger. The bottom auger is used to transport feed from the feed tank to the inlet of the vertical auger, and the vertical auger is used to transport feed from the inlet of the vertical auger to the discharge port of the vertical auger.

[0039] The "auger" mentioned above refers to one or more augers located on top of a feed truck. The auger is used to transfer feed across the top of the truck and deliver it to a designated location. This "designated location" refers to the target location where the feed needs to be transported, such as a feeding trough or storage bin.

[0040] In some embodiments, the upper auger is a telescopic structure, and its rotation angle, orientation, or height can be adjusted automatically. The upper auger is also equipped with a discharge pipe and a flexible protective cover to prevent clogging or contamination. The upper auger has an inlet and an outlet, with the inlet connected to the outlet of the vertical auger. The upper auger is used to transport feed from the outlet of the vertical auger to the outlet of the upper auger, thus delivering the feed to a designated location.

[0041] It should be noted that the bottom auger, vertical auger, and top auger in the embodiments of this application can be three different augers, or they can be three different parts of the same auger. In other words, the bottom auger, vertical auger, and top auger can be set up separately or as a whole.

[0042] In some embodiments of this application, the permanent magnet synchronous motor includes at least one of a bottom auger permanent magnet synchronous motor, a vertical auger permanent magnet synchronous motor, and an upper auger permanent magnet synchronous motor. The reducer includes at least one of a bottom auger reducer, a vertical auger reducer, and an upper auger reducer.

[0043] The "bottom auger reducer" mentioned above refers to one or more reducers connected to and used to drive the bottom auger. The bottom auger reducer is used to drive the bottom auger so that it can transport feed.

[0044] The "vertical auger reducer" mentioned above refers to one or more reducers connected to and used to drive the vertical auger. The vertical auger reducer is used to drive the vertical auger so that it can transport feed.

[0045] The "auger reducer" mentioned above refers to one or more reducers connected to and used to drive the auger. The auger reducer is used to enable the auger to convey feed.

[0046] The "bottom auger permanent magnet synchronous motor" mentioned above refers to one or more permanent magnet synchronous motors that indirectly drive the bottom auger through a bottom auger reducer. After receiving the motor drive signal from the intelligent frequency converter, the motor shaft of the bottom auger permanent magnet synchronous motor begins to rotate, thereby driving the bottom auger reducer. The bottom auger reducer is used to reduce the output speed of the bottom auger permanent magnet synchronous motor while increasing the output torque to meet the transportation requirements of the bottom auger.

[0047] The "vertical auger permanent magnet synchronous motor" mentioned above refers to one or more permanent magnet synchronous motors that indirectly drive a vertical auger through a vertical auger reducer. After receiving the motor drive signal from the intelligent frequency converter, the motor shaft of the vertical auger permanent magnet synchronous motor begins to rotate, thereby driving the vertical auger reducer. The vertical auger reducer is used to reduce the output speed of the vertical auger permanent magnet synchronous motor while increasing the output torque to meet the transportation requirements of the vertical auger.

[0048] The "screwdriver permanent magnet synchronous motor" mentioned above refers to one or more permanent magnet synchronous motors that indirectly drive the screwdriver through a screwdriver reducer. After receiving the motor drive signal from the intelligent frequency converter, the motor shaft of the vertical screwdriver permanent magnet synchronous motor begins to rotate, thereby driving the screwdriver reducer. The screwdriver reducer is used to reduce the output speed of the screwdriver permanent magnet synchronous motor while increasing the output torque to meet the conveying requirements of the screwdriver.

[0049] Figure 2 An exemplary structural diagram of a transmission system according to some embodiments of this application is shown.

[0050] As shown in the figure, the conveying system 200 includes an intelligent frequency converter 210, a bottom auger permanent magnet synchronous motor 221, a vertical auger permanent magnet synchronous motor 222, an upper auger permanent magnet synchronous motor 223, a bottom auger reducer 231, a vertical auger reducer 232, an upper auger reducer 233, a bottom auger 241, a vertical auger 242, and an upper auger 243.

[0051] In the embodiments of this application, the bottom auger permanent magnet synchronous motor 221 is connected to the bottom auger reducer 231, the vertical auger permanent magnet synchronous motor 222 is connected to the vertical auger reducer 232, the upper auger permanent magnet synchronous motor 223 is connected to the upper auger reducer 233, the bottom auger permanent magnet synchronous motor 221 and the bottom auger reducer 231 are located at one end of the bottom auger 241, the vertical auger permanent magnet synchronous motor 222 and the vertical auger reducer 232 are located at the lower end of the vertical auger 242, and the upper auger permanent magnet synchronous motor 223 and the upper auger reducer 233 are located at one end of the upper auger 243.

[0052] The bottom auger 241 is located below the upper auger 243. Both the bottom auger 241 and the upper auger 243 have one end connected to the vertical auger 242. The bottom auger permanent magnet synchronous motor 221 and the bottom auger reducer 231 are located at the end of the bottom auger 241 away from the vertical auger 242; the upper auger permanent magnet synchronous motor 223 and the upper auger reducer 233 are located at the end of the upper auger 243 close to the vertical auger 242.

[0053] In some embodiments of this application, the permanent magnet synchronous motor is connected to the reducer via a key. Here, a "key" is a mechanical connector used to achieve circumferential fixation and torque transmission between the motor's rotating shaft and the reducer's input shaft.

[0054] Figure 3 This invention provides a schematic diagram of the structure of a feed transport vehicle according to some embodiments of the present application, showing a left view. Figure 4 A structural schematic diagram of a feed transport vehicle according to some embodiments of this application is shown in the right view.

[0055] As shown in the diagram, the bottom auger is located below the cargo compartment of the feed transport vehicle. The bottom auger permanent magnet synchronous motor and the bottom auger reducer are connected, both located at the end of the bottom auger near the front of the vehicle. The vertical auger is located at the rear of the cargo compartment, with its permanent magnet synchronous motor and reducer connected, both located above the vertical auger and on the right side of the cargo compartment. The upper auger is located above the cargo compartment, with its permanent magnet synchronous motor and reducer connected, both located at the end of the upper auger near the rear of the cargo compartment and on the left side of the cargo compartment. The feed transport vehicle also includes an energy-saving module located on the lower left side of the cargo compartment.

[0056] The energy-saving module mentioned above refers to a solution for optimizing energy utilization and reducing ineffective energy consumption. In some embodiments, the energy-saving module includes a kinetic energy recovery module, which converts the extra kinetic energy of the feed transport vehicle into electrical energy via a motor and stores it in a battery or supercapacitor when the feed transport vehicle decelerates or goes downhill, for subsequent driving use.

[0057] In some embodiments, the energy-saving module further includes a vibration energy recovery module, which is used to convert the mechanical vibration of the vehicle during driving into electrical energy through a piezoelectric device or an electromagnetic induction device to supplement the power supply of the vehicle power supply or the power supply of the transmission system.

[0058] In some embodiments, the parallel key can be a rectangular metal strip (e.g., a steel strip) with a rectangular cross-section, installed in the keyway between the motor's rotating shaft and the input shaft hole of the reducer. The parallel key, through the compression between its side and the keyway of the reducer's input shaft hole, transmits the rotational force (torque) of the permanent magnet synchronous motor to the reducer, preventing relative rotation between the motor's rotating shaft and the reducer's input shaft. The parallel key is a weak point in the mechanical transmission; its shear strength must be lower than that of the motor's rotating shaft and the reducer's input shaft. In case of overload, the parallel key will fail first to protect the core components.

[0059] In some embodiments of this application, the intelligent frequency converter is connected to the bottom auger permanent magnet synchronous motor, the vertical auger permanent magnet synchronous motor, and the upper auger permanent magnet synchronous motor respectively via power lines, and is also used to adjust the operating parameters of the bottom auger permanent magnet synchronous motor, the vertical auger permanent magnet synchronous motor, and the upper auger permanent magnet synchronous motor.

[0060] In some embodiments, the intelligent frequency converter supplies power to the bottom auger permanent magnet synchronous motor, the vertical auger permanent magnet synchronous motor, and the top auger permanent magnet synchronous motor via power lines. The intelligent frequency converter is also used to send motor drive signals to the bottom auger permanent magnet synchronous motor, the vertical auger permanent magnet synchronous motor, and the top auger permanent magnet synchronous motor. The bottom auger permanent magnet synchronous motor, the vertical auger permanent magnet synchronous motor, and the top auger permanent magnet synchronous motor operate according to their respective received motor drive signals, thereby controlling the operating status of the bottom auger permanent magnet synchronous motor, the vertical auger permanent magnet synchronous motor, and the top auger permanent magnet synchronous motor.

[0061] In some embodiments, the operating parameters include at least one of the following: speed, torque, operating current, and operating frequency of the permanent magnet synchronous motor. Therefore, the intelligent frequency converter can control the speed, torque, operating current, and operating frequency of the permanent magnet synchronous motor (including bottom auger permanent magnet synchronous motors, vertical auger permanent magnet synchronous motors, and top auger permanent magnet synchronous motors).

[0062] In some embodiments of this application, the permanent magnet synchronous motor is also used to feed back the speed, operating current and operating frequency of the permanent magnet synchronous motor to the intelligent frequency converter; the intelligent frequency converter is also used to change the output frequency based on the feedback speed, operating current and operating frequency, so as to change the speed and torque of the permanent magnet synchronous motor.

[0063] The permanent magnet synchronous motor (PMSM) can also feed back its current speed, operating current, and operating frequency to the intelligent frequency converter. Based on this feedback, the intelligent frequency converter adjusts its output frequency and uses an adaptive algorithm to make corresponding adjustments to the PMSM, thereby ensuring the motor operates within its high-efficiency range. This achieves efficient, precise, and reliable operation of the PMSM. For example, if the PMSM operates efficiently within 20% to 50% of its load range, the intelligent frequency converter will control the load range of the PMSM to remain within that range.

[0064] Specifically, the position and transpose of the rotor in the permanent magnet synchronous motor are detected by encoders or Hall effect sensors, converted into electrical signals, and fed back to the intelligent frequency converter. Current sensors are used to measure the stator current in the permanent magnet synchronous motor, which is then used to calculate the torque and excitation components.

[0065] The intelligent frequency converter decomposes the feedback current, generates voltage regulation commands corresponding to the decomposed current through a regulator, and then outputs three-phase ignition after inverse conversion, thereby regulating the torque and speed of the permanent magnet synchronous motor. The intelligent frequency converter adjusts the current based on the speed error, thereby changing the electromagnetic torque and altering the fundamental frequency output by the intelligent frequency converter to directly control the operating frequency of the permanent magnet synchronous motor.

[0066] If a sudden load change (such as a sudden increase in current) is detected, the intelligent frequency converter automatically reduces the output frequency to avoid overcurrent, while adjusting the voltage amplitude to maintain constant magnetic flux.

[0067] It should be noted that the intelligent frequency converter can be connected as a single device to the bottom auger permanent magnet synchronous motor, the vertical auger permanent magnet synchronous motor, and the top auger permanent magnet synchronous motor, or three or more intelligent frequency converters can be set up and connected to the bottom auger permanent magnet synchronous motor, the vertical auger permanent magnet synchronous motor, and the top auger permanent magnet synchronous motor respectively.

[0068] As described in the above embodiments, the intelligent frequency converter can adjust the operating state of the permanent magnet synchronous motor in real time based on feedback operating parameters to achieve precise control of the permanent magnet synchronous motor, thereby precisely driving the reducer, which in turn precisely drives the auger, achieving precise feed transfer. The intelligent frequency converter can also adjust the operating state of the permanent magnet synchronous motor in real time to avoid energy waste under light loads, thus improving transmission efficiency. For example, the speed of the permanent magnet synchronous motor can be adjusted according to the hopper pressure to prevent feed blockage.

[0069] The intelligent frequency converter can also limit the maximum output through feedback operating current, thereby preventing damage to the permanent magnet synchronous motor. The intelligent frequency converter monitors the operating frequency and speed of the permanent magnet synchronous motor in real time, avoiding sudden changes that could cause loss of synchronization and shutdown.

[0070] In some embodiments of this application, the motor rotation shaft of the permanent magnet synchronous motor is connected to the reducer. The permanent magnet synchronous motor is also used to control the motor rotation shaft of the permanent magnet synchronous motor to drive the reducer based on the received motor drive signal. The reducer is also used to control the speed of the auger to be lower than the speed of the motor rotation shaft and to control the torque of the auger to be greater than the torque of the motor rotation shaft.

[0071] The permanent magnet synchronous motor (PMSM) controls the rotation of its motor shaft based on the received motor drive signal, thereby driving the reducer through connecting components such as a key. During operation, the reducer controls the auger's speed, ensuring it is lower than the speed of the PSM's motor shaft. This results in the auger's torque being greater than the motor shaft's torque, thus increasing the overall torque. Through this reducer conversion, the auger can operate at low speed and high torque to overcome the resistance encountered during feed transport.

[0072] The permanent magnet synchronous motor indirectly drives the auger through a reducer. The auger's operating status can also be fed back to the permanent magnet synchronous motor, which in turn feeds back its current operating status to the intelligent frequency converter. This allows the intelligent frequency converter to dynamically adjust the permanent magnet synchronous motor in real time, ensuring stable auger operation and preventing blockages. This also allows for precise matching of the auger's needs for conveying different types of feed, achieving efficient transmission, improving transmission efficiency, and saving energy.

[0073] This application also provides a method for delivering feed. Figure 5 An exemplary flowchart of a feed delivery method according to some embodiments of this application is shown.

[0074] As shown in the figure, in step S510, the permanent magnet synchronous motor is powered by the intelligent frequency converter and a motor drive signal is sent to the permanent magnet synchronous motor to control the permanent magnet synchronous motor; in step S520, the permanent magnet synchronous motor drives the reducer based on the received motor drive signal, so that the reducer drives the auger to convey feed.

[0075] It should be noted that the feed conveying method provided in this application embodiment is implemented based on the conveying system described in the foregoing embodiments. This feed conveying method can utilize the function or role of the conveying system described in the foregoing embodiments to achieve the corresponding steps, which will not be elaborated upon here. It can be understood that the feed conveying method is a specific step using the aforementioned conveying device 100; therefore, the preceding text, in conjunction with... Figures 1-4 The described features can be applied similarly here.

[0076] The feed conveying method provided in this application embodiment uses an intelligent frequency converter to efficiently power a permanent magnet synchronous motor, maintaining the motor in a high-efficiency operating state. The permanent magnet synchronous motor can achieve precise speed regulation via frequency conversion, thereby accurately adjusting the operating state of the auger. The permanent magnet synchronous motor efficiently drives a reducer, which in turn drives the auger to efficiently convey feed. Compared to a hydraulic motor, this method significantly improves transmission efficiency. The permanent magnet synchronous motor uses electrical energy, which reduces the cost of conveying feed compared to an engine consuming fuel.

[0077] This application also provides a feed conveying device. Figure 6 An exemplary structural block diagram of a feed conveying device according to an embodiment of this application is shown.

[0078] As shown in the figure, the feed conveying device 600 includes a processor 610 and a memory 620.

[0079] In the embodiments disclosed herein, processor 610 is configured to execute program instructions. Memory 620 is configured to store program instructions, which, when loaded and executed by processor 610, cause feed conveying device 600 to load and execute the aforementioned feed conveying method.

[0080] While numerous embodiments of this application have been shown and described herein, it will be apparent to those skilled in the art that such embodiments are provided by way of example only. Many modifications, alterations, and alternatives will arise for those skilled in the art without departing from the spirit and intent of this application. It should be understood that various alternatives to the embodiments of this application described herein may be employed in the practice of this application. The appended claims are intended to define the scope of protection of this application and therefore cover equivalents or alternatives within the scope of these claims.

Claims

1. A conveying system for a feed transport vehicle, characterized in that, include: Intelligent frequency converter, permanent magnet synchronous motor, reducer and auger; The intelligent frequency converter is connected to the permanent magnet synchronous motor. The intelligent frequency converter is used to supply power to the permanent magnet synchronous motor and send motor drive signals to the permanent magnet synchronous motor to control the permanent magnet synchronous motor. The permanent magnet synchronous motor is connected to the reducer, and the reducer is connected to the auger; The permanent magnet synchronous motor is used to drive the reducer based on the motor drive signal, so that the reducer drives the auger to convey feed.

2. The transmission system according to claim 1, characterized in that, The auger includes at least one of a bottom auger, a vertical auger, and an upper auger.

3. The feed transport vehicle conveying system according to claim 2, characterized in that, The permanent magnet synchronous motor includes at least one of the following: a bottom auger permanent magnet synchronous motor, a vertical auger permanent magnet synchronous motor, and an upper auger permanent magnet synchronous motor.

4. The transmission system according to claim 1, characterized in that, The permanent magnet synchronous motor is connected to the reducer via a key.

5. The transmission system according to claim 3, characterized in that, The intelligent frequency converter is connected to the bottom auger permanent magnet synchronous motor, the vertical auger permanent magnet synchronous motor, and the upper auger permanent magnet synchronous motor via power lines, and is also used to adjust the operating parameters of the bottom auger permanent magnet synchronous motor, the vertical auger permanent magnet synchronous motor, and the upper auger permanent magnet synchronous motor.

6. The transmission system according to claim 5, characterized in that, The operating parameters include at least one of the following: the speed, torque, operating current, and operating frequency of the permanent magnet synchronous motor.

7. The transmission system according to claim 5 or 6, characterized in that, The permanent magnet synchronous motor is also used to feed back the speed, operating current and operating frequency of the permanent magnet synchronous motor to the intelligent frequency converter; The intelligent frequency converter is also used to change the output frequency based on the feedback of the rotational speed, the operating current and the operating frequency, so as to change the rotational speed and torque of the permanent magnet synchronous motor.

8. The transmission system according to claim 1, characterized in that, The motor rotation shaft of the permanent magnet synchronous motor is connected to the reducer. The permanent magnet synchronous motor is also used to control the motor rotation shaft of the permanent magnet synchronous motor based on the received motor drive signal, so as to drive the reducer. The speed reducer is also used to control the rotational speed of the auger to be lower than the rotational speed of the motor shaft, and to control the torque of the auger to be greater than the torque of the motor shaft.

9. A feed delivery method, characterized in that, include: The permanent magnet synchronous motor is powered by an intelligent frequency converter, and motor drive signals are sent to the permanent magnet synchronous motor to control it. The permanent magnet synchronous motor drives the reducer based on the received motor drive signal, so that the reducer drives the auger to convey feed.

10. A feed conveying device, characterized in that, include: A processor, configured to execute program instructions; as well as A memory configured to store the program instructions, which, when loaded and executed by the processor, cause the apparatus to perform the method according to claim 9.

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