515 results about "Variable-frequency drive" patented technology

The variable-frequency heat recovery system comprises a compressor unit, three heat exchangers, a variable-frequency driving module and a liquid storage device, the compressor unit can be connected with any two heat exchangers to form a refrigerant circulation loop, and an inlet pipe of the liquid storage device is connected to the outlet side of a condenser of the refrigerant circulation loop; the variable frequency driving module is provided with a heat dissipation pipeline, and the heat dissipation pipeline is connected with an inlet pipe of the liquid storage device in series so that refrigerants conveyed to the liquid storage device can pass through the heat dissipation pipeline. According to the heat recovery system, the pipeline connecting structure in the system is designed, the refrigerant before throttling is adopted to cool the variable frequency driving module, the cooling effect of the variable frequency driving module in different modes is ensured, and the reliability of the heat recovery system is improved.

The invention discloses a variable frequency driving device energy recovery control system based on direct power supply of a high-voltage power grid, and relates to the technical field of electrical transmission and energy recovery control. Updating the power grid impedance model in real time by using a complex impedance calculation method; load operation state parameters are dynamically adjusted in combination with motor end output power, rotating speed change and torque calculation; according to the method, regenerative energy is accurately calculated, a feedback path is adjusted according to voltage fluctuation and frequency deviation of a power grid, a feedback current fluctuation ratio and a power factor are monitored, a feedback path conduction proportion is optimized in real time, when the current is unstable or the power factor is abnormal, a suboptimal path is automatically switched, and continuous and stable operation of a system is guaranteed; according to the invention, the energy feedback efficiency and the power grid compatibility of the high-voltage power grid variable-frequency driving device are effectively improved, and the method is suitable for energy feedback application of a high-power motor driving system.

The invention relates to the technical field of motor fault diagnosis, in particular to a fault diagnosis method of a drilling machine variable frequency driving motor based on IMSOA-MCNN-BIGRU, and the method comprises the steps: collecting the current data of an experiment platform motor, and adding interference to simulate the data of a real drilling machine driving motor; a population initialization strategy of an SOA algorithm is improved, opposite-reverse learning is introduced in an iteration process, and an adaptive worst resampling mechanism after stagnation monitoring is added; the size of a convolution kernel, the size of a hidden layer, an initial learning rate and L2 regularization intensity of the MCNN-BIGRU model are optimized based on IMSOA, and optimized parameters are endowed to the MCNN-BIGRU model again so as to construct an IMSOA-MCNN-BIGRU classification model; and inputting the current data into which the interference is added into the IMSOA-MCNN-BIGRU classification model to obtain a diagnosis result. According to the method, the MCNN and the BIGRU are combined and complemented, the characterization capability and the fault judgment precision of complex non-stationary signals are improved, the MCNN-BIGRU model is optimized by using the improved sea gull optimization algorithm, and the performance of the model is improved.

The invention discloses an energy-saving and consumption-reducing control method and system for a multi-stage variable frequency driven underground belt conveyor, and the method comprises the steps: obtaining coal flow data and conveying belt operation speed data according to a coal flow weight signal and an operation speed signal, and carrying out the filtering processing; abstracting and constructing a type-2 fuzzy set of the input parameters; and starting the belt conveyor, and performing multi-stage accurate control on the belt conveyor in combination with the two-degree-of-freedom PID and the type-II fuzzy set. According to the system, a coal flow monitoring sensor is installed on a belt conveyor; the speed sensor is mounted on the driving roller; the composite frequency conversion unit comprises a main frequency conversion unit and auxiliary frequency conversion units I and II, the main frequency conversion unit comprises a main frequency converter and a main motor which are connected, and each auxiliary frequency conversion unit comprises an auxiliary frequency converter and an auxiliary motor which are connected; the controller is connected with the coal flow monitoring sensor, the speed sensor, the composite frequency conversion unit and the human-computer interaction interface. According to the method and the system, multi-stage accurate control on the running speed of the belt conveyor can be realized, and the energy-saving effect is ideal.

The invention relates to the technical field of general control systems, in particular to a water chilling unit energy-saving control method and system.The method comprises the steps that the machining process of a numerical control machine tool is equally divided into a plurality of monitoring time periods, and the demand degree of a water chilling unit in the machining process of the numerical control machine tool in the monitoring time periods is determined to screen out a target monitoring time period; energy consumption of the water chilling unit in the target monitoring time period is determined in combination with the time interval from the moment after the cutting temperature rises to the moment when the rotating speed of the compressor changes, and then the cooling effect of the water chilling unit in the target monitoring time period is determined in combination with rising changes of the cutting temperature and the environment temperature. And determining a regulation and control coefficient of the variable frequency driving control system in the target monitoring time period, and regulating and controlling the running speed of a compressor of the water chilling unit. The regulation and control coefficient for energy-saving control of the water chilling unit in the frequency conversion control system is obtained, and the operation speed of the compressor of the water chilling unit is regulated and controlled, so that the purpose of energy-saving control of the water chilling unit is achieved.

The invention discloses an intelligent variable-frequency tensioning device and a control method. The intelligent variable-frequency tensioning device comprises six units including a multi-modal data sensing and interaction integration unit and a self-adaptive variable-frequency driving execution regulation and control unit. The multi-modal data sensing and interaction integration unit collects tension, displacement and speed signals of operation of the tensioning device, the hierarchical parameter optimization processing center performs feature extraction and primary processing on data, and the intelligent algorithm collaborative decision module fuses an optimized PID control algorithm and an RBF neural network model to generate a control strategy. A motor is driven by the self-adaptive variable frequency driving execution regulation and control unit, the mechanical structure dynamic adjustment linkage unit is driven to adjust a tensioning part, and the state monitoring and feedback correction unit monitors in real time and feeds back data for strategy and parameter correction. According to the device and method, intelligent frequency conversion control of the tensioning device is achieved, control precision and system stability are effectively improved, and complex working condition requirements are met.

The invention relates to the technical field of automatic packaging equipment, and discloses a cooperative control system for a filling electric cylinder and an adjustable stirring cylinder. The system comprises a filling electric cylinder module, a weighing measurement module, an adjustable stirring cylinder module and a cooperative controller module. The filling electric cylinder module executes the filling action and feeds back the position speed; the weighing measurement module collects the material weight of the container in real time and converts the material weight into liquid level height; the adjustable stirring cylinder module stirs materials through variable frequency driving and replaceable paddles; and the cooperative controller module receives real-time data of each module and SPC historical data, analyzes and generates a cooperative control instruction, and dynamically optimizes filling and stirring parameters. By means of modular integration and data closed-loop control, high-precision and self-adaptive filling is achieved, the problems that traditional equipment is difficult to adjust, insufficient in precision, poor in material adaptability and lack of intelligent feedback are solved, and the high-precision self-adaptive filling device is suitable for occasions with high requirements for filling precision and flexibility in the industries of food, medicine and the like.

The invention belongs to the technical field of water pumps, and particularly relates to a variable-frequency submersible pump water shortage detection method which comprises the following steps: S1, initializing a single chip microcomputer, and setting no-load power PS and a temperature change threshold TS; s2, processing water pump driving and other functional processes; s3, the temperature Ti, the voltage Ui and the current Ii are detected regularly; s4, the operation power Pi of the water pump is calculated according to the formula Pi = UiIi; s5, if the number of times that the water pump operation power Pi is smaller than the no-load power PS exceeds 50% within the continuous preset time, the step S8 is executed; otherwise, executing the step S6; s6, the temperature difference value delta Ti between the current temperature Ti and the previous temperature Ti-1 is calculated; s7, if the temperature difference values delta Ti of continuous preset times are all larger than the temperature change threshold TS, the step S8 is executed; otherwise, executing the step S2; and S8, setting a water shortage mark, stopping driving of the water pump, and returning to the step S2. Damage caused by the fact that the water level only submerges the pump body but the motor and the variable frequency driving plate are exposed in the air can be effectively avoided.

Example embodiments are directed to a building management system tailored for structures equipped with a network of electric vehicle (EV) chargers. The system integrates various components, including a host interface, HVAC systems with heat pumps and variable frequency drives (VFDs), a network of EV chargers featuring bi-directional charging capabilities, and a building management platform. Load-balancing software within panel metering devices ensures efficient energy distribution to the EV charging units. An artificial intelligence (AI) algorithm optimizes charging schedules based on historical usage data, minimizing energy consumption during peak hours. The system dynamically adjusts power allocation to EV chargers based on HVAC system demand, promoting efficient energy utilization. Real-time monitoring and analysis capabilities enhance energy management, with alerts notifying building managers of potential anomalies.

A heat dissipation control system, a heat dissipation method, and an immersion liquid cooling system are provided. The heat dissipation control system includes a radiator, a circulation pump, a fan, dry coolers, a temperature sensor, a first and a second variable-frequency drivers, and a heat dissipation controller. The temperature sensor is used for collecting a secondary-side liquid supply temperature. The heat dissipation controller is used for generating a control signal for the first and the second variable-frequency drivers based on a difference value between the secondary-side liquid supply temperature and a preset temperature. The first variable-frequency driver is used for controlling a frequency of the circulation pump so as to adjust a flow rate of a coolant flowing into the radiator. The second variable-frequency driver is used for activating or deactivating at least one of the dry coolers, and controlling a frequency of the fan.

The invention discloses a safe and energy-saving power utilization system of an air compression station driven by an air floating shaft, and relates to the technical field of air compression stations, operating parameters of all equipment in the air compression station are monitored in real time through a data acquisition module, the operating state of an air compressor can be adjusted through a variable frequency driving module according to the real-time air utilization requirement, unnecessary energy consumption is avoided, and the power utilization efficiency of the air compression station is improved. The pressure of a pipe network is monitored through a pressure sensor, the output air pressure of an air compressor is controlled within the optimal range, and energy waste caused by too high pressure is avoided; waste heat generated in the operation process of the air compressor is recycled through the energy recycling module, and the energy requirements of other links are reduced; when the multiple air compressors operate through the linkage control module, the system automatically distributes loads, it is ensured that each device operates in an efficient interval, and the loads are balanced; a protection mechanism is automatically triggered through the safety protection module under an abnormal condition, so that the safety of equipment and personnel is effectively ensured; and the control strategy of the control center ensures that the air compression station equipment is always kept stable in the operation process.

A variable-frequency drive includes a rectifier, a filter, an inverter, a capacitor bank, and control circuitry. The rectifier converts AC power from a power source to DC power on a DC bus for filtering by the filter. The inverter converts the DC power to three-phase AC power for output to the electric motor. The capacitor bank has one or more capacitors connected to the DC bus. The capacitor bank can store regenerative power on the DC bus from the inverter and can supply the stored DC power to the DC bus for conversion to the three-phase AC power to drive the electric motor. The control circuitry pre-charges the capacitor bank from the AC power of the power source. The control circuitry monitors one or more parameters of the variable-frequency drive and detects one or more fault conditions associated with the one or more monitored parameters.

A pumping system includes a plurality of interconnected integrated motor / pump modules (IMPs) submerged in a process liquid, such as liquid hydrogen (LH2), within a container, the IMPs being separately controlled by adjustable speed drives (ASDs). The rotation speeds of the IMP impellers are controlled such that the NPSH_A for each IMP remains above a minimum, critical suction head NPSH_c of the IMP, while the outlet pressure and flow of the last IMP is maintained at a specified level unless its NPSH_A falls substantially to its NPSH_c, or until the container is substantially empty. The IMPs can be identical, initially operating at the same speeds, or the first IMP can be an inducer IMP having a reduced NPSH_c. The IMPs can comprise permanent magnets or induction coils attached to their impellers that pass in proximate radial or axial alignment with stator coils. The ASDs can be variable frequency drives (VFDs).

The invention discloses a variable frequency heat pump unit and a heat dissipation control method.The variable frequency heat pump unit comprises a refrigerant circulation loop and a variable frequency driving module, the refrigerant circulation loop is formed by connecting a compressor, a heat exchanger combination, a liquid storage device and a gas-liquid separator, and the variable frequency driving module is provided with a heat dissipation pipeline; the outlet end of the heat dissipation pipeline is connected to the air suction side of the compressor, the inlet end of the heat dissipation pipeline communicates with a liquid storage cavity of the liquid storage device through a first branch and a second branch, the first branch is provided with a cooling pipe section located in the gas-liquid separator, a first throttling device is installed on the outlet side of the cooling pipe section, and the second branch is located outside the gas-liquid separator. The second branch is provided with a second throttling device; the first throttling device and the second throttling device are adjustable in opening degree and work cooperatively. The liquid refrigerant in the liquid storage device is led out to dissipate heat of the variable frequency driving module, the influence of heat dissipation on main path circulation is reduced, and the heat dissipation efficiency and the unit performance can be both considered.

The invention provides a bearing fault diagnosis method based on ISCV-VIT, and the method comprises the steps: firstly collecting a current signal when a variable frequency driver of a motor needs to operate according to the variable frequency driver, and processing the collected current signal through an ISCV method; the input current is diagnosed according to the visual converter model; the method comprises the following steps: firstly, carrying out data segmentation on a time domain signal processed by ISCV, then adding the data into an image patch sequence in a linear mode through a trained linear projection layer and position embedding, then inputting a new image color block sequence into a converter encoder, and splitting the input into a plurality of heads by a multi-head attention layer; the outputs of all the magnetic heads are connected and transmitted through the MLP magnetic head, and finally, the output initial diagnosis result is subjected to a soft voting method to obtain a final diagnosis result.

A method and system are disclosed for providing electrical power from a utility electric grid to a fracturing operation, and an electrically powered fracturing system. A mobile substation includes at least two transformer units that are operatively coupled to the utility electric grid in a parallel orientation, wherein the transformer units are capable of accessing power from the utility electric grid and stepping down the power for delivery to a switchgear. An electric motor is operatively coupled to a hydraulic fracturing pump and operatively controlled by a variable frequency drive. At least one open air relay cable is operatively coupled between the switchgear and the electric motor and capable of delivering power to the electric motor.

The invention provides an evaporator defrosting judgment method and a frequency conversion refrigerator, and the method comprises the steps that frequency conversion driving is detected to output current change information, and the current change information is obtained through compressor load change; a reference current value is obtained, the current deviation rate is calculated, the reference current value is determined based on the environment temperature and the rotating speed of the compressor, and the current deviation rate is calculated through the reference current value and the current change information; if the current deviation ratio is larger than a current deviation threshold value, a defrosting instruction is output, and the defrosting instruction is used for triggering a defrosting condition. According to the method, the output current is collected in real time through variable frequency driving, the frosting condition of the evaporator can be detected in real time through the change of the output current, the influence of the humidity of articles stored by a user, the number of the articles, the door opening time and other conditions is avoided, the frosting condition of the evaporator can be reflected, and the problem that defrosting judgment through a defrosting judgment mechanism is inaccurate is solved.

An alternating current (AC) propulsion system for a boat. The AC propulsion system includes a trolling motor operably mountable to the boat and an AC power system. The trolling motor has a head and a motor housing secured at upper and lower ends, respectively, to an elongated shaft. An AC motor is disposed in the motor housing and drives a propeller. The AC power system includes a generator and a variable frequency drive (VFD). The VFD includes a VFD AC input and a VFD AC output. The VFD AC input is electrically coupled to an AC output of the generator. The VFD AC output is operably electrically coupled to the AC motor of the trolling motor. In some embodiments a second trolling motor with an AC motor may be electrically coupled to a second VFD AC output of the VFD.

A monitoring device is for monitoring winding insulation condition of an electric motor, motor phases of which are connected to a variable frequency drive. The monitoring device is configured to determine whether the variable frequency drive is in a standby mode based on a signal received or obtained from the variable frequency drive, and to measure a standby voltage between at least one of the motor phases and the frame of the motor while the variable frequency drive is determined to be in the standby mode. The standby voltage is indicative of the winding insulation condition. A system includes a monitoring device and a variable frequency drive, and a method is for monitoring the winding insulation condition of a motor.

The invention discloses a power control method of an electric power system for polyester staple fiber production, and relates to the technical field of industrial power load cooperative control, and the method comprises the steps: collecting real-time process parameters and power grid state parameters of each energy consumption section, and calculating the expected basic power demand of each section through a section power consumption prediction model; and in combination with a power fluctuation range predicted by the power grid load fluctuation analysis model, a multi-target dynamic power distribution optimization equation is constructed for solving, so that a target set power value of each workshop section and a total regulation power instruction of the system are obtained. And the section level is adjusted to the variable frequency driver and the heating controller based on the instruction, and the energy storage unit or the standby unit is controlled to act. The method achieves the real-time precise prediction of the power demand of each workshop section, enables the total load of the system to actively cooperate with the fluctuation requirement of the power grid through dynamic optimization distribution, effectively guarantees the stability of the production technology, and improves the energy utilization efficiency and the response capability of the power grid.

The invention relates to the technical field of tail gas separation and purification devices, and discloses a tail gas separation and purification device of mold shell roasting dewaxing equipment, the tail gas separation and purification device comprises a tower body, the tower body is internally provided with a dust falling cavity and a treatment cavity which are isolated from each other from top to bottom, and the top of the treatment cavity is provided with a variable frequency transmission system; a variable-frequency driving frame capable of moving in a reciprocating mode in the axis direction of the tower body and a rotatable solenoid are installed on the variable-frequency transmission system in a transmission mode, the solenoid is rotatably installed on the variable-frequency driving frame, a first torsional spring is arranged at the rotary connecting position of the solenoid and the variable-frequency driving frame, a hollow shaft is rotatably installed on the inner wall of the solenoid, and a rotating shaft is rotatably installed on the inner wall of the hollow shaft. And the hollow shaft and the rotating shaft are linked with the solenoid. The problems of low purification efficiency, frequent maintenance, high energy consumption, short service life and the like of an existing tail gas treatment device are systematically solved through five core technologies of dynamic adjustment, anti-blocking optimization, contact strengthening, energy conservation and consumption reduction and module cooperation.

The invention belongs to the technical field of material conveying equipment, and relates to a high-stability solid material feeding valve which comprises a valve body, a rotor and a variable frequency driving assembly, a feeding port and a discharging port are formed in the upper end and the lower end of the valve body respectively, and the rotor is rotationally arranged in the valve body and comprises a center shaft and a plurality of V-shaped blades distributed in the outer circumferential direction of the center shaft at intervals; the opening direction of the V-shaped blades is consistent with the rotating direction of the rotor, wedge-shaped plates are arranged in feeding grooves formed between the adjacent V-shaped blades, the variable frequency driving assembly is used for driving the rotor to rotate, and a direct connection pull rod is arranged between the variable frequency driving assembly and the valve body. Continuous conveying of materials is achieved, reliability and stability of valve operation are improved, abnormal phenomena such as vibration and blockage in the material conveying process of the valve are reduced, solid bulk materials can be continuously conveyed to a designated area for downstream equipment to use, and the safe, efficient, stable and reliable conveying requirements of the solid materials are met.

The invention relates to a frequency converter dynamic performance optimization control method, and belongs to the technical field of power electronics. The method comprises the steps that frequency converter operation and device characteristic signals and external working condition correlation signals are collected in real time and integrated into a multi-dimensional operation data set, an analysis model is built, and a mapping relation is preset; extracting transient characteristics of a device switch, calculating a dynamic impedance parameter based on a mapping relation, and matching a parameter self-tuning rule base to generate a current loop proportionality coefficient, an integral time constant and a modulation wave duty ratio correction; a rotating speed and current double-loop fusion framework is built, the weight of an outer loop is dynamically adjusted according to rotating speed deviation and load sudden change, an inner loop adopts an adaptive reaching law and disturbance compensation, and a cooperative control instruction is generated through inter-loop interaction; monitoring instruction execution data to form feedback, correcting a model mapping relation and optimizing control parameters. The dynamic response precision of the frequency converter under complex working conditions is improved, the anti-disturbance capability is enhanced, and meanwhile, the device operation loss and the manual debugging cost are reduced.

A driving system includes: a power circuit (600, 700, 800) having a plurality of power cells supplying power to output phases (A, B, C), each output phase including a phase group of power cells connected in series; a voltage source power supply; and a bypass mechanism (650, 750, 850) comprising a backup power unit and a bypass contactor, where the phase groups of the power circuit are connected at the common coupling point, and where the backup power unit is mounted at the common coupling point.

The invention relates to the technical field of heat pump systems, and provides a frequency control method, device and equipment of a heat pump system and a storage medium, and the method comprises the steps that in response to a received refrigeration operation instruction, an environment temperature parameter and an exhaust temperature parameter of a compressor are obtained; based on the environment temperature range where the environment temperature parameters are located and the exhaust temperature interval where the exhaust temperature parameters are located, the frequency reduction amplitude is determined; and according to the frequency reduction amplitude, the operation frequency change of the compressor is controlled, and the frequency conversion driving module is cooled through the refrigeration module. According to the method, the frequency reduction amplitude is dynamically determined based on the multiple parameters, intelligent adjustment of the operation frequency of the compressor is achieved, reliable operation of the unit in the high-temperature environment is guaranteed, and the refrigeration energy efficiency ratio of the unit is effectively increased.

An axial field rotary energy device or system includes an axis, a PCB stator and rotors having respective permanent magnets. The rotors rotate about the axis relative to the PCB stator. A variable frequency drive (VFD) having VFD components are coupled to the axial field rotary energy device. An enclosure contains the axial field rotary energy device and the VFD, such that the axial field rotary device and the VFD are integrated together within the enclosure. In addition, a cooling system is integrated with the enclosure to cool the axial field rotary energy device and the VFD.

The invention relates to the technical field of raw material mixing devices, in particular to a raw material mixing device for cheese preparation. Comprising a kettle cover and a kettle body, a folding frame is installed in the kettle body in a sliding mode, a transmission system is arranged on the kettle cover, a differential rotating shaft barrel and a rotating frame are installed on the transmission system in a transmission mode, a sliding frame is installed on the rotating frame in a sliding mode, and a reciprocating driving system and a variable frequency driving system which are in linkage with the shaft barrel are arranged on the rotating frame. The reciprocating stroke and the reciprocating frequency of the sliding frame are circularly switched between two modes, an input shaft is rotationally installed on the sliding frame, and the variable-frequency driving system drives the input shaft to alternately rotate forwards and backwards and rotate at a variable speed. The three-dimensional dynamic stirring device has the beneficial effects that through cooperative linkage of the transmission system, the variable frequency driving system and the reciprocating driving system, a three-dimensional dynamic stirring space is constructed, and the problems of raw material layering and mixing dead angles caused by single stirring direction and fixed track of a traditional device are solved.

The invention discloses a concrete production waste slurry environment-friendly treatment system and method.The concrete production waste slurry environment-friendly treatment system comprises a dynamic cyclone separation unit, a membrane filtration integration unit, a chemical flocculation reaction cabin and a resource utilization module which are sequentially connected, and the dynamic cyclone separation unit comprises a multi-stage cyclone set and a variable frequency driving device; the cyclone group realizes particle classification through cyclone cavities with different taper angles and diameters; the membrane filtration integrated unit comprises a hollow fiber ultrafiltration membrane assembly and a cross-flow filtration assembly; the chemical flocculation reaction cabin comprises an on-line water quality monitoring device and a flocculant accurate adding unit; the resource utilization module comprises a sludge carbonization reaction assembly and a clear water recycling pipe network, the sludge carbonization reaction assembly comprises a sludge carbonization reactor and a centrifugal machine, the sludge carbonization reactor converts dewatered sludge into an adsorbent through low-temperature pyrolysis at 400-600 DEG C, and the clear water recycling pipe network is provided with an ultraviolet disinfection device. The sludge carbonization reactor is provided with the waste heat recovery system, high-temperature flue gas heat generated in the sludge carbonization process is transferred to the waste slurry to be treated through the waste heat recovery system, the heating energy consumption in the pretreatment stage is reduced, the treated sludge is treated through the carbonization reactor, a porous carbon adsorbent is generated, and the sludge is recycled. The adsorbent can be used for adsorbing or recycling heavy metal ions, thereby reducing pollution and lowering treatment cost.

The invention relates to the technical field of elevator control, and discloses a variable frequency driving system for elevator control, the system comprises a dynamic speed regulation control end, a voltage frequency cooperation end, a harmonic suppression management end and a multi-stage voice alarm module, the dynamic speed regulation control end is arranged, and when elevator operation control is carried out, the voltage frequency cooperation end is matched with the harmonic suppression management end; a speed regulation and control curve is automatically generated based on the load state and the operation requirement, and the acceleration change process is optimized in the start-stop stage, so that the system can eliminate current impact during traditional power frequency start, stable start of a motor is ensured, load impact of mechanical transmission parts is reduced, and abnormal abrasion of equipment is avoided; voltage and frequency output characteristics are dynamically matched by adopting a closed-loop regulation technology, so that the system can automatically regulate power output according to actual load requirements, the defects of light-load energy consumption waste and insufficient heavy-load power of a traditional scheme are overcome, and efficient and stable operation under different load working conditions is ensured.

The invention relates to the technical field of agricultural harvesting equipment, in particular to an awn crushing, threshing and cleaning device of a highland barley combine harvester. Wherein the threshing cylinder is divided into a front end awn crushing section and a rear end threshing section, two sections of spike teeth are driven to rotate reversely through a coaxial reversing mechanism, a feeding auger and an awn crushing fan are arranged at the front end, and material conveying and preliminary wheat awn scattering are synchronously achieved; an anti-blocking and unblocking roller device is assembled on the outer side of the arc-shaped concave plate, and screen hole clamping objects are carded in real time; a top cover plate of the threshing cylinder is provided with a sectional type material guide plate, a hydraulic spike tooth assembly and a feeding quantity sensor, and the material accumulation working condition is dynamically adapted; the controllable fan is provided with a variable frequency drive and an adjustable air guide plate, and the air speed and the airflow direction can be adjusted according to working conditions. All the modules work cooperatively through the controller, threshing-awn crushing-cleaning integrated operation of highland barley is achieved, threshing thoroughness, awn processing efficiency and cleaning precision can be improved, manual intervention is reduced, and the requirement for large-scale highland barley harvesting is met.