104 results about "Belt speed" patented technology

The invention discloses a self-adaptive variable-frequency speed regulation device based on a scraper conveyor and a control method, and relates to the technical field of automatic control, and the method comprises the following steps: collecting real-time operation data of the scraper conveyor through a data sensing module, and determining operation demand information of equipment; the evaluation calculation module sets an operation parameter interval and generates an evaluation index. And the rotating speed correlation analysis module performs rotating speed correlation analysis on the real-time data according to the evaluation indexes, constructs a rotating speed correlation list and generates a correlation learning result. And the dynamic matching module calls the frequency converter for dynamic matching to generate an output frequency parameter group. And the linkage control strategy making module executes the intelligent speed regulation control strategy and adjusts the belt speed of the scraper conveyor. The technical problems that in the prior art, due to the fact that the speed of a scraper conveyor cannot be intelligently adjusted under different load conditions, overload shutdown is caused, the energy efficiency is low, and equipment abrasion is aggravated are solved, and the technical effects of reducing energy consumption, reducing equipment abrasion and prolonging the service life are achieved.

The embodiment of the invention relates to the technical field of permanent magnet synchronous motor control, and particularly provides a permanent magnet synchronous motor belt speed restarting method based on zero current control, a computer readable storage medium and computer equipment. The belt speed restarting method comprises the following steps that the stator current of the permanent magnet synchronous motor is adjusted to zero, and the rotor position and rotating speed information of the permanent magnet synchronous motor are preliminarily estimated; the electromagnetic torque of the permanent magnet synchronous motor is adjusted to zero, and the preliminarily estimated rotor position and rotating speed are accurately estimated; and finishing belt speed restarting of the permanent magnet synchronous motor by adopting a position sensorless control strategy corresponding to the rotating speed according to the accurate estimation result of the rotor position and the rotating speed information. With such a configuration, it is possible to improve the accuracy of position information and effectively suppress current shock during tape speed restart.

The invention provides a self-adaptive variable-frequency speed regulation control method for a belt conveyor, which comprises the following steps: acquiring current material loading capacity data through a weight sensor, comparing the current material loading capacity data with a preset standard loading capacity to obtain a deviation value of the loading capacity, and controlling the feeding speed of a feeding device according to the deviation value. The loading capacity of the conveyor is maintained within a reasonable range by adjusting the loading speed of the materials; the speed sensor is adopted to obtain current belt speed data, the current belt speed data is compared with a preset standard speed to obtain a speed deviation value, the output frequency of the frequency converter is controlled according to the size and positive and negative of the deviation value, and the belt speed is maintained within a reasonable range by adjusting the rotating speed of the motor. The control strategy can be automatically optimized according to different working conditions, belt tension and speed fluctuation are effectively reduced, stable operation of the conveyor in a complex and changeable environment is ensured, and conveying efficiency and safety are improved.

A feed control system for a spreader includes a section configuration module configured to output a section configuration and a section control module configured to receive the section configuration, determine a first actuator position based on the section configuration, and determine a second actuator position based on the section configuration. The feed control system also includes a belt speed module configured to receive the section configuration, receive a commanded belt speed, and determine a target belt speed based on (i) the section configuration and (ii) the commanded belt speed.

The invention relates to the field of anti-blocking control methods for crushers, in particular to an intelligent anti-blocking feeding control method and system for a crusher, and the method comprises the steps: initializing rated working parameters of the crusher; the current of a main motor, the speed of a feeding belt and the material level of a crushing cavity are collected in real time; the current change rate is calculated according to the current of the main motor, whether the current change rate is larger than a threshold value or not is judged, if yes, preventive speed reduction is executed, and meanwhile the size of a discharging opening is enlarged; if not, entering the next step; calculating a dynamic control quantity according to the weight coefficient, the current of the main motor, the speed of the feeding belt and the material level of the crushing cavity; controlling the crusher according to the dynamic control quantity; the system comprises a detection module, a control decision module and an execution module. The material blocking risk can be reduced in the material blocking germination period, and the anti-blocking effect is improved.

According to the parcel stack removing method and system on the stack removing device, the positions of parcels are detected on the basis of multiple sets of conveying belts with height differences, the positions of the parcels are corrected in combination with a compensation offset formula, and the positions of the parcels on the belts and corresponding speed information are accurately obtained; key indexes such as area distribution, number and positions (front section / middle section / tail section) of the packages on each section of conveyor belt are calculated; on the basis of key indexes, the speed of each section of belt is dynamically adjusted according to inverted-order calculation logic, and a targeted strategy is formulated by combining the parcel position (whether the parcel reaches the tail section or not), the downstream belt state (the number and area threshold) and the like; through accurate position compensation and correction, the problem of detection deviation caused by belt operation delay is solved; by means of reverse-order calculation and multi-gear speed control, dynamic matching of the speed of the upstream belt and the speed of the downstream belt is achieved, and secondary stacking is reduced; the cooperative operation strategy of the inlet conveyor belt avoids parcel slipping, and the delay starting rule of the fall belt reduces the overlapping risk.

A treadmill with a fan that directs an airflow toward a user is provided. A fan controller receives an input signal corresponding to a belt speed of the treadmill belt and converts the input signal into an output signal to the fan to control the speed of the airflow by adjusting the rotational speed of the fan. The fan controller is calibrated to adjust the fan speed so that the air speed experienced by the user matches the belt speed, thereby accurately simulating the airflow and air resistance that the user would experience when running over ground at the same speed that the treadmill belt is moving.

The invention relates to a method, a system and equipment for calculating belt transportation volume and a storage medium. The method comprises the following steps: acquiring a belt speed at each moment in a specified time period and point cloud data generated by scanning a coal flow outer contour on a belt by a radar; according to the point cloud data, calculating the area of the cross section of the coal flow at each moment in the specified time period and the proportion of different components; and according to the belt speed, the area, the proportion of the components and the preset component density, calculating the belt conveying capacity in the specified time period. According to the technical scheme provided by the invention, the components and proportion of the coal flow are judged based on the point cloud data, and the accuracy of a coal quantity calculation result can be greatly improved.

A header and a crop merger are operably attached to a harvester, wherein the crop merger receives cut crop from the header. A controller is operably connected with the header and the crop merger to determine if the header is approaching a headland or crop to cut. The controller receives one or more of a merger belt speed provided by a belt speed sensor associated with a crop belt of the crop merger, a maximum crop flow distance, and a merger belt motor pressure provided by a merger belt motor pressure sensor associated with a motor of the crop merger to determine whether to actuate a crop merger actuator to raise or lower the crop merger as the header approaches the headland. The controller receives harvester system inputs that include at least vehicle speed and cutter width of the header to identify the headland.

The invention relates to the technical field of intelligent control and automatic equipment of mining machinery, in particular to an intelligent speed regulation feeding conical crawler belt crushing and screening station based on multi-source data feedback. Comprising a feeding machine, a material returning belt, a conical crushing set, a double-power bag, an upper screen belt, a material returning screen, a screen lower belt, a transition belt, a weak current box, a crawler chassis, a waste chute, a strong current box, a monitoring alarm system, an external operation assembly and a machine body, the crawler chassis is assembled at the lower end of the machine body, the feeding machine is assembled on one side of the machine body, and the material returning belt is assembled on the other side of the machine body; a cone breaking set is assembled at the upper end of the machine body, a wireless transmitter in an external operation assembly is assembled in the machine body, a transition belt is assembled on one side of the machine body, data transmitted back to a controllable programmer in real time is analyzed through a discharging radar level gage and a feeding radar level gage, and belt speed data is calculated. And the frequency converter controls the rotating speed of the variable-frequency speed-regulating speed-reducing motor, so that the feeding belt speed of the feeder is controlled.

The invention provides an automatic deviation rectifying device for a bidirectional belt blanking point, and belongs to the field of deviation rectifying. The direction identification module is used for acquiring a belt running direction signal through a belt speed sensor or an encoder; the control mechanism is electrically connected with the sensor set and the direction recognition module and receives blanking position data and belt running direction signals. When it is detected that the blanking position deviates from the preset blanking center and exceeds the preset threshold range, the offset and the offset direction are calculated; in combination with the running direction of the belt, the deviation correction side corresponding to current blanking is judged, and a deviation correction instruction is generated; the adjusting device is used for adjusting the position of a blanking point according to an instruction of the control mechanism, and the bidirectional adjusting device is mounted below the blanking port and can change the material falling angle; the carrier roller capable of transversely moving is arranged below the belt, and the carrier roller is driven by a motor to adjust the local position of the belt so as to indirectly correct the blanking point. According to the invention, real-time detection, direction identification and automatic adjustment of the blanking point position are realized.

The invention provides an on-line monitoring device and an on-line monitoring method for detecting belt slipping. The on-line monitoring device comprises a millimeter wave radar sensor, a machine vision module, an anti-jumping rocker arm speed measuring mechanism and a central processing unit. The belt speed is directly measured through the millimeter wave radar, meanwhile, the rotating speed of the roller is calculated by analyzing images of the induction strips arranged on the end face of the roller through the machine vision module, and the slip ratio between the belt and the roller is accurately calculated by fusing data of the two sensors; the high anti-interference capability of the millimeter wave radar and the visual accuracy of machine vision are utilized to form advantage complementation, real-time and high-precision online monitoring and early warning of belt slipping are achieved through a data fusion algorithm, and the problems that in the prior art, the system is prone to being affected by the environment and measurement is inaccurate are effectively solved.

The utility model discloses a bucket elevator which comprises a shell, an elevating assembly, a belt speed detecting mechanism and an adjusting mechanism. The lifting assembly comprises an upper belt pulley and a lower belt pulley which are arranged in the shell, a transmission belt arranged between the upper belt pulley and the lower belt pulley and a hopper hinged to the side wall of the transmission belt, the belt speed detection mechanism is used for detecting the transmission speed of the transmission belt, and the adjusting mechanism is used for adjusting the tightness of the transmission belt. Whether the transmission belt is loose or not can be known by calculating the stroke length through the interval time of two signals, the matched rotating speed and the outer diameter of the belt pulley, maintenance and adjustment are needed when the transmission belt is loose, the threaded rod is driven by the driving motor to rotate, the threaded block drives the lower belt pulley to move, and the distance between the lower belt pulley and the upper belt pulley is adjusted. And the tightness of the transmission belt is adjusted.

The utility model discloses an adjustable material conveying head material collecting device which comprises a head cover, a material collector, a front-back adjusting mechanism and an angle adjusting mechanism, the front-back adjusting mechanism and the angle adjusting mechanism are installed outside the head cover, the material collector is movably installed inside the head cover, and a movable main shaft is arranged in the middle of the back side of the material collector. The two ends of the movable main shaft are installed on the sliding rail assemblies on the two sides through shaft seats. The front-back adjusting mechanism comprises a front-back driving assembly, a connecting shaft and two first worm transmission assemblies which are in transmission connection in sequence. The angle adjusting mechanism comprises an angle driving assembly and a second worm transmission assembly. According to the material collecting device, the position of the material collector can be adjusted in real time according to changes of the material type, the carrying capacity of the conveying belt and the belt speed, moving material flow is collected and limited at a low impact angle, the impact force of the material flow on the material collector is reduced, the maintenance cost of the conveying belt is reduced, and the production efficiency is improved; and each component adopts a modular design and is convenient to install.

The utility model relates to the technical field of cutting and laminating equipment, and discloses a passing roller and a diaphragm belt path of a battery core laminating machine, and the passing roller comprises a shaft core, a roller, a bearing piece and a bearing, the bearings sleeve the two ends of the shaft core; the bearing piece is arranged on the bearing; the two ends of the roller are arranged at the ends, away from the bearings, of the two bearing pieces respectively and arranged between the two bearing pieces so that the roller can drive the two bearing pieces to rotate around the shaft core when rotating. The roller cylinder of the passing roller is connected with the bearing through the bearing piece, so that the diameter of the roller cylinder is not limited by the diameter of the bearing, the situation that the diameter of the roller cylinder is too large due to the fact that the diameters of the bearing and the shaft core are large is effectively prevented, the weight of the roller cylinder is reduced, and inertia of the roller cylinder during reversing is effectively reduced; the problem that the diaphragm is wrinkled and uneven due to the fact that the roller cannot be stopped in time is solved, the quality of a battery cell is guaranteed, and the roller can be applied to a diaphragm belt path with a higher belt running speed due to the lighter roller.

The invention provides a plate shape control method, device and equipment, a medium and a program product, and relates to the technical field of plate shape control. The method comprises the steps that in the process of rolling a target plate blank through a target rolling mill, the plate shape of the target plate blank is controlled based on the target loading speed and the target vertical roll speed; wherein the target load speed is the target speed when the roller way of the target rolling mill is loaded, and the target load speed is higher than the original load speed of the roller way; the target vertical roll speed is the target speed of a vertical roll of the target rolling mill when the target plate blank is subjected to odd-pass rolling and a flat roll of the target rolling mill is loaded, the target vertical roll speed is lower than the original vertical roll speed, and the target vertical roll speed is determined based on the preset tension; the preset tension is determined based on a first torque when the vertical roller is loaded and a second torque when the flat roller is loaded. According to the plate shape control method, device and equipment, the medium and the program product, the rolled plate shape qualification rate of the target plate blank can be increased.

This invention discloses a belt take-up and unwinding device for a continuous belt conveyor. The device includes a take-up and unwinding assembly and a measuring assembly. The take-up and unwinding assembly includes a control mechanism, a drive mechanism, and a drum mechanism. The drive mechanism drives the drum mechanism to perform take-up or unwinding actions. The control mechanism controls the working state of the drive mechanism. The control mechanism uses the measuring assembly to measure in real time the belt speed of the outermost layer of the conveyor belt and the overall diameter of the drum during take-up or unwinding actions. Based on the measured belt speed and drum diameter, the control mechanism adjusts the working state of the drive mechanism in real time to maintain a constant belt speed during take-up or unwinding. The solution provided by this invention is applicable to the take-up and unwinding operation of continuous belt conveyors, enabling constant belt speed control during take-up and unwinding, ensuring reliable operation, especially during take-up, and effectively overcoming the problems existing in the prior art.

The invention provides a belt sampling time point control method and device, electronic equipment and a storage medium, and relates to the technical field of monitoring, contour information of coal flow on a conveying belt is obtained in real time in a non-contact measurement mode, and meanwhile, the sampling triggering moment is dynamically determined in combination with the running speed of the belt, so that the sampling time point is controlled. And the sampling trigger moment, the coal flow existence detection signal and the periodic sampling signal are subjected to interlocking logic judgment, so that the problems that in the prior art, as a contact type mechanical baffle is adopted for detection, the coal flow state is judged by depending on a fixed height threshold value and the belt speed change cannot be dynamically adapted can be solved; and meanwhile, the problems of low detection precision, inaccurate sampling trigger time and insufficient sampling representativeness caused by lack of effective interlocking with coal flow existence and periodic signals are solved.

The invention belongs to the technical field of belt conveyors, and discloses a multi-section belt conveyor operation state cooperative control method. Comprising the following steps that S1, operation parameters of the multi-section belt conveyor are collected in real time, and normalization processing is conducted on the operation parameters; according to the method, the optimal belt speed of the standby machine capable of maintaining the raw material flow of the system is predicted by setting the belt speed prediction model, the extra material loss amount generated in the replacement period of the standby machine can be quantitatively predicted through the loss amount prediction model before the standby machine is put into use, and the loss difference value is obtained based on the predicted material loss amount after the maintenance is completed. Starting a global cooperative speed compensation mechanism, scientifically distributing the material quantity needing to be supplemented to each section of conveyor in the system, calculating a global optimal belt speed adjustment scheme of each section on the premise of considering the real-time efficiency, the safety margin and the upstream and downstream positions of each section, executing the scheme in a cooperative synchronization mode, and finally achieving the optimal belt speed adjustment of each section at the minimum system disturbance and energy consumption cost. And the total conveying amount is accurately supplemented.

The invention belongs to the technical field of agricultural mechanical transmission, and discloses a stepless speed regulation and multi-gear speed change integrated threshing cylinder transmission system which comprises a driving pressure plate assembly (1), a driven pressure plate assembly (2), a V-shaped transmission belt, an electric control belt speed change mechanism and an axial flow gearbox (4). The driving pressure plate assembly (1) is fixedly installed on a power output shaft of the harvester, the driven pressure plate assembly is fixedly installed at the front end of an input shaft of an axial flow gearbox, and the V-shaped transmission belt is embedded between the driving pressure plate assembly and the driven pressure plate assembly in a surrounding mode to transmit power. The electric control belt speed change mechanism is connected with the driving pressure plate assembly (1) to adjust the distance between the driving pressure plate assembly and the driving pressure plate assembly, and stepless speed regulation is achieved. Through cooperation of stepless speed regulation and multi-gear speed change, the problems that in the prior art, the speed regulation range is narrow, precision is low, and reliability is poor are effectively solved, the operation efficiency and harvesting quality of the combine harvester are remarkably improved, and wide application prospects are achieved.

The invention discloses a carrier roller wear thickness detection method and device, and belongs to the technical field of carrier roller wear thickness detection, and the method comprises the steps: carrying out the synchronous collection of the operation speed and temperature parameters of a belt, a carrier roller and a roller; the running speed of the belt is used as a unified kinematics reference, and the rotating speed consistency of the carrier roller and the roller under the same belt speed condition is judged; inverting the actual running diameters of the carrier roller and the roller; the abrasion thickness of the carrier roller is calculated according to the difference between the actual operation diameter and the initial nominal diameter of the carrier roller; carrying out combined judgment on the operation state; and carrying out threshold judgment on the wear degree of the carrier roller and evaluating the development trend of the carrier roller. By adopting the method and the device, on the basis of wear thickness calculation, the historical change data of the wear thickness is introduced, and the wear evolution process is subjected to constraint analysis in combination with the operation state judgment result, so that the wear development trend of the carrier roller can be evaluated, and a data support is provided for carrier roller residual life prediction and operation and maintenance decision.

The present application relates to material conveying equipment field, disclose a kind of big inclination belt bucket belt excess material shake-off device, including vibration roller and transmission part, vibration roller is rotatably installed in big inclination belt bucket belt body return section one side, its roll face is equipped with multiple knock stick arranged at interval along circumference;Transmission part is connected with vibration roller transmission, for driving vibration roller rotation along with the same direction of return section operating direction.In the operation of big inclination belt bucket belt body, the linear velocity of vibration roller is greater than the operating speed of big inclination belt bucket belt body, so that multiple knock stick is in contact after instantaneous disengagement from the surface of belt, form intermittent patting action, thereby shake off residual material in hopper.The present application utilizes the instantaneous disengagement action generated by vibration roller linear velocity greater than belt speed, both cooperatively form high-frequency pulse vibration, simultaneously transmit vibration to hopper, can effectively remove adhering material in belt bucket belt hopper and on belt, avoid belt deviation and wear, without secondary pollution.

The invention relates to the technical field of coal resource scheduling, in particular to a coal resource scheduling method and system. Comprising the steps that an operation state signal, the theoretical rotating speed of a driving motor, the theoretical belt speed obtained through conversion, the instantaneous material weight per unit length output by a weighing device and economic parameters are obtained; according to the running state signal, the actual running speed of the conveying belt is calculated; based on the actual operation speed and the instantaneous weight of the material per unit length, the conveying capacity deviation is calculated; extra energy consumption in the monitoring period is calculated; calculating the consumption of the environment-friendly agent, and accounting the downstream compensation cost in combination with economic parameters; and generating an economic benefit and energy consumption loss report, and outputting a maintenance suggestion or a scheduling correction instruction. The method aims at solving the problems that in an existing coal resource scheduling method, due to the fact that conveying capacity deviation cannot be recognized in time, calculation errors of the instantaneous conveying capacity are caused, and finally the optimization effect of a scheduling system and clean and efficient utilization of coal are affected.

The utility model discloses a semi-part fixed length detection device for a secondary method semi-steel radial tire building machine, which relates to the technical field of tire production and comprises a fixed plate, mounting blocks are fixedly mounted at the top and the bottom of the fixed plate, slide rails are symmetrically and fixedly mounted on one side of the fixed plate, a base is slidably mounted between the two slide rails, and a fixed plate is mounted on the base. A mounting plate is fixedly mounted on one side of the fixing plate and located between the two sliding rails, and a linear guide rail is fixedly mounted on one side of the base through screws. The position of the fixed-length detection lens can be accurately adjusted according to a tire forming construction mark, the fixed-length length of the half part is directly detected through the detection device, the detection result is the actual fixed-length length of the half part, the fixed-length precision stability of the half part is improved, a traditional motor fixed-length mode is replaced, and the working efficiency is improved. And the problem of inaccurate actual fixed length caused by the phenomena of mismatching of front and rear conveying belt speeds, stretching of half parts, slipping of the half parts and the conveying belt and the like in the length fixing process of the motor is solved.

This invention discloses a belt conveyor speed control system and method. The system includes a control module, a conveyor belt, and a depth camera. The conveyor belt includes a speed control belt and at least one coal mining belt. The coal mining belt overlaps with the speed control belt, and a depth camera is installed at a monitoring point on each coal mining belt. The depth camera is used to acquire coal quantity data on the coal mining belt. The control module is communicatively connected to the depth camera. The control module is used to obtain the predicted flow rate at the coal drop point at the overlap of the coal mining belt and the speed control belt based on the coal quantity data corresponding to the coal mining belt, select the maximum value of the predicted flow rate corresponding to the coal drop point, and adjust the operating speed of the speed control belt according to the maximum value of the predicted flow rate and the rated flow rate of the speed control belt. The technical solution provided by this invention achieves energy saving of the speed control belt based on operating conditions.

The present invention provides an adaptive variable frequency speed control method for a belt conveyor, comprising: obtaining current material loading data through a weight sensor, comparing the current material loading data with a preset standard loading, obtaining a deviation value of the loading, controlling the feeding speed of a feeding device according to the size of the deviation value, and maintaining the conveyor loading capacity within a reasonable range by adjusting the material loading speed; obtaining current belt speed data through a speed sensor, comparing the current belt speed data with a preset standard speed, obtaining a speed deviation value, controlling the output frequency of a frequency converter according to the size and positive and negative of the deviation value, and maintaining the belt speed within a reasonable range by adjusting the motor speed. The present invention can automatically optimize the control strategy according to different working conditions, effectively reduce belt tension and speed fluctuations, ensure the stable operation of the conveyor in complex and changing environments, and improve conveying efficiency and safety.

The present invention relates to the technical field of mining belt conveyors, and particularly to a system for visually identifying and positioning a tearing fault of a conveyer belt of a mining belt conveyor. The system includes: an industrial camera, the industrial camera being fixedly mounted above a return conveyer belt and configured to collect a crack image of a surface of the conveyer belt of the belt conveyor; a belt speed sensor, the belt speed sensor being configured to collect a moving speed of the conveyer belt in real time; an industrial computer, the industrial computer being connected to the industrial camera and the belt speed sensor, and configured to determine whether the tearing fault has occurred on the conveyer belt according to the crack image of the surface of the conveyer belt of the belt conveyor collected by the industrial camera and to collect the moving speed of the conveyer belt collected by the belt speed sensor; and an industrial frequency converter, the industrial frequency converter being controlled by a logic controller, and the industrial frequency converter controlling a roller motor to align the position of the fault of the conveyer belt to a maintenance area.

The utility model relates to the field of motors, in particular to a water-cooled motor structure. Comprising a motor shell, a reduction gearbox body is installed at one end of the motor shell, a rear end cover is installed at the end, away from the reduction gearbox body, of the motor shell, a cover plate is installed on the side, away from the motor shell, of the rear end cover, and an air cooling belt speed reducer is installed on the side, away from the motor shell, of the reduction gearbox body. The water-cooled motor structure provided by the utility model has the advantages that the motor can be conveniently and quickly cooled, and the situation that in the prior art, the surface of the motor is relatively smooth, so that heat is accumulated in the motor after the motor is used for a long time, and the internal temperature of the motor is too high is avoided; and a liquid inlet pipe and a liquid outlet pipe are mounted on the surface of the shell, cooling liquid is injected into the motor shell through the liquid inlet pipe, and then the cooling liquid is circulated outwards through the liquid outlet pipe, so that the cooling speed of the motor can be accelerated.

The invention relates to the technical field of industrial automatic conveying systems, and discloses a conveying belt anti-blocking energy-saving control system and method based on multi-sensor collaboration.The conveying belt anti-blocking energy-saving control system comprises a conveying belt unit, a sensor unit, a speed-adjustable driver and a central controller, the conveying belt unit is composed of multiple stages of conveying belts which are sequentially connected, and the sensor unit is connected with the speed-adjustable driver; comprising a position sensor installed at the tail end of each belt, a counting sensor arranged at a system inlet or a key node, a speed-adjustable driver, a motor for driving each conveying belt and capable of receiving a speed control signal to adjust the speed, and a central controller comprises a core processing unit, a timer, a human-computer interaction interface and an alarm. Position sensor signals and the timer cooperate to judge material blockage, the belt speed is dynamically adjusted, energy saving is achieved, and the device is suitable for high-safety scenes such as civil explosions.

The application discloses a brushless controller belt brake system and control method for a treadmill, which comprises a brushless motor connected with a treadmill belt; the output end of a UVW three-phase circuit is connected with the three-phase winding of the brushless motor, and the input end is connected with AC power; the brake control unit with multiple preset threshold parameters is built in the main control module; the output end of the multi-scene trigger module is connected with the main control module, and is used for providing the safety lock state, the belt speed, the treadmill inclination angle and the power supply state signal to the brake control unit; the voltage sampling unit is connected in parallel with the bus circuit, and the output end is connected with the main control module; the power supply maintenance module is connected with the bus circuit. The application covers the live waiting scene, the safety lock falling scene and the power-off sliding scene, avoids the speed out of control of the treadmill under the extreme working condition, sets the differential increment threshold in the live waiting scene braking to realize the smooth deceleration, and uses the belt sliding energy to generate electricity to use when there is no commercial power.