79 results about "Belt speed" patented technology

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.

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 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.

The utility model relates to the technical field of belt conveyor systems of shield tunneling machines, in particular to a novel belt speed detection device for a belt conveyor, which is characterized in that a transmission shaft is arranged in a shell, a gear sheet is sleeved in the middle of the transmission shaft, two bearings are further sleeved on the transmission shaft, and the two bearings are positioned on two sides of the gear sheet; the two ends of the transmission shaft are connected with rubber wheels respectively, and the rubber wheels and the transmission shaft can rotate synchronously. The shell is connected with an iron cover plate, the iron cover plate is connected with a sensor fixing seat, the sensor fixing seat is connected with a sensor, the position of the sensor corresponds to the position of the gear piece, and the sensor is used for detecting rotation of the gear piece; the shell is connected with a lengthening plate, the lengthening plate is connected with a U-shaped block, the U-shaped block is connected with an M14 outer hexagon bolt, and one end of the M14 outer hexagon bolt is connected with an M14 nut. Compared with the prior art, the novel belt speed detection device for the belt conveyor is simple in structure, convenient to maintain and replace and capable of effectively saving manpower maintenance cost.

The application provides a belt speed rethrow method and system applied to a motor driving device, and the method comprises the following steps: S1, converting vector control electric parameters of a three-phase asynchronous motor to an MT coordinate system, wherein an M-axis component is an excitation current, and a T-axis component is a torque current; based on a generalized slip relationship and an adaptive gain coefficient in the MT coordinate system, an adaptive flux linkage model is constructed according to a voltage control model and a current control model; S2, inputting the M-axis component and the T-axis component into the adaptive flux linkage model to track a real-time motor rotor position; and S3, adaptively switching a motor vector control mode to a voltage control mode or a current control mode according to the real-time motor rotor position parameter. The application can quickly track the position of the induction motor rotor, switch the better control mode according to the tracking result, quickly start the high-speed rotating motor, and has very small current impact, high safety and strong parameter robustness.

The application relates to the technical field of coal resource scheduling, in particular to a coal resource scheduling method and system. The method comprises the following steps: acquiring a running state signal, a theoretical rotating speed of a driving motor, a theoretical belt speed converted according to the theoretical rotating speed, an instantaneous unit length material weight output by a weighing device and economic parameters; calculating an actual running speed of a conveying belt according to the running state signal; calculating a conveying capacity deviation based on the actual running speed and the instantaneous unit length material weight; calculating extra energy consumption in a monitoring period; calculating an environmental protection agent consumption amount, and calculating a downstream compensation cost in combination with the economic parameters; generating an economic benefit and energy consumption loss report, and outputting a maintenance suggestion or a scheduling correction instruction. The method aims to solve the problem that, in the existing coal resource scheduling method, the conveying capacity deviation cannot be identified in time, the instantaneous conveying amount calculation error is caused, and finally the scheduling system optimization effect and clean and efficient utilization of coal are affected.

The utility model discloses an intelligent belt type storage bin which comprises a V-shaped storage bin body, various rollers, a coupler, an anti-overflow apron board, an AI camera, a material level instrument, a weighing system, an AI intelligent system and the like. Materials are monitored in real time through the AI camera and the material level instrument, and the belt conveyor is automatically controlled to be started and stopped; the AI intelligent system achieves intelligent starting and stopping and unattended operation by means of a PLC, and the belt conveyor utilizes a frequency converter and a PLC control system to adjust the rotating speed of a belt in cooperation with PID. The storage bin body is formed by combining a plurality of independent bin bodies and is convenient to mount, dismount and reuse. The AI intelligent control system controls the running speed of the belt conveyor, and the belt conveyor runs at a low speed when storing materials and runs at a high speed when discharging materials. According to the utility model, the storage problem of the old-fashioned storage bin is effectively solved, the number of operators is reduced, the manual maintenance probability is reduced, the stable operation of equipment is ensured, the real-time control of coal quantity and flow and the intelligent management of the storage bin are realized, the investment and maintenance cost is low, and the effect is quick.

The embodiment of the invention relates to the technical field of belt conveying equipment detection, and discloses a tachometer wheel and slip switch intelligent mutual detection method, device, equipment and medium, and the method comprises the steps: obtaining speed data and slip switch signals measured by a belt scale tachometer wheel of a target belt conveyor; in the starting stage of the target belt conveyor, fault detection is carried out on a belt weigher tachometer wheel and a slip switch according to the speed data; if a fault exists in a slip switch, a redundant slip protection mode is started in the operation stage of the target belt conveyor, and slip protection is conducted according to the speed data in the redundant slip protection mode; and if the redundant slip protection mode is not started, mutual verification is carried out according to the belt speed data and the slip switch signal in the operation stage of the target belt conveyor. According to the intelligent mutual inspection method for the tachometer wheel and the slip switch, the problems that damage to the tachometer wheel and the slip switch of a belt weigher is difficult to perceive in time, and manual inspection and regular maintenance are lagged in response and low in detection efficiency are solved.

The utility model discloses a 180 degree twisted belt turnover mechanism, aims at solving the problem of low efficiency, poor precision, insufficient adaptability and health safety when 180 degree turnover of materials in the industry such as logistics sorting, food packaging. The mechanism is composed of rack, driving device, twisted belt assembly, the driving device adopts servo motor to combine with synchronous belt drive, and the belt speed is accurately adjusted, the multilayer composite belt of twisted belt assembly realizes stable turnover through special twisted structure and gap adjusting roller, tensioning device, when working, the material is driven by the driving device to realize 180 degree turnover. It has the advantages of improving production efficiency, improving turnover precision, enhancing equipment adaptability, etc. In the logistics sorting, the turnover efficiency of the package can be improved several times, and in the food packaging industry, the food hygiene and safety can be guaranteed, the labor cost is reduced, and the automatic production level is improved.

The utility model discloses a light electric two-wheeled vehicle of modularization drive, including vehicle overall frame, front wheel system and rear wheel system, the vehicle overall frame includes frame, seat cushion and pedal, the front wheel system includes front wheel set, front wheel shafting, front shock absorber system and front handlebar. A high-speed motor is used for speed reduction through a gear and power transmission through a constant velocity universal joint, and finally a belt speed reducer is used for driving a wheel set to rotate, so that modular power layout is achieved. Through the rearranged power unit, unsprung mass can be minimized. The suspension structure of the triangular double shock absorbers can reduce the number of components, the design of the shock absorption structure is simplified, and the reliability is improved. The upper half part of the universal coupling is fixed in the shell of the driving unit, the lower half sliding part of the universal coupling is positioned below the damping system spring, and the motor is fixedly mounted through the expansion joint of the universal coupling, so that the power unit does not move along with the suspension.

The application provides a vehicle and a control method, device and readable storage medium thereof. The control method comprises: obtaining pedal stepping data when a current state of the vehicle meets a belt speed starting condition; determining a target rotating speed of a motor according to the pedal stepping data; adjusting a running rotating speed of the motor based on speed loop control; and switching a control mode of the motor from the speed loop to a current loop based on the running rotating speed and the target rotating speed meeting a first condition.

A belt conveyor system based on dynamic coal quantity data, which uses the detected current dynamic load q of coal accumulated on the current belt conveyor. 实本 The bulk density of the coal is calculated from the dynamic volume information of this level; based on the detected dynamic volume information of the coal on the next lower-level belt conveyor and the bulk density, the current dynamic load q of the coal arriving on the next lower-level belt conveyor is calculated. 实下 Calculate the real-time dynamic load q on the belt of this level of belt conveyor. 动本 The real-time dynamic load q 动本 With the rated q of this level of belt conveyor G By comparison, a corresponding dynamic acceleration value 'a' is selected to control the output acceleration curve of the variable frequency speed control drive device, so that the belt conveyor gradually accelerates from a stationary state to the rated belt speed. This application also provides a belt conveyor group conveying method based on dynamic coal quantity data.