85results about How to "Accurate speed control" patented technology

The invention discloses a silicone oil clutch fan control method and device. The method comprises the steps that an engine air inlet temperature signal, a fan actual rotating speed signal, an engine cooling water temperature signal, an engine torque signal and an engine rotating speed signal are obtained; according to the engine air inlet temperature signal and the fan actual rotating speed signal, the engine air inlet temperature and the fan actual rotating speed are determined; according to the engine torque signal, the engine rotating speed signal and the cooling water temperature signal, the fan duty ratio needed by water outlet temperature cooling is determined, and according to the air inlet temperature signal, the fan duty ratio needed by air temperature cooling is determined; and determining a target fan duty ratio according to the fan duty ratio required for water temperature cooling and the fan duty ratio required for temperature cooling, determining a target rotating speed according to the target fan duty ratio, and controlling the fan to be adjusted to the target rotating speed from the actual rotating speed of the fan. The problems that in the prior art, due to the fact that an electronic control silicone oil clutch fan is imperfect in control strategy, heat of an engine is prone to being accumulated, cooling is not timely, oil consumption is high, and the engine breaks down are solved.

A vertical gravity energy storage system control method based on a doubly-fed motor comprises the following steps: analyzing physical characteristics and a mathematical analysis model of a weight block of a gravity energy storage system in ascending and descending processes, and establishing a weight block speed given value function; according to the structure of the gravity energy storage system and the speed given value of the weight block, the rotating speed given value of the doubly-fed motor is calculated; according to the given rotating speed and the given reactive power of the doubly-fed motor, rotor side reference voltage is output to the doubly-fed motor, and the reference voltage is used for adjusting the rotating speed and the reactive power of the doubly-fed motor. The control algorithm is used for controlling the movement speed and the power generation power of the weight block, and the operation stability of the double-fed motor of the gravity energy storage system during frequent switching of various working conditions is improved.

The embodiment of the invention relates to a method and system for controlling the rotating speed of a cooling fan of a loader and a medium, and belongs to the technical field of cooling fans of loaders, the control method comprises the steps that the double-closed-loop control process of the rotating speed of the fan is executed, and the rotating speed of the fan is calculated through a PD calculation method; based on the rotating speed target value of the cooling fan, the actual hydraulic pressure value at the current moment and the actual hydraulic pressure values at the first two moments, an expected output current value at the current moment is obtained; calculating the expected voltage value of the electric control valve core at the current moment based on the expected output current value at the current moment, the actual output current value at the current moment, the actual output current value at the last moment and the target rotating speed value of the cooling fan by utilizing a PI calculation method; accurate control of the rotating speed of the fan is achieved, the hysteresis problem of a control valve element is avoided, and the rotating speed of the cooling fan is closer to the ideal target rotating speed.

The invention relates to the technical field of motor control, in particular to a control method and system for a motor. The method comprises the following steps that a motor main control unit MCU obtains a motor angle parameter by obtaining a corresponding target motor rotating speed set by a receiving user and carrying out angle parameter reverse solution endowing; obtaining a direct axis direction current and a cross axis direction current and carrying out motor load control calculation to obtain a direct axis voltage control quantity and a cross axis voltage control quantity; transmitting the motor angle parameter, the direct axis voltage control quantity and the cross axis voltage control quantity to a space vector pulse width modulation (SVPWM) module and carrying out SVPWM modulation processing to generate a motor rotor control SVPWM waveform; and determining a phase voltage control value applied to each motor winding, carrying out control duty ratio adjustment analysis, and controlling the corresponding rotating speed and direction of each motor at the same time. The operation efficiency and the response speed of the motor can be improved.

The invention discloses a predictive cruise control method, device and equipment and a storage medium, relates to the technical field of cruise control, and discloses a predictive cruise control method which comprises the steps that current gradient type information, target gradient storage information and a cruise set vehicle speed are obtained; determining a target cruise control strategy according to the current gradient type information; when the target cruise control strategy is a slope rushing control strategy or a downhill control strategy, a target vehicle speed deviation value and a deviation starting point are determined based on the target cruise control strategy according to the target slope storage information and the cruise set vehicle speed, and when the vehicle reaches the deviation starting point, the target vehicle speed deviation value and the deviation starting point are determined; and predictive cruise control is carried out on the vehicle based on the target vehicle speed deviation value and the cruise set vehicle speed, accurate control over the vehicle speed in the slope rushing or downhill process is achieved, and driving comfort and safety are improved.

The utility model provides a blending device convenient to operate, which relates to the technical field of blending devices, and comprises a blending box and a regulation and control mechanism, a sealing cover is arranged at the top end of the blending box, and through the arrangement of the regulation and control mechanism, an instruction is sent to an electronic controller through a wireless control unit. The current actual rotating speed data of the motor are obtained through the built-in Hall effect sensor, the controller compares and analyzes the actual rotating speed and the preset target rotating speed, the current control loop is automatically adjusted so as to indirectly regulate and control the running speed of the motor, and the electronic controller controls the current in the motor so as to control the running speed of the motor. The current sensor continuously monitors the change condition of the actual current in the motor coil to ensure that the motor can output the required torque according to the expectation and can also realize the dynamic adjustment of the rotating speed, so that the uniform mixing device can realize the uniform mixing according to the actual operation conditions and the specific requirements of the mixing task; and the rotating speed and the torque output of the motor are flexibly and accurately controlled.

The invention provides a frequency converter for a locomotive, a locomotive braking system and a control method thereof, and relates to the technical field of rail transit. The locomotive comprises a main air reservoir and a motor, the frequency converter for the locomotive comprises a pressure sensor, a control board card and a motor controller, and the pressure sensor at least partially extends into the main air reservoir and detects the pressure value in the main air reservoir; the control board card is connected with the pressure sensor, and the control board card can receive the pressure value and compare the pressure value with a pressure target value to form a comparison result; the control board card can send a control instruction according to the comparison result; the input end of the motor controller is connected with the control board card, the output end of the motor controller is connected with the motor, and the motor controller can receive the control instruction and adjust the output voltage and frequency of the motor controller according to the control instruction so as to control the rotating speed of the motor. The frequency converter for the locomotive can accurately control the pressure of the main air cylinder and improve the response speed and the stability of a brake system.

This invention provides a cup assembly for a food processor, including a cup body, a cup lid, and a processing component disposed within the cup body. It also includes a gearbox, which comprises a movably disposed clutch output shaft. When the clutch output shaft moves to a first position, it drives the processing component to output a first rotational speed; when the clutch output shaft moves to a second position, it drives the processing component to output a second rotational speed. The cup lid is installed in place, maintaining the clutch output shaft in either the first or second position. Furthermore, a food processor with the aforementioned cup assembly is provided. In the first position, the clutch output shaft outputs a first rotational speed to adapt to multi-functional cooking; in the second position, it outputs a second rotational speed to adapt to another multi-functional cooking method requiring a different speed. By changing the position of the clutch output shaft, the processing component can be replaced and the rotational speed can be automatically switched. Moreover, the output speed range is wide and the torque is high, avoiding stalling caused by high processing resistance.

The invention discloses a rotating speed control system for a fuel pump motor. The rotating speed control system comprises the fuel pump motor and a driving module, the fuel pump motor controller is used for acquiring a target rotating speed of the fuel pump motor body and outputting a driving pulse signal to the driving module according to the target rotating speed; the driving module is used for converting the driving pulse signal into a driving voltage signal when the driving pulse signal is at a high level, and sending the driving voltage signal to the fuel pump motor body, so that the fuel pump motor body works; the fuel pump motor controller is further used for receiving the rotating speed of the fuel pump motor body when the fuel pump motor body works and adjusting the duty ratio of the driving pulse signal sent to the driving module according to the rotating speed and the target rotating speed when the rotating speed is out of the preset motor rotating speed range of the target rotating speed. The rotating speed of the fuel pump motor body is within the preset motor rotating speed range of the target rotating speed. By means of the system, accurate control over the rotating speed of the fuel pump motor body is achieved.

The present invention provides a heavy-duty steel wire rope automatic release equipment, which belongs to the technical field of steel wire rope release, and includes a supporting release assembly, a steel wire rope drum frame, a supporting assembly and a cutting box. The supporting release assembly includes a supporting frame and a fixed plate. A fixing ring, an outer gear ring and a placement plate are arranged above the fixed plate. A variable frequency reduction motor is arranged on the inner side of the supporting frame. The variable frequency reduction motor is connected to a gear plate. The supporting assembly includes an operating table, and also includes: an intelligent control assembly, a limit assembly, a cooling assembly, a speed regulating assembly and a protective assembly. The invention has the following beneficial effects: by controlling the speed and direction of the variable frequency reduction motor, the release speed and length of the rope are adjusted to ensure the smoothness and safety of the rope release process, and to prevent entanglement and confusion during the rope release process. At the same time, the surface of the steel wire rope can be cooled and lubricated during the work process, so as to reduce the loss of the steel wire rope caused by friction, improve the working efficiency and safety, and save the use of resources.

The application provides a ramp-down vehicle speed control method, device, equipment and vehicle, and relates to the technical field of vehicle control. When the speed of the ego vehicle is less than the target speed limit in the ramp, the difference between the two is calculated, the expected driving distance matching the difference is obtained, then the difference between the distance of the ego vehicle from the speed limit point planned in the ramp and the expected driving distance is corrected based on the distance compensation coefficient, recorded as the first correction result, the difference between the speed of the ego vehicle and the target speed limit in the ramp is corrected by using the speed compensation coefficient, recorded as the second correction result, and the sum of the first correction result and the second correction result is taken as the ramp speed limit acceleration planning acceleration, the speed of the ego vehicle is controlled based on the acceleration until the speed of the ego vehicle reaches the target speed limit in the ramp. By this method, the speed of the vehicle in the ramp can be accurately controlled, so that the speed of the vehicle in the ramp is neither too fast nor too slow.

The invention relates to the technical field of pump bodies, in particular to a smooth pulsation device of a reciprocating pump, which comprises pump bodies, a plurality of groups of material output ports are arranged on one side of each pump body, a pump main shaft is rotatably connected in each pump body, the smooth pulsation device comprises an automatic control module, and the automatic control module is used for comparing the phase difference of the two pump bodies. The rotating speed is adjusted to enable the output of one set of pump bodies to be always kept at a peak value corresponding to the output peak valley of the other set of pump bodies, vibration of a pipeline system is reduced, the states of the pump bodies are adjusted according to conveying requirements, low-pressure small-flow liquid conveying is facilitated, high-pressure large-flow liquid conveying can be achieved, the phase difference of the two pump bodies can be compared, and the working efficiency is improved. Signals are fed back to the synchronous control cabinet to adjust the rotating speed, vibration of a pipeline system is reduced, and pulsation tends to be stable.

The utility model provides a lithium battery cap pressure welding device which comprises a workbench, moving blocks are connected to the left side and the right side of the bottom in the workbench in a sliding mode, a driving wheel is fixedly connected to the upper portion of the rear end of the workbench, and a fixed block is movably connected to the interior of the workbench. According to the pressure welding device for the lithium battery cap, by arranging a moving groove, a moving block, a first clamping plate, a driving wheel, a driven wheel, a sliding groove, a sliding block, a fixed block, a second clamping plate and other structures, the moving block achieves transverse movement of the first clamping plate through transmission of a first double-thread screw, clamping of a lithium battery is completed, and the driving wheel and the driven wheel transmit power stably through a transmission belt; a sliding groove, a sliding block and a fixing block are combined and matched with a second double-thread screw, a second clamping plate can clamp the middle of the lithium battery, the first clamping plate and the second clamping plate are in arc design and provided with an anti-skid pad, the appearance of the lithium battery is attached, friction force is enhanced, and the battery is prevented from being damaged and sliding.

The present invention provides a suction-type laryngoscope, comprising: a mirror handle; a laryngoscope blade, a plurality of first suction holes, which are symmetrically arranged on both sides of the laryngoscope blade; a plurality of second suction holes, which are arranged at the bottom of one end of the laryngoscope blade away from the mirror handle; a pair of first suction tubes, which are symmetrically arranged inside the laryngoscope blade; a plurality of second suction tubes, which are arranged inside the laryngoscope blade, and one end passes through the second suction hole and is flush with the second suction hole, and the other end is connected to the other end of the first suction tube; a plurality of connecting tubes, which correspond to the first suction holes one by one, and one end passes through the corresponding first suction hole, and the other end is connected to the corresponding first suction tube; a guide tube, one end of which is arranged in the laryngoscope blade and is connected to the other end of the first suction tube and the second suction tube, and the other end is arranged in the mirror handle; a storage box, which is arranged in the mirror handle and is connected to the other end of the guide tube. The present invention also provides a control method for a suction-type laryngoscope.

The utility model discloses a granulator in production line of production granular organic fertilizer, including granulator body, spray mechanism and dust removal mechanism, the granulator body includes disc and base, the top of base is fixed with the frame, the top of frame is fixed with bearing seat no.

The invention provides sock steam setting equipment which comprises a steam setting device, supporting plates, a closed rotating plate and supporting bases, the two supporting plates are fixedly arranged at the two ends of the steam setting device and the positions of the supporting plates on the two sides of the steam setting device, and the two supporting bases are fixedly arranged below the outer end faces of the supporting plates on the two sides of the steam setting device. According to the elastic degree of knitted socks, a worker can install an anti-skid rod on the side face of a sleeve rod, the effect of limiting movement of one end of each sock is achieved through an extending limiting rod, when the knitted socks made of different materials are shaped, the using amount and temperature of steam are adjusted according to parameters such as the materials and the thickness of the socks, and the shaping efficiency of the knitted socks made of different materials is improved. And in cooperation with the scheme, the rotating speed of the connecting rotary drum is accurately controlled, it is ensured that the socks are subjected to the uniform steam effect in the shaping process, and therefore the consistency of the shaping effect is improved.

The invention discloses a TRD chain cutter type underground diaphragm wall forming machine, and relates to the field of underground foundation construction. The transverse frame is mounted on one side of the carrying vehicle body; the longitudinal supporting frame is installed on the side, away from the carrying vehicle body, of the transverse frame in a sliding mode, and the longitudinal supporting frame can horizontally move in the length direction of the transverse frame; the transverse supporting frame is slidably mounted on the side, away from the transverse frame, of the longitudinal supporting frame; according to the TRD chain cutter type underground diaphragm wall forming machine, a longitudinal supporting frame, a transverse supporting frame and a TRD main machine are pushed to move to the position above a preset box through a transverse movement driving piece, at the moment, the transverse movement driving piece drives a displacement plate to transversely move, and due to the fact that a first positioning block is in inserted connection and limiting with a first sliding base and a transverse frame at the moment, relative displacement cannot occur between the first sliding base and the transverse frame; when the displacement plate is pushed by the transverse movement driving part to slide along the inner wall of the transverse frame, the transmission mechanism is matched with the wheel set mechanism to realize further displacement of the sliding seat II along the length direction of the displacement plate; the displacement distance of the second sliding seat is doubled.

The utility model discloses a kind of main shaft rotation driving mechanism of hardware machining machine, it includes fixed plate, is fixed on upper support frame;Several servo motors, install on fixed plate, and along the circumferential interval of fixed plate Around arrangement;Driving wheel, linkage in servo motor;Driven wheel, install above machining tool bit;Synchronous belt, connect between one driving wheel and at least one driven wheel, the utility model is installed multiple servo motors on fixed plate, each servo motor can individually drive respective driving wheel rotation, since including one driving wheel and at least one driven wheel in same synchronous belt wheel subassembly, equivalent to one servo motor can drive one or more driven wheel rotation, and the rotating speed of each servo motor can be individually adjusted according to demand, parameter adjustment is convenient, control precision, furthermore, synchronous belt does not slip in equipment operation process, stable operation can satisfy the high-speed operation of equipment, and practicality is strong.

The invention discloses an intelligent fan control method and system based on the Internet of Things and PWM speed regulation control. The intelligent fan control method comprises the steps that temperature and wind speed data are collected through a temperature controller installed on one side of a fan; uploading the collected data to an Internet of Things cloud platform, integrating the received data by the Internet of Things platform, and generating a fan rotating speed and temperature control instruction; after the temperature controller receives an instruction sent by the Internet of Things cloud platform, a corresponding PWM signal is generated through the PWM control module in combination with a self-adaptive adjustment mechanism, and the rotating speed of the fan is adjusted, so that accurate control over the temperature is achieved. The system efficiency is effectively improved, energy is saved, noise is reduced, accurate control over the rotating speed and temperature of the draught fan is achieved, the individual requirements of users are met, and the management efficiency is improved.

The present invention discloses a double-speed chain transmission device, a roller line scan detection system and a detection method, and belongs to the field of mechanical transmission and roller surface detection. The double-speed chain transmission device of the present invention includes a double-speed chain group and a sprocket. The roller in the double-speed chain group is installed on the roller pin shaft, and the double-speed chain group cooperates with the sprocket; it also includes a self-rotation drive mechanism, which includes a synchronous belt and a pulley arranged on the roller pin shaft. The pulley and the roller are relatively fixed. When the synchronous belt is running, the roller is driven to rotate by the pulley. Based on this device, the roller line scan detection system of the present invention can rotate the roller evenly on the roller surface, so that the surface defects of the roller can be detected by a line scan camera, which is helpful to improve product quality.

The application belongs to the technical field of high-voltage conductor surface microstructure preparation, and relates to a preparation device and a preparation method of an overhead high-voltage conductor surface microstructure. The device comprises a guide module, a stamping module and two winding modules. The guide module and the stamping module are arranged between the two winding modules, and the two winding modules are used for winding storage of the conductor before and after processing. The guide module is used for positioning the conductor at the same position as the axis of the stamping module, so as to facilitate the stamping of the conductor surface by the stamping module to process and form a surface microstructure. The wire after twisting is positioned and extruded by the guide module, the stamping module and the two winding modules, so that the microstructure is prepared on the wire surface. The surface microstructure can effectively improve the anti-icing performance of the surface coating of the overhead high-voltage conductor, thereby improving the stability of the power system.

The utility model discloses a small hydraulic iron notch drill which comprises an impact mechanism, a cylinder sleeve and a piston. The impact mechanism comprises a reversing valve, the reversing valve comprises a reversing valve seat and a reversing valve element, the reversing valve element is arranged in the reversing valve seat, the reversing valve element is fixedly connected with the reversing valve seat in a sealed mode, the reversing valve element is hollow, the reversing valve element is provided with a valve element oil inlet hole and a valve element oil outlet hole, and the valve element oil inlet hole is communicated with the valve element oil outlet hole. The reversing valve seat is provided with a valve seat oil inlet hole and a valve seat oil outlet hole, the valve seat oil inlet hole is communicated with the valve element oil inlet hole, the valve seat oil outlet hole is communicated with the valve element oil outlet hole, an oil cylinder sleeve oil inlet hole and a cylinder sleeve oil outlet hole are formed in the peripheral side of the cylinder sleeve, the valve element oil inlet hole is communicated with the cylinder sleeve oil inlet hole, and the valve element oil outlet hole is communicated with the cylinder sleeve oil outlet hole. And the valve core oil outlet hole is communicated with the cylinder sleeve oil outlet hole. The utility model solves the technical problems of large volume, complex structure and low and difficult operation efficiency for small blast furnace areas in the technical field of iron and steel smelting industry.

The invention relates to the technical field of agricultural product processing, in particular to an environment-friendly treatment system based on quinoa. Comprising a shelling bin, a first shelling roller, a second shelling roller, a first driving motor and a second driving motor; comprising a shell screening bin and a vibrating screen; the shell storage box is provided with a first electronic weight meter and a shell outlet door; the storage box is provided with a discharge valve; comprising an air inlet net, a caliber adjusting plate, a first filtering pipeline, a second filtering pipeline, a coarse dust filtering net, a particle collecting groove and a second electronic weight meter. Comprising a dust cleaning cavity, a dust cleaning wheel, a third driving motor, a fine dust filtering net, an air suction pipeline and an electric air suction pump. A data storage unit; and the control unit is used for judging whether the husking of the quinoa accords with a preset standard or not according to the husking characteristic value and judging whether the dust removal of the environment-friendly treatment system accords with the preset standard or not according to the particle accumulation rate. The quinoa husking efficiency and cleanliness are improved.

The utility model relates to a transmission device, in particular to a feeding tension adjustable transmission device of a roving frame. A tension-adjustable transmission device for a feeding system of a roving frame comprises a first belt wheel assembly, a second belt wheel assembly and a third belt wheel assembly, the first belt wheel assembly is connected with a motor, the first belt wheel assembly and the second belt wheel assembly are connected through a synchronous belt, and the second belt wheel assembly and the third belt wheel assembly are connected through a synchronous belt; the first belt wheel assembly, the second belt wheel assembly and the third belt wheel assembly are connected with the sliver guide roller through connecting assemblies. The first belt wheel assembly comprises a chain wheel, a fixed belt wheel, a check ring and an end cover. The chain wheel is connected to the fixed belt wheel, the fixed belt wheel is fixed in the check ring, and the end covers are connected to the two sides of the fixed belt wheel. According to the utility model, the rotating speed of the sliver guide roller is accurately controlled, the noise of equipment is reduced, and the product quality of subsequent procedures is ensured.

The present invention relates to the technical field of servo controllers, and in particular to a tension rod servo controller, comprising a power supply circuit, a main controller and a servo motor module, wherein the main controller is electrically connected to the power supply circuit and the servo motor module respectively, and the power supply circuit is provided to supply power to the main controller and the servo motor module, and can be used to filter out common mode interference, thereby ensuring stable operation of the main controller and improving the anti-interference ability of the main controller; by electrically connecting the main controller to the servo motor module, the rotation speed and rotation angle of each tension rod can be accurately controlled, the yarn control method can be improved, the yarn control accuracy can be improved, and a variety of patterned fabrics can be woven.

The utility model discloses a lithium ion battery roller testing machine, which belongs to the technical field of lithium ion battery inspection equipment and comprises a roller assembly, a driving assembly is arranged on the right side of the roller assembly, a roller frame assembly is arranged below the left section of the roller assembly, and a cover plate assembly is arranged on the left end face of the roller assembly. The cover plate assembly is arranged on a cover plate supporting table, and a sliding rail is arranged below the cover plate supporting table. According to the lithium ion battery roller testing machine provided by the utility model, the modular design of the roller assemblies is adopted, so that diversified simulation of complex terrains is realized; a stepless speed regulation motor is adopted, the rotating speed of the roller can be accurately controlled, and acceleration changes caused by different gradients or road conditions are simulated; according to the cover plate assembly, the cover plate can be quickly opened, closed and locked through cooperation of the sliding rails, the flanges and the buckle plates, the clamping process is simplified, and the testing efficiency is improved; the set screws and the multiple sets of flange-buckle plate structures form multiple locking, and the locking failure risk of a traditional mechanical locking mode is avoided.

The present invention relates to a mechanically controlled automatically detachable acceleration device, comprising: a driving motor, a coupling, a seat bearing, a ball spline shaft, a spline connecting shaft, a moving device, a rolling fork, a connecting disk, and a tire device; the driving motor is fixed on a motor seat, the output shaft of the driving motor is connected to the ball spline shaft through the coupling, the ball spline shaft is supported by the seat bearing and radially and axially positioned by a set screw, the spline connecting shaft is matched with the ball spline shaft, the moving device is fixed on a mounting seat and is fastened to a nut installed on the rolling fork by a ball screw, one end of the connecting disk is connected to the spline connecting shaft through a connecting flange, and the other end of the connecting disk is connected to the tire device; the present invention realizes rapid acceleration and separation of an experimental tire, and adopts a mechanical acceleration method that is safe, reliable, and efficient.

This invention discloses a general-purpose intelligent magnetic stirrer for chemical laboratories, belonging to the field of chemical laboratory technology. It includes: a constant current source circuit for providing a stable current to the speed control knobs; a microcontroller with a built-in ADC module that sequentially collects the resistance values ​​of each speed control knob via DMA and generates corresponding PWM waves based on the resistance values; a brushless DC motor whose speed is controlled by the PWM waves generated by the microcontroller, and whose speed feedback line is connected to the microcontroller through an isolation circuit to achieve PID closed-loop control; an aluminum alloy stirring platform equipped with eight independently operating motors and the speed control system; and a communication interface enabling a host computer to intelligently control the stirrer. This invention ensures more accurate collection of resistance values, thereby improving the accuracy of motor speed control. This accuracy is particularly important for experiments requiring long-term, continuous, and uniform stirring.

The application relates to the technical field of inorganic compound equipment, in particular to a rotary kiln system for producing vanadium pentoxide, which comprises a rotary kiln body, a supporting mechanism is arranged on one side of the rotary kiln body, a sealing mechanism is movably installed on one side of the rotary kiln body, and a gas conveying pipe is connected to one side of the sealing mechanism; the rotary kiln system can be stably supported by the positioning rod, the rotating drum, the nut and the rollers, the rotating drum is movably sleeved on the positioning rod and is fixed and positioned with the nut, the rollers are distributed in a circumferential array mode at the bottom of the rotary kiln body, the roller is in contact with the rotary kiln body, the rotation of the rotary kiln body is supported through rolling friction, and the resistance is greatly reduced compared with sliding friction. Meanwhile, the rotating drum is matched with the positioning rod to limit the axial displacement of the positioning ring, the convex block is combined with the clamping groove to limit the radial displacement, and the effect that the device can stably support the rotary kiln body to rotate, reduce the running resistance and improve the stability of the supporting structure is achieved.

The application discloses a kind of high-voltage motor automatic frequency conversion control device, it is related to motor control technical field.The application includes motor body, the top of motor body is provided with terminal box, and terminal box is connected with docking assembly, docking assembly top end is fixed with bottom heat dissipation piece, bottom heat dissipation piece outside is fixed with heat dissipation frame, heat dissipation frame top end is fixed with top heat dissipation piece, bottom heat dissipation piece one side is equipped with power supply assembly, and top end one side is provided with modulation board group and support frame, modulation board group adjacent side is provided with rectifier plate, top heat dissipation piece bottom is provided with inverter, support frame top end and top heat dissipation piece between fixed with output transformer group, support frame one side is provided with filter capacitor group.The application is integrated into heat dissipation frame by frequency conversion unit, and is connected with motor body, by bottom heat dissipation piece and top heat dissipation piece to each electric appliance is targeted heat dissipation, improves the accuracy of device adjustment speed and use stability.