21results about How to "Accurate speed control" patented technology

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 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 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 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 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 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 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.

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 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.

The utility model provides an electronic speed regulation rotating handle and a vehicle. The electronic speed regulation rotating handle is arranged on a handle pipe and comprises a rotating handle operation assembly, a rotating handle support assembly and a connecting line, and the rotating handle operation assembly comprises a handle leather rotor capable of rotating around a center shaft of the handle pipe and a permanent magnet arranged on the handle leather rotor; the rotating handle support assembly comprises a support structure and a speed regulation signal generation circuit board fixed in the support structure, the speed regulation signal generation circuit board is integrated with a Hall element, and the Hall element is located in the induction range of the permanent magnet and used for inducing magnetic field changes caused by rotation of the permanent magnet and generating corresponding speed regulation signals; the connecting line comprises a power line and a ground line. The power line is connected with the controller and the speed regulation signal generation circuit board; the ground wire is connected with the speed regulation signal generation circuit board and the controller. According to the scheme, the problems that an existing speed regulation rotating handle is complex in circuit, high in cost, difficult in fault detection and the like are solved.

The utility model discloses a concrete spreader for a high-speed rail, which relates to the technical field of material distribution and comprises a movable rack, a material distribution hopper is arranged on the rack, a partition plate in the hopper divides the material distribution hopper into two material storage chambers and is correspondingly provided with a first discharge port and a second discharge port, and a first discharge slide way and a second discharge slide way are detachably mounted on two sides of the rack and are respectively connected with the two discharge ports to realize independent discharge. The rack is provided with a mixed discharge port below the distribution hopper, and a third discharge slide way is arranged at the position corresponding to the first discharge port and the second discharge port, so that materials at the two discharge ports can be guided to the mixed discharge port, and mixed discharge is realized. According to the distributing machine, through partition plate partitioned storage and multi-discharging-port design, concrete in different cavities can be independently discharged, mixed discharging of two kinds of concrete can be achieved, various distributing requirements in high-speed rail construction are met, the detachable discharging sliding way is convenient to install and maintain, the equipment using flexibility and the construction efficiency are improved, and the practicability is high. And an efficient and convenient material distribution solution is provided for high-speed rail concrete construction.

The utility model relates to circuit test technical field discloses alternating current turnout control test test appearance, including power module for power supply, inverter module is connected with power module electricity and is used for inverting direct current voltage into alternating voltage, control module, with inverter module electricity connection, acquisition module is connected with control module electricity, and acquisition module includes 5 voltage acquisition channels and 5 current acquisition channels, and voltage acquisition channel and current acquisition channel all are connected with acquisition probe. The utility model, through power module replaces generator drive alternating current switch machine, can make this test appearance to use for a long time continuously, carries out wiring inspection to three -phase five -wire system turnout wiring by control module, to ensure that this test appearance normal work, and further monitor the positioning of turnout, anti -position and four open different positions, solved the inconvenient problem of testing to alternating current turnout.

The application provides a control method and device for improving a heating cycle of an air conditioner and the air conditioner. The method comprises the following steps: detecting whether the exhaust temperature is less than or equal to an exhaust temperature threshold value when the air conditioner is in a heating operation; if the exhaust temperature is less than or equal to the exhaust temperature threshold value, detecting whether the outer disc temperature is less than or equal to zero; if the outer disc temperature is less than or equal to zero, detecting whether the difference between the current value of the outer disc temperature and the historical value before a preset time length is greater than a difference threshold value; if the difference is greater than the difference threshold value, adjusting the rotating speed of the outer machine according to the inner disc temperature; and the rotating speed of the outer machine is negatively correlated with the inner disc temperature. The embodiment of the application can adjust the rotating speed of the outer machine in real time based on the exhaust temperature, the outer disc temperature and the inner disc temperature, and only adjusts the rotating speed of the outer machine when the above parameters meet the conditions, so as to weaken the frosting of the heat exchanger, prolong the heating cycle, avoid repeated defrosting and improve the comfort of the room.

The application relates to the technical field of environment-friendly regenerated material production equipment, in particular to an environment-friendly regenerated material double-screw extruder and method, which comprises a feeding driving mechanism, a feeding extruding mechanism, a mixing driving mechanism and a mixing extruding mechanism. The feeding driving mechanism is used for driving the feeding extruding mechanism, the mixing driving mechanism is used for driving the mixing extruding mechanism, the feeding extruding mechanism is used for feeding materials, the feeding extruding mechanism comprises a feeding tank body, a feeding fixing support, a feeding main screw, a feeding driven screw and a feeding connecting seat, both ends of the feeding tank body are respectively provided with a feeding port and a discharging port, and the discharging port is used for connecting the mixing extruding mechanism. The feeding main screw in the grinding channel and the feeding driven screw work cooperatively, not only realizing the stable conveying of the materials from the feeding port to the discharging port, but also efficiently grinding the materials in the conveying process, which is helpful to improving the dispersivity and uniformity of the materials.

This utility model relates to the field of polishing module technology and discloses a multifunctional electric polishing module, including a robotic arm fixing rod. A motor bracket is mounted on the robotic arm fixing rod, and a dual-head motor and a single-head motor are mounted on the motor bracket. A grinding eccentric shaft is mounted on the dual-head motor, and a square grinding head is mounted on the single-head motor. This utility model is applicable to various industrial fields, utilizing modular design to ensure functional versatility. It is particularly suitable for the field of robotic polishing, performing polishing of various products and achieving one-time polishing. By changing different sizes and types of grinding heads, seamless switching can be achieved, expanding the application range and improving production efficiency. The grinding head speed can be precisely controlled and kept constant according to the processing technology of different products, ensuring a constant grinding linear speed during polishing and improving product polishing yield. Furthermore, different grinding heads can be installed according to different process requirements, enabling rapid switching between product polishing processes.

This utility model belongs to the field of reduction gearboxes, specifically relating to an automated detection device for the output shaft of a reduction gearbox. The device includes a worktable, a turntable, multiple carriers, an output shaft height detection mechanism, and an output shaft torque detection mechanism. The multiple carriers are distributed circumferentially along the turntable and are used to transport the output shaft of the reduction gearbox to be tested. The output shaft torque detection mechanism includes a support plate, a sliding plate, a servo motor, a torque sensor, a sleeve, and a clamping mechanism. A first cylinder is provided on the support plate to drive the sliding plate to slide longitudinally back and forth. The bottom of the sleeve is provided with a groove that mates with the upper end of the output shaft. The clamping mechanism applies an axial clamping force to the bearing on the output shaft during torque detection, pressing the bearing firmly onto the carrier. Through the cooperation of the turntable and multiple carriers, continuous rotation and automatic positioning of the output shaft are achieved. Height detection and torque detection are integrated into the same device, significantly improving detection efficiency and reducing manual intervention and workpiece handling time.

This invention discloses a servo motor speed control method and apparatus based on predictive model optimization, relating to the field of motor control technology. The method includes: acquiring gradient data by collecting servo motor operating state data at a high sampling rate using an electrical power device; analyzing the gradient data using a pre-trained predictive model to obtain peak gradient data; outputting a predicted transient adhesion resistance value of the servo motor based on the peak data and a dynamic detection threshold; inputting the predicted resistance value into a feedforward controller to generate a feedforward control command containing a compensation torque; monitoring the servo motor's operating state and adjusting the input parameters of the PID controller according to the operating state using a fuzzy algorithm to output an initial control command; and combining the feedforward control command and the initial control command to generate a speed control command. Through the organic combination of feedforward and feedback, the servo motor can achieve faster, smoother, and more precise speed control under high speed, high load, and complex operating conditions.

The utility model discloses a detachable hoisting stirring device, which integrates the functions of a stirring device and a material hopper into a whole, so that a mixture can be conveyed to a specified pouring area while being stirred, and the material stirring efficiency is improved by optimizing the structure between a stirring blade and a stirring arm. According to the technical scheme, the device comprises a stirring barrel, a stirring shaft, a sealing device, a supporting device, a discharging device and a hoisting device, the two stirring shafts are arranged in the stirring barrel; the stirring arm is fixedly arranged on the stirring shaft; the stirring blade is mounted on the stirring arm, and the mounting angle between the stirring blade and the stirring arm is 45 degrees; the sealing devices are mounted at two ends of the stirring shaft; the supporting devices are mounted at the two ends of the mixing drum; the discharging device is arranged below the stirring barrel, and a discharging opening is formed in the lower portion of the stirring barrel; and the hoisting devices are mounted at two ends of the mixing drum.

The present application relates to a kind of RAT overrunning test device and test method, belong to aviation emergency energy technical field, RAT overrunning test device is mainly composed of cabin pressure control module, test cabin module, RAT performance test module, hydraulic source module, motor etc..Wherein the RAT of test piece is fixed to test cabin module by mounting bracket, test cabin is evacuated by cabin pressure control module before test, hydraulic source provides high-pressure oil source for motor, motor provides driving power for RAT, motor is integrated with speed sensor, sensor signal is shown on hydraulic source module, can be controlled test piece speed in real time, overrunning process is tested RAT performance by performance test module.

The invention provides equipment for preparing a wear-resistant coating on the inner wall of a special-shaped flow channel of a deep sea valve, and belongs to the technical field of valve preparation equipment.The equipment comprises a rack, a rotating frame, a left clamping plate, a right clamping plate, a left spraying assembly, a right spraying assembly and a first driving assembly, a left vertical plate and a right vertical plate are arranged on the rack, and the rotating frame is rotationally connected with the right vertical plate through a connecting sleeve; the connecting sleeve is rotationally connected with the left vertical plate and is connected with a driven gear; the first driving assembly comprises a driving gear meshed with the driven gear, the left clamping plate and the right clamping plate are oppositely arranged in a sliding mode in the axial direction of the rotating frame and are both connected with a second driving assembly, the left spraying assembly and the right spraying assembly each comprise a transverse moving module and a vertical moving module, and a spraying gun is arranged on each vertical moving module. The double spraying assemblies special for the valve deck special-shaped segmented flow channel are arranged, full-segmented automatic continuous spraying of the special-shaped flow channel can be achieved, the industrial defects that spraying of the special-shaped flow channel is not uniform and spraying of internal corners is omitted are thoroughly overcome, and the thickness uniformity and coverage integrity of a coating are guaranteed.