46results about How to "Realize start and stop" patented technology

The invention relates to the technical field of liquid coating preparation equipment, particularly to a dissolving apparatus for reciprocating shaking type coating material processing. According to the dissolving apparatus, a servo motor is used as driving force, a rotating shaft 1 is driven to rotate through gear transmission, an inner threaded pipe is driven to rotate through worm wheel worm rodtransmission, and a rotating shaft 3 is driven to rotate through gear transmission, such that the inner threaded pipe 1 and the rotating shaft 3 drive a stirring rod to perform multiple stirring on acoating material in a dissolving box so as to accelerate the dissolving of the coating material. According to the present invention, the apparatus uses the transmission type design, uses the servo motor as the driving force to achieve the stirring of the coating material in the dissolving box, and can rapidly prepare the coating material with high uniformity by combining the moving left and rightof the dissolving box and the sucking and discharging effect of the piston chamber.

The invention discloses a double speed motor soft starting circuit. A power source is connected with a soft starter which is connected with a motor through a power supply circuit provided with a contactor KM1, the soft starter and the motor are in star connection through a circuit provided with a contactor KM3 and a power supply line, and the soft starter and the motor are in triangular connection through a circuit provided with a contactor KM2 and the power supply line. The double speed motor soft starting circuit comprises two start-stop command terminals which control a high-speed state and a low-speed state of the motor respectively, a complex secondary connection loop is not needed, complete program control is adopted, and safety and reliability are achieved; a program has two sets of different setting parameters which correspond to the high-speed state and the low-speed state of the motor respectively, start and stop of motors of different powers can be achieved, and a soft stop function of the motors can be achieved.

The invention discloses a full-automatic motor stator assembly production line, and belongs to the technical field of motor production. The production line comprises a rack, and a carrying plate usedfor carrying a motor shell and a motor stator is connected to the rack in a sliding mode. A positioning mandrel used for fixing the motor stator is inserted into the carrying plate; and the rack is further connected with a driving assembly for driving the carrying plate to move. A pre-shaping assembly, a wire cutting assembly used for cutting off redundant copper wires, a welding assembly, a corepulling assembly, a heating assembly, a gluing assembly and an assembling assembly are sequentially arranged in the sliding direction of the carrying plate. The pre-shaping assembly, the wire shearingassembly, the welding assembly, the core pulling assembly, the heating assembly, the gluing assembly and the assembling assembly are all connected with the rack, and the effect of improving the production efficiency is achieved.

The invention relates to an electrical control device and method for a pressure oil pump. The electrical control device comprises a primary loop and a secondary loop. The primary loop comprises a circuit breaker QF01, a phase sequence protection device KVS, a positive sequence contactor KM02, a reverse sequence contactor KM03, a main contactor KM00, a bypass contactor KM01 and a soft starter RQ; and the secondary loop comprises a start button SB01, a stop button SB02, a loading button SB03, an unloading button SB04, a pump-starting relay K01, a pump-stopping relay K00, a loading relay K02, anunloading relay K03, a positive sequence contactor KM02, a reverse sequence contactor KM03, a loading valve 1EV, an unloading valve 2EV, a start-stop switching handle SW1, a loading-unloading switching handle SW2 and a control cabinet fault point relay K06. According to the electrical control device and method for the pressure oil pump, the control mode for the pressure oil pump of a speed regulator oil pressure device is technically optimized and studied so as to improve the operation reliability of the pressure oil pump.

The invention provides an impeller type aerator. The impeller type aerator includes a first motor, an impeller, connection rods, and floating bodies; first ends of the connection rods are fixedly connected to the first motor; second ends of the connection rods are fixedly connected to the floating bodies; an output shaft of the first motor is fixedly connected to the impeller; the impeller type aerator includes a first drainage ring and drainage units; each drainage unit include a drive device and a second drainage ring, a fixing end of the drive device is connected to the corresponding connection rod, the second drainage ring is slidingly connected to an output end of the drive device in the axial direction of the second drainage ring, and the first drainage ring is fixedly connected to the output end; the first drainage ring and the second drainage ring have the same structure; the second drainage ring extends outward in the axial direction and is provided with a partition plate; and the first drainage ring and the second drainage ring are positioned under the impeller. The impeller type aerator can adjust the depth of oxygenation.

The invention discloses a system and a method for testing the performance of a blowdown ionization desalination membrane stack of a steam generator. An outlet sampling pipeline of a raw water tank isconnected with a cation exchange bed; a water inlet pump is arranged between the outlet of the cation exchange bed and the ionization desalination membrane stack; fresh water and concentrated water respectively flow from an outlet of the ionization desalination membrane stack; the fresh water at the outlet of the ionization desalination membrane stack flows back to the raw water tank through a return pipeline, and the concentrated water at the outlet of the ionization desalination membrane stack can be discharged according to test requirements or flows back to the raw water tank through the return pipeline; a dosing pump is arranged on the return pipeline; and a pressure relief valve is arranged on an inlet pipeline of the ionization desalination membrane stack to prevent overpressure of inflow water of the ionization desalination membrane. The testing system provided by the invention can provide a stable test medium according to the requirements of water quality, flow and temperature,and flexibly adjust the recovery rate of the ionization desalination membrane stack; and the water quality change trend of a loop and the balance state of the membrane stack can be accurately obtained without offline or online ion chromatographic measurement.

The invention discloses a water dispenser for triggering a lighting device based on size change of a water outlet. The water dispenser structurally comprises a smart seat, a water dispenser body, a water outlet control button, a lighting device protection cover, a water receiving tray and a box door. The water dispenser is provided with the lighting device and improves the shortcomings of a traditional water dispenser when the traditional water dispenser is used at night or in darker environments, the water dispenser solves the shortcomings of the traditional water dispenser and effectively optimizes on-off operations of the lighting device, so the water resources of the water dispenser is effectively utilized, use safety of the water dispenser is improved, on-off of the lighting device can be controlled according to water receiving conditions, and the lighting device has the advantages that energy is saved, and environments are protected.

The invention discloses a tricycle driving system with low failure rate, which comprises a motor on a tricycle frame and a driver for controlling the motor to drive, the motor comprises an encoder arranged on a motor shaft, and the encoder is in communication connection with the driver. The encoder sends a detected rotor position signal to a driver, and the driver performs sine wave driving control on the motor based on the rotor position signal; and according to the invention, the failure rate is obviously reduced, and the driving precision can be obviously improved.

The invention discloses a forklift steering system. The forklift steering system comprises a forklift frame, a pair of driving wheels, a pair of support wheels and a steering device, wherein a cross beam and a longitudinal beam are arranged in the middle of the forklift frame in an intersected manner; the driving wheels are arranged at the two sides of one end of the forklift frame, and the driving wheels are connected with a driving motor; the support wheels are arranged at the two sides of the other end of the forklift frame; and one end of the steering device is connected with the cross beam or the longitudinal beam, and the other end of the steering device is connected with the driving wheels or the support wheels. By connecting one end of the steering device with the cross beam or thelongitudinal beam and connecting the other end of the steering device with the driving wheels or the support wheels, multi-angle steering control is realized; by arranging an auxiliary steering wheelin the center of the forklift frame, the flexible steering of the steering device is realized, and the in-situ 360-degree rotating and the leftward and rightward diagonal movement of the forklift frame are realized; by arranging ultrasonic sensors at the front end and the two sides of the forklift frame, the obstacle avoidance of a forklift and the speed regulation, starting and stopping of the driving motor are realized; and shock absorbers are favorable to reducing the vibration of the forklift frame during running and ensuring the goods stability of the forklift. The forklift steering system is suitable for narrow working space.

The invention discloses a thermal power plant 0 class load power supply system and control method. The system comprises an energy storage device, an AC uninterrupted power load low-voltage power distribution device, an AC security load low-voltage power distribution device, and a DC security load DC power distribution device. The AC uninterrupted power load low-voltage power distribution device, the AC security load low-voltage power distribution device and the DC security load DC power distribution device are internally provided with an AC uninterrupted power load bus, an AC security load busand a DC security load bus respectively. The energy storage device is connected to the AC uninterrupted power load bus, the AC security load bus and the DC security load bus through a first switch, asecond switch and a third switch. The AC uninterrupted power load bus is also connected to a first power supply for a thermal power plant power through a fourth switch, and the AC security load bus is also connected to a second power supply for the thermal power plant power through a fifth switch. The system is intensively streamlined, compared with a conventional method, fully static equipment improves the reliability of a 0 class load power supply of the thermal power plant, the power supply quality is improved, and pollutant emissions are reduced.

The invention provides a modular integrated type hydraulic generating set. The modular integrated type hydraulic generating set comprises a closed type hydraulic pump module (1), a pipeline accessory(2), a hydraulic motor (3), a generator (4) and a heat exchange oil tank module (5); the closed type hydraulic pump module (1) is integrated with elements such as a hydraulic pump, an oil replenishingpump, a pressure control valve and a flush valve unit; the heat exchange oil tank module (5) comprises an electronic fan, an oil cooler and a filter; the closed type hydraulic pump module (1) provides pressure oil for driving the hydraulic motor (3); the hydraulic motor (3) is used for driving the generator (4) to generate electricity by virtue of splined connection; the hydraulic motor (3) is integrated with the input end of the generator (4) by virtue of splined connection; the hydraulic pump is connected with the hydraulic motor by virtue of a control pipeline; and the hydraulic pump is used for driving the hydraulic motor to realize electricity generation of the generator. The modular integrated type hydraulic generating set provided by the invention simplifies the connection of pipelines, reduces the installation space, reduces leakage caused by pipeline joints, reduces the weight of the system and improves the reliability of the system.

The invention discloses a visual monitoring and shooting system and method for overhead line video, and the system comprises a monitoring and shooting device which is used for collecting the video information of an overhead line, processing the video information obtained in haze weather to measure the distance from a hidden danger object, and giving an alarm when the distance exceeds a safety threshold value; a power supply module, which comprises at least one charging circuit, wherein a preset number of charging management chips which are connected in parallel are connected to each charging circuit in series, and the charging management chips are connected with a microcontroller; the microcontroller is used for controlling the start and stop of the corresponding charging management chip according to the current temperature of the charging management chip so as to realize the time-sharing heat dissipation of the charging management chip; the charging circuit is connected with the input end of the super capacitor or the battery, and the output ends of the super capacitor and the battery are connected to the standby power supply gating circuit; and the standby power supply gating circuit is used for controlling a super capacitor or a battery to supply power to a post-stage circuit.

The invention discloses a shower with a hydrogen generation function. The shower comprises a shower body and a battery, wherein the shower body comprises a handle, a shower head and an electrolytic bath assembly; wherein the handle and the shower head are in sealed connection; the handle is provided with a first cavity; the electrolytic bath assembly is arranged in the first cavity and is connected between the water inlet end of the handle and the shower head; the battery is connected to the shower head and is in conductive connection with the electrolytic bath assembly through the shower head, water directly enters the electrolytic bath assembly from the water inlet end of the handle, the electrolytic bath assembly electrolyzes the water to generate hydrogen, and the hydrogen is sprayed out from the water outlet end of the shower head along with the water. The electrolytic bath assembly is arranged in the shower body, the battery supplies power to the electrolytic bath assembly, wateris electrolyzed through the electrolytic bath assembly to prepare hydrogen, and convenience, sanitation, safety and reliability are achieved.

An indoor autonomous ventilation linkage system of a transformer substation relates to the technical field of transformer substation equipment maintenance, and is characterized in that a fan power supply air switch is connected with an automatic-manual change-over switch, the automatic-manual change-over switch is connected with a fan controller, and the fan controller is connected with a fan; the fan controller is further connected with an SF6 concentration sensor, an oxygen concentration sensor and a temperature and humidity sensor. The method has the beneficial effects that a plurality of control parameters are accessed to the fan controller to realize the start and stop of the axial flow fan, so that the automatic control of indoor environmental factors of the transformer substation is realized, and the requirements of unattended operation and safe operation of equipment are met. Manpower and material resources in the aspect of operation and maintenance are greatly reduced and saved, potential safety hazards of field work of operation and maintenance personnel are eliminated, the working efficiency of the field work of the operation and maintenance personnel is improved, safe and stable operation of equipment is guaranteed, and the normal service life of the equipment is guaranteed.

The invention relates to the technical field of power equipment, and especially relates to an European box-type substation. The European box-type substation comprises an outer box body, a thermoelectric power generation chip, and a power device and a blowing device which are arranged in the outer box body, wherein one surface of the thermoelectric power generation chip is connected with the surface of the power device, and the other end of the thermoelectric power generation chip is connected with the outer box body; the outer box body is made of a heat dissipation material; the output end ofthe thermoelectric power generation chip is connected with the power supply end of the blowing device; and the outer box body is provided with a plurality of heat dissipation holes. The thermoelectric power generation chip is used to convert heat generated by the power device into electric energy used for supplying power to the blowing device, so that an energy-saving effect is achieved; and meanwhile, the thermoelectric power generation chip can generate enough power to start the blowing device when the power device is heated seriously, and cannot generate enough power to start the blowing device when the power device is heated weakly, so that the blowing device is started and stopped by utilizing a simple circuit structure.

The invention discloses an intelligent combined shoebox and a control system thereof. The intelligent combined shoebox comprises a plurality of box bodies which are transversely arranged in sequence and/or vertically stacked in sequence; a shoebox cavity used for storing shoes is formed in each box body; a front panel of each box body is a box cover capable of opening the corresponding shoebox cavity; a microcontroller, a luminescent lamp and a sterilization and deodorization module are arranged in each shoebox cavity; and a communication module is connected to each microcontroller. The control system comprises a server and an intelligent terminal. The communication modules of all the box bodies in the combined shoebox are in communication connection with the server; each communication module is provided with a unique communication address used for communication connection, the intelligent terminal identifies and sorts each box body through the communication address, and the intelligent terminal is in communication connection with the server so as to monitor starting and stopping of the luminescent lamps and the sterilization and deodorization modules of all the box bodies in the combined shoebox. According to the combined shoebox, each shoe can be independently stored, sterilization and deodorization are achieved, lamplight of the shoebox can be used for illumination, and thedisplay effect of the shoes in the box bodies can be better reflected.

The invention discloses a speed regulation and reduction motor driving device and a driving method. The device comprises a motor coil; a motor start-stop control speed regulation circuit which is connected with the motor coil and is used for controlling the motor coil to start and stop; and a charging and discharging brake circuit which is connected with the motor coil and is used for providing direct current for the motor coil, so the motor coil is completely stopped. The speed regulation gear motor driving device is suitable for a speed regulation type gear motor with a speed ring, and motor starting can be achieved. In addition, a parking command of the single chip microcomputer can be responded in time through the charging and discharging brake circuit, the brake response of a motor coil is controlled within 1/16 circles, the brake efficiency is high, and the conditions of reverse rotation and unfixed brake response time are avoided.