76results about How to "Adjust the speed in real time" patented technology

The invention discloses a control method and device for a cooling water pump and a vehicle. The control method comprises the following steps that the driving motor temperature, the motor controller temperature and the temperature of cooling liquid at a water inflow opening of a driving motor are collected; according to the maximum value among the driving motor temperature, the motor controller temperature and the cooling liquid temperature and the target temperature, the temperature difference and the temperature difference change rate between the maximum value and the target temperature are obtained; and according to the preset fuzzy control rule as well as the temperature difference and the temperature difference change rate between the maximum value and the target temperature, the rotary speed of the cooling water pump is controlled. According to the control method, the rotary speed of the cooling water pump can be adjusted in real time to achieve the purpose of energy conservation, energy resources are saved, the endurance mileage of the vehicle is ensured, the control accuracy can be improved, and the reliability of the vehicle is improved.

The invention relates to a multi-coin sorting and packing device. The multi-coin sorting and packing device includes a coin entrance container, a coin layered transmission mechanism, a coin authenticity check and sorting mechanism, coin counting and packing mechanisms and a control module which is connected with the coin layered transmission mechanism and the coin counting and packing mechanisms, wherein the coin entrance container, the coin layered transmission mechanism, the coin authenticity check and sorting mechanism and the coin counting and packing mechanisms are sequentially arranged from top to bottom; the coin authenticity check and sorting mechanism includes a plurality of coin sorting slope channels which are arranged obliquely, strong magnets and counterfeit coin collection tubes; the tops of the coin sorting slope channels are aligned with the exit of the coin layered transmission mechanism; counterfeit coin attraction slot holes are formed at side walls at the middle portions of the coin sorting slope channels; the strong magnets are arranged at the outer sides of the counterfeit coin attraction slot holes; the counterfeit coin collection tubes are aligned with the counterfeit coin attraction slot holes; a plurality of sorting slot holes of which the widths are increased progressively are formed at the bottoms of the coin sorting slope channels, wherein the sorting slot holes are distributed from top to bottom along the oblique direction of the coin sorting slope channels; a plurality of coin counting and packing mechanisms are adopted; and the coin counting and packing mechanisms are aligned with the sorting slot holes in various sizes. Compared with the prior art, the multi-coin sorting and packing device of the invention has the advantages of high simplicity, low manufacture cost, high efficiency, convenience and the like.

The invention discloses a straw cutting speed and length adjustable cylinder cutter, belongs to the technical field of a straw resource utilization device, and is mainly used for rapidly and efficiently cutting a straw according to the required cutting length at the low power consumption. The cylinder cutter comprises a cylinder cutting device, a material pressing type feed device and a control display unit. The cylinder cutting device comprises a helical line type cutting moving blade, a horizontal cutting stationary blade and a rotating cylinder for installing the moving blade; the material pressing type feed device comprises an upper floating type material pressing roller, an upper fixing material pressing roller and a belt conveying platform; the cutting length is controlled through the belt conveying speed, and the cutting speed and the cutting efficiency are controlled through the belt conveying speed and the rotating speed of the rotating cylinder together. A controller acquires data through an acquisition test unit, the belt conveying speed and the rotating speed of the rotating cylinder are respectively controlled through calculation according to the set cutting length and the set cutting speed, and the straw is accurately efficiently cut at the low power consumption.

The invention discloses an intelligent control method of an engine cooling fan for engineering machinery, which is applied to a cooling system of which a fan is hydraulically driven. The cooling system comprises an engine electronic control module and a cooling system controller, wherein a hydraulically driven variable capacity pump is additionally arranged on a power output outlet of an engine; and the cooling system controller acquires a hydraulic oil temperature signal and a pressure switch signal of an air conditioner, and receives an air inlet temperature signal, a diesel oil particle filter regenerating state signal and a cooling liquid temperature signal to serve as control signals of cooling fan rotation speed, through a controller area network (CAN)-bus. If the control signals are abnormal, failure information is sent to a display screen to be displayed through the CAN-bus; and if the control signals are normal, the control signals are exchanged, processed and operated, the cooling system controller outputs a calculated pulse width modulation signal to adjust the current of a proportioning valve which is used for controlling the discharge capacity in the hydraulically driven variable capacity pump, so that the required discharge capacity is obtained, and the cooling fan reaches a required rotation speed.

The invention provides a mower and a control system thereof. The control system comprises a traveling motor driver, a mowing motor driver, a man-machine interaction module, a control switch, a batterymanagement system and a vehicle control unit, wherein the traveling motor driver drives a traveling motor and collects the working condition of the traveling motor and the own working condition; themowing motor driver drives a mowing motor and collects the working condition of the mowing motor and the own working condition; the traveling speed state of the mower is given by the control switch; the man-machine interaction module and the battery management system respectively acquire working parameters and the battery state of the mower; and the vehicle control unit controls and adjusts the speed of the mowing motor and the speed of the traveling motor according to the working parameters and the traveling speed state of the mower, the working state of the mowing motor, the working state ofthe traveling motor, the working state of the mowing motor driver, the working state of the traveling motor driver and the battery state. The working efficiency of the mower can be increased, and theservice life of a battery of the mower is prolonged.

The invention discloses a hydraulic actuator. The hydraulic actuator comprises a hydraulic cylinder assembly, a hydraulic system and a local closed-loop control system, wherein the hydraulic cylinder assembly comprises a single-action oil cylinder, a displacement sensor, an upper ear ring and a lower ear ring; the upper ear ring is in threaded connection with a piston; the displacement sensor is arranged on a lower end cover; a measuring rod of the displacement sensor passes through the lower end cover, and extends into the piston; a magnetic ring of the displacement sensor is arranged on the end part of the piston; the piston drives the magnetic ring to move in a way of extending and retracting; the specific position of the magnetic ring is sensed through a waveguide tube in the measuring rod, so that the absolute position of the piston is detected; the hydraulic system comprises a motor, a pump, two leakage-free reversing valves and a pressure sensor, and is used for providing hydraulic power for a hydraulic cylinder and controlling the flow; the closed-loop control system comprises a main circuit module, a power supply module, a sensor module group and a microprocessor module. The hydraulic actuator has the advantages of high positioning accuracy and low cost, accurate source changing, scanning, tracking and position keeping of the oil cylinder can be realized, and continuous and stable control of the actuator during low-speed running can be ensured.

The invention discloses an infrared detecting and positioning type automatic step speed adjustable running machine. The infrared detecting and positioning type automatic step speed adjustable running machine comprises a rack, a running belt, a motor, a control dial plate and an infrared receiving-transmitting device, wherein the rack comprises a base which is arranged transversely and a supporting frame which is arranged vertically; the running belt is tensioned and wound on the base; the motor is mounted at the front end of the base; the motor drives the running belt to rotate through a belt; the motor is further connected and provided with a motor speed adjuster; the control dial plate is arranged on the supporting frame and is connected with a single chip microcomputer; the single chip microcomputer is electrically connected with the motor speed adjuster; the infrared receiving-transmitting device comprises an infrared transmitting tube and an infrared receiving tube which are packed together, is arranged on the control dial plate, and is connected with the single chip microcomputer through a signal line. By virtue of the infrared detecting and positioning type automatic step speed adjustable running machine, the automatic speed adjustment of a caterpillar band of the running machine is realized, and a user can be prevented from falling off; and the running machine is convenient to use and has good stability and high stability.

The invention discloses an all-digital intelligent mobile septic tank sewage disposal device. The all-digital intelligent mobile septic tank sewage disposal device comprises an electrical control system, a stirring box, a flocculant tank, a sewage suction pipe and the like, and is characterized in that a cam pump is arranged on the sewage suction pipe, an outlet of the cam pump is communicated with the stirring box through a pipeline, the sewage suction pipe communicated with an inlet of the cam pump is communicated with the flocculant tank through the pipeline, the all-digital intelligent mobile septic tank sewage disposal device is provided with a squeezer and a conveyor, which are sequentially connected with the stirring box, a sewage discharge port of the stirring box is connected with a feed port of the squeezer through the pipeline, and a discharge port of the squeezer is connected with the conveyor. The all-digital intelligent mobile septic tank sewage disposal device disclosed by the invention can realize full-automatic operation and management through the electrical control system, has a plurality of advantages of simple structure, convenience in movement, low energy consumption, no pollution during the disposal process, short disposal time, great disposal capacity and the like, can solve the technical difficult problems of dehydration, deodorization and sterilization of sewage in a septic tank, as well as incapability of utilizing the sewage and further has very extensive practicality.

The invention belongs to the technical field of nucleic acid amplification instruments, and particularly relates to a fan module of a digital nucleic acid amplification instrument. The fan module comprises a fan module frame, heat sinks and cooling fins, wherein the fan module further comprises a variable speed fan, a temperature sensor, a temperature controller and a fan speed controller. The variable speed fan, the temperature sensor, the temperature controller and the fan speed controller are electrically connected to each other. The variable speed fan speed and the chip temperature have aone-to-one correspondence relationship. The variable speed fan speed can be adjusted in real time according to the chip temperature, so that the heat dissipation is fast and the heat dissipation process is controlled. The PID algorithm can be combined to accurately control the temperature, and the temperature overshoot is not prone to occur.

A motor-driven hydraulic power assisted steering pump comprises an electrical interface, a temperature sensor, an electronic control unit connected with the electrical interface and the temperature sensor, a driving circuit connected with the electronic control unit, a motor connected with the driving circuit and a gear pump connected with the motor. The electrical interface comprises a power source interface, an ignition signal input interface, a CAN (controller area network) bus interface and a steering angle speed signal input interface, the ignition signal input interface inputs ignition signals to the electronic control unit to control starting of the electronic control unit, the CAN bus interface provides traveling speed of an automobile, rotating speed of an engine and loading and updating information sent by an upper computer with loading software, and the steering angle speed signal input interface provides steering angle speed signals of the automobile in real time. The motor-driven hydraulic power assisted steering pump has the advantages that oil consumption is lowered, temperature compensation is realized, various modes can be configured to operate, and real-time fault detection and processing can be realized when the automobile travels.

A fan control circuit comprises a plurality of temperature detection units, a temperature comprehensive unit and a drive signal generation unit. The temperature detection units are used for detecting running temperatures of multiple heating elements in an electronic device respectively so as to correspondingly output multiple temperature detection signals. The temperature comprehensive unit is electrically connected to the multiple temperature detection units and used for working out an average-value temperature signal according to the temperature detection signals and multiple corresponding preset weighted values. The drive signal generation unit is electrically connected to the temperature comprehensive unit and used for generating a drive signal according to the average-value temperature signal output by the temperature comprehensive unit so as to drive a fan. According to the fan control circuit, the detected temperatures are worked out through the multiple temperature detection units and the corresponding weighted values, the duty ratio of the drive signal of the fan is regulated according to the detected temperatures, and therefore the rotating speed of the fan is regulated in real time, and electric power is saved.

The invention discloses a control method of a simulation massage robot. In the method, a corresponding three-dimensional pressure threshold is set by a programmable logic controller (PLC) and a motor is controlled by the PLC to drive a simulation wrist joint to drive a simulation palm to perform massaging actions by simulating massaging skills, the pressure values in X, Y and Z directions in the massaging process of the simulation palm are detected by a three-dimensional omnidirectional pressure sensor, and the rotation speed of the motor is adjusted in real time by the PLC and pressure threshold analysis and comparison, and thus, the massing actions can be regulated. The invention also discloses a simulation massage robot. When the simulation massage robot is used, various massaging skills can be simulated more in real time, and the overall requirements of traditional Chinese massaging on 'duration, effectiveness, uniformity and softness' are met.

The invention discloses a multi-path material discharger and an operation speed control method thereof. The multi-path material discharger comprises a machine case and a material guiding-out structure, wherein a material distributing structure and a plurality of material discharging passages are arranged in the machine case; the material distributing structure is controlled by a motor to operate;the material guiding-out structure comprises an intercepting unit, and the intercepting unit can be switched between an idle state and an intercepting state; in the idle state, the materials can falldown from the material discharging passages to be thrown to a target position; and in the intercepting state, the intercepting unit intercepts all of the material discharging passages and guides materials passing through the material discharging passages out of each material discharging passage. The intercepting unit is controlled to be switched to the intercepting state; the materials dischargedfrom the material discharging passages can be directly intercepted and guided out to be collected and metered in a unified mode; the circulation path of the materials is short; and the loss is little;and the calibration precision can be improved. The operation speed control method of the multi-path material discharger is based on the calibrated material discharging amount value; the rotating speed of the motor can be adjusted in real time; and agricultural materials can be uniformly spread.

The invention discloses a hydrogen energy source moped scooter which comprises a moped scooter body, a hydrogen fuel cell and a control system, wherein the hydrogen fuel cell is fixed in a middle portion of a frame of the moped scooter body; the hydrogen fuel cell comprises a hydrogen fuel cell casing as well as a hydrogen storage tank, a rechargeable battery, a hydrogen fuel cell reactor and a reactor controller which are arranged in the hydrogen fuel cell casing; the hydrogen storage tank communicates with a hydrogen gas inlet pipe of the hydrogen fuel cell reactor; the reactor controller controls the hydrogen fuel cell reactor to work and generate electrical energy; the hydrogen fuel cell reactor generates the electrical energy to power the control system and charge the rechargeable battery; the rechargeable battery provides a starting voltage for the control system, the hydrogen fuel cell reactor and the reactor controller; and the control system controls the moped scooter body andthe hydrogen fuel cell to work. According to the hydrogen energy source moped scooter, the hydrogen fuel cell is used as a power source of the moped scooter, so that the charging time is shortened, and the moped scooter is safe and environmentally-friendly, and can effectively realize green travel.

The invention discloses a round fresh air purifier installed on a glass window or a glass wall. The round fresh air purifier comprises a main equipment body installed on the inner side of the glass window or the inner side of a glass wall chamber; the main equipment body comprises a bottom disc fixed to the inner side of the glass window or the inner side of the glass wall chamber; one side of the bottom disc is provided with an outer rotor draught fan, rough-efficiency and medium-efficiency / high-efficiency filtering units fixed to the bottom disc, and a chemical pollutant adsorption unit; the other side of the bottom disc is provided with an installation part, and the installation part comprises an inner sleeve and an outer sleeve which are fixed to the bottom disc; the inner sleeve and the outer sleeve are connected through threads; an indoor fixing clamping plate and a folding outdoor fixing clamping plate are fixed to square holes in the glass window or the glass wall; a fresh air supplying channel is formed from the inner sleeve, a metal filtering screen, a fresh air adjusting valve, the outer rotor draught fan, the filtering units to an air supplying port; and an air returning channel is formed from an indoor air returning hole, the outer rotor draught fan, the filtering units to the air supplying port. According to the round fresh air purifier, the size is small, noise is low, a filtering core is easier to replace, and the round fresh air purifier has the functions of both an air purifier and a fresh air machine.

The invention discloses an intelligent control panel of a high-speed food processor.The intelligent control panel comprises a speed regulating rotary knob, a function selecting rotary knob, a start / stop button and a thumbing button.The speed regulating rotary knob controls a drive motor of the food processor to conduct stepless speed regulation.The speed regulation and function selection of the food processor are each arranged on one rotary knob, and therefore a user can conveniently and more precisely control the rotating speed of a blade and the running function of the food processor and can adjust the rotating speed of the drive motor in real time, and the stirring and smashing effect is effectively improved; all running function modes of the food processor are integrated on one function selecting rotary knob, the control panel is simpler and more user-friendly in design, and the user can conveniently select the running mode of the food processor according to different food materials; furthermore, on the premise that the food processor runs in a manual mode, the food processor runs in a manual inching mode, and the precise control over the smashing process is achieved; the technical problem that an existing food processor is not convenient to operate is solved.

The invention discloses a control system and method of a hydrogen energy booster. The system is characterized by including a central control system, a battery energy management system, an electric vehicle controller, a hydrogen fuel cell, left and right brake handles, an assisting power sensor and a motor. The central control system is in two-way signal electric connection with the electric vehicle controller. The battery energy management system is in two-way signal electric connection with the electric vehicle controller. The hydrogen fuel cell supplies power to the electric vehicle controller through the battery energy management system and to the central control system through the electric vehicle controller. The electric vehicle controller collects data of the assisting power sensor,and the left and right brake handles control the power off state of the motor through the electric vehicle controller.

The invention belongs to the technical field of steel ingot raw material processing application and particularly discloses an intelligent high-efficiency smashing device and a working method thereof. The intelligent high-efficiency smashing device is composed of a base, a material guide box, a smashing box, a feeding opening, a discharging opening, a motor mounting frame, a driving motor, a smashing assembly and a controller assembly. The material guide box is arranged on the base. The smashing box is arranged on the material guide box. The feeding opening is arranged in one side of the smashing box. The discharging opening is arranged in one side of the material guide box. The motor mounting frame is arranged on the smashing box. The driving motor is arranged on the motor mounting frame. The smashing assembly is connected with the driving motor. The controller assembly is arranged on the smashing box and located on the side where the feeding opening is located. According to the intelligent high-efficiency smashing device and the working method thereof, the controller controls double shafts to be capable of conducting an opposite-direction meshing operation mode according to needs, and the problems that a traditional smashing machine is low in smashing efficiency and poor in smashing quality are solved; during smashing operation, according to different raw materials to be smashed, the controller is used for controlling the rotating speed of the first smashing shaft and the rotating speed of the second smashing shaft according to information fed back by a first rotating speed sensor and a second rotating speed sensor, and thus the smashing quality and effect of the raw materials are improved.

The invention discloses an intelligent sling and a hanging method thereof. The intelligent sling comprises a plurality of sling devices, wherein each sling device comprises a base, a sling receiver, arope, a driving device, a control main machine, a tension meter and a sling detection system. The sling receivers are rotatably mounted on the bases, and the ropes are wound around the sling receiver. The driving devices rotate to drive the sling receivers to rotate, and the control main machines adjust the rotating speeds of the driving devices. The tension meters are used for detecting the tension of the end parts of the ropes, and the sling detection systems comprise supports, rotating speed measuring modules and pulleys. The supports are mounted on the bases, and the rotating speed measuring modules are used for detecting the rotating speed of the pulleys. The ropes abut against the circumferences of the pulleys and drive the pulleys to rotate through lifting. According to the intelligent sling, the lifting speed and the tension of the ropes are kept stable, the high-precision lifting requirement is met, the real-time condition of load can be accurately judged, and then the driving device is controlled to make a feedback action, so that the function of autonomously following a load motion track is achieved.

The invention provides a hub motor controller which is used for applying a hub brushless DC motor to a robot hub driving system. The hub motor controller comprises a control circuit and a three-phase driving bridge circuit and also comprises a Hall sensor, wherein the three-phase driving bridge circuit drives a brushless DC motor, a signal output end of the control circuit is in control connection with the three-phase driving bridge circuit, an acquisition signal input end of the Hall sensor is connected with the brushless DC motor, an acquisition signal output end of the Hall sensor is connected with the control circuit, the control circuit measures and calculates a rotor position of the brushless DC motor according to an acquisition result of the Hall sensor, the acquisition signal output end of the Hall sensor is connected to the control circuit through a speed closed-loop regulator, the speed closed-loop regulator is provided with a first input end, the first input end is used for setting a reference speed, an output end of the Hall sensor is connected with a second input end of the speed closed-loop regulator, and the control circuit controls and adjusts driving power output from the three-phase driving bridge circuit according to an output result of the speed closed-loop regulator so as to adjust a rotational speed of the brushless DC motor.

The invention provides a planetary magnetorheological transmission device based on a shear-extrusion effect, and belongs to the technical field of mechanical transmission. According to the planetary magnetorheological transmission device based on the shear extrusion effect, a driven outer cylinder is assembled between a left end cover and a right end cover, wherein a gear ring sleeve is assembledon the inner wall of the driven outer cylinder; an input shaft is rotationally connected with the left end cover and the right end cover through bearings; an output shaft is arranged on the outer side of the right end cover; a magnetic conduction sleeve is arranged on the input shaft; a planetary gear is arranged between the magnetic conduction sleeve and the gear ring sleeve; the planetary gearis meshed with outer teeth of the magnetic conduction sleeve and inner teeth of the gear ring sleeve; the two ends of the magnetic conduction sleeve and the two ends of the gear ring sleeve are sealedthrough sealing assemblies to form a closed space; the closed space is filled with magnetorheological fluid; a coil framework is arranged on the input shaft; a magnet exciting coil is arranged on thecoil framework; and the magnet exciting coil is electrically connected with an external power supply. The planetary magnetorheological transmission device has the beneficial effects that large-torquetransmission can be realized, transmission is uniform, the magnetorheological fluid is not influenced by centrifugal force, and real-time adjustment of torque and rotating speed can be realized.

The invention discloses a titanium dioxide coating system and method. The system includes: a titanium dioxide storage tank; first to third coating agent storage tanks; first to third discharge valves; a coating tank, which has a titanium dioxide inlet, The inlet of the coating agent and the outlet of titanium dioxide after coating; the density meter; the liquid level gauge; the stirring device, which includes a multi-layer stirring paddle and a frequency conversion governor, and the multi-layer stirring paddle is connected with the frequency conversion speed controller and is extended and arranged on the coating In the tank; among them, the frequency converter is respectively connected with the density meter, the liquid level gauge and the first to the third discharge valves, and the frequency converter is suitable for adjusting the rotation speed of the multi-layer stirring paddle according to the signals of the density meter and the liquid level gauge And the opening and closing of the first to third discharge valves. The system can adjust the speed of the stirring device in the coating tank in real time according to the concentration of titanium dioxide slurry, its liquid level in the coating tank and the addition of coating agent, so as to realize the coating of high-concentration titanium dioxide slurry Processing, and the product film layer is dense, uniform, and stable in quality.

A disclosed driving-resistance self-regulated furrow opener assembly suitable for a wheat medium-term deep fertilizing machine comprises a first sensor, a single-chip microcomputer control system, a storage battery, a driving motor, a furrow opener, an auger, a clutch lever, a second sensor, belt pulleys, a soil resistance test rod, a belt and meshed bevel gears; the storage battery and the driving motor are installed at the front end of a rack; the soil resistance test rod is installed at the left of the front end of the rack; the second sensor is installed between square steel and the soil resistance test rod; the clutch lever is installed below a fertilizer box; the clutch lever is provided with three pairs of the meshed bevel gears and the belt pulleys; the auger is installed below the clutch lever; and a furrow opener is installed at the rear end of the rack. The furrow opener assembly provided by the invention is free of pollution and small in noise; when soil hardening is severe, the resistance of the furrow opener during working is reduced, the damage to the furrow opener is reduced and the service life of the furrow opener is prolonged; and also the intelligent automatic regulating on the driving resistance is realized, proper torque is output by controlling the driving motor, excessively-large or excessively-small torque is avoided to output, and the furrow opener assembly is energy-saving and environment-friendly.

The invention discloses a hydraulic source load self-adaptive system and a self-adaptive control method. The hydraulic source load self-adaptive system comprises a controller, two pressure sensors, adirect-current synchronous motor, a check valve, an energy accumulator, an electro-hydraulic servo valve, an overflow valve, an electrically controlled reversing valve and an adjustable throttle valve. The pressure sensors are arranged at the two ends of the adjustable throttle valve. The input end of the controller is connected with the two pressure sensors. The output end of the controller is connected with the electro-hydraulic servo valve and the direct-current synchronous motor. The inlet end of the adjustable throttle valve is arranged between a gear pump outlet and the check valve. Theoutlet end of the adjustable throttle valve is arranged on the high-pressure side of the overflow valve. The low-pressure side of the overflow valve communicates with an oil tank through an oil way. The energy accumulator is arranged between the electrically controlled reversing valve and the check valve. The input end of the electro-hydraulic servo valve is connected with the electrically controlled reversing valve. The output end of the electro-hydraulic servo valve is connected with a load hydraulic cylinder. According to the hydraulic source load self-adaptive system and the self-adaptivecontrol method, output characteristics of a hydraulic system are matched with the load magnitude through pressure difference signal feedback, and power consumed by a hydraulic source can be controlledeffectively. The hydraulic source load self-adaptive system can be applied to a deep sea hydraulic source, and energy-saving control of the hydraulic source load self-adaptive system is achieved.

The invention belongs to the field of agricultural machinery, and particularly relates to a speed-adjustable asynchronous opposite-cutting type straw smashing device which comprises a rack assembly (1), a three-point suspension device (2), a gearbox (3), a transmission assembly (4), a comb rod pressing device (5), a smashing device (6), a stubble cleaning device (7), a speed changing device (8) and a smashing device assembly (9). According to the speed-adjustable asynchronous opposite-cutting type straw smashing device, the initial phase difference between a front smashing cutter and a rear smashing cutter is 170-190 degrees, the front smashing cutter and the rear smashing cutter are in an asynchronous staggered motion mode in the working process, the length of smashed straw is effectively reduced, and the smashing efficiency is improved. The speed-adjustable asynchronous opposite-cutting type straw smashing device is arranged in a bilateral symmetry mode, dynamic balance can be achieved in the working state, machine vibration is reduced, and a chain wheel set is arranged, so that different chain wheels can be replaced conveniently to achieve the speed changing effect.

The invention discloses method and equipment enabling an air compressor to achieve constant-pressure air supply. The method comprises the steps that the air compressor compresses and conveys out air;an air storage tank at the output end of the air compressor is connected to receive air compressed by the air compressor, and air is supplied to a user; a pressure sensor of the air storage tank is connected to detect air supply pressure in the air storage tank, and a pressure detection signal is output; a controller of the pressure sensor is connected, and a motor control signal is generated according to the difference value of a rated air pressure value P0 and pressure P1 of the pressure detection signal output by the pressure sensor; and a variable frequency motor connected between the controller and the air compressor controls rotation speed for driving the air compressor to work according to the motor control signal output by the controller, and thus the air compressor provides constant-pressure air for the user.

The invention provides a copper rod horizontal straightening and winding device. The copper rod horizontal straightening and winding device sequentially comprises a drawing assembly, a straightening assembly, a pressing and straightening assembly, a pre-winding device and a winding device in the advancing direction of a copper rod; the drawing assembly comprises a drawing die and spray pipes; andthe spray pipes are arranged on the upper side and the lower side of the drawing die; the straightening assembly comprises a first roller wheel and a second roller wheel; the pressing and straightening assembly comprises first pressing rollers and second pressing rollers; the pre-winding device comprises two pairs of clamping roller wheels and a bending roller wheel; and the winding device comprises a winding vehicle and a rail, the winding vehicle is movably fixed to the rail, a rotating disc and a fourth motor are arranged on the winding vehicle, the rotating disc is driven by the fourth motor to rotate, a frame body is arranged on the rotating disc, and annular containing grooves are formed in the periphery of the frame body. According to the copper rod horizontal straightening and winding device, the deformed copper rod is fully straightened through cooperation of the drawing assembly, the straightening assembly and the pressing and straightening assembly, the copper rod has a certain curvature through the pre-winding device, the copper rod is in a free state during winding, and machining of downstream enterprises is facilitated.

The invention discloses a pipeline pressure measuring device which is simple in structure and capable of measuring pipeline pressure in real time, an energy-saving stove very good in energy-saving effect and an energy-saving stove system which can save a large amount of gas and guarantee the best fuel air ratio of the stove. The pressure measuring device comprises a thin film layer and a pressure sensor. The thin film layer divides the pressure measuring device into tow spaces to allow the peripheral pressure sensor to be separated from media in the pipeline so as to prevent the media from corroding and blocking the sensor. Pressure variation information in the pipeline is obtained through thin film layer deformation and signal transmission of the sensor. The energy saving stove comprises the pressure measuring device, a fan and a stove body. Rotating speed of the fan is adjusted according to pipeline pressure variation measured by the measuring device so as to the best fuel air ratio of the stove. The stove system guarantees that each operating stove has the best fuel air ratio and better energy-saving and environment-friendly effect. The pipeline pressure measuring device, the energy-saving stove and the energy-saving stove system are applicable to the field of energy-saving stoves.

The invention relates to a marine pressurized water reactor circulating water system with flow rate control function, and a flow rate control method thereof. The system comprises: a condenser and a circulating water pump connected to the condenser; a vacuum pressure transmitter and a temperature transmitter, wherein the vacuum pressure transmitter and the temperature transmitter are arranged in the condenser, the vacuum pressure transmitter is used for detecting the vacuum pressure of the condenser, and the temperature transmitter is used for detecting a condenser seawater side inlet temperature and a condenser condensed water outlet temperature; a frequency conversion speed regulating device, wherein the frequency conversion speed regulating device at least comprises a signal input end and a signal output end, and the signal output end is connected to the circulating water pump; and a controller, wherein the controller comprises a plurality of signal input and output ports, the vacuumpressure transmitter and the temperature transmitter are respectively connected to the signal input ports of the controller, and the signal input end of the frequency conversion speed regulating device is connected to the signal output port of the controller. According to the present invention, with the system and the method, the flow rate of the circulating water in the condenser can be controlled, and the vacuum pressure and the supercooling degree of the condenser can be adaptively controlled within a set range.