419results about How to "Guarantee job stability" patented technology

The invention relates to the technical field of agricultural machinery automation, in particular to an intelligent seeding machinery automation control system which comprises a soil variability analysis module, a dynamic seeding mode adjustment module, a soil structure adjustment module, a seeding control and optimization module, an intelligent fault diagnosis module and a visualization module. Soil data are collected in real time through a soil variability analysis module, spatial variability and seeding suitability of soil are analyzed by utilizing a machine learning algorithm, and a dynamic seeding mode adjustment module automatically adjusts the seeding depth, the seeding speed, the seed spacing and the feeding amount according to an analysis result. The soil structure adjusting module can intelligently adjust the structure according to the compaction or loosening condition of soil, the intelligent fault diagnosis module monitors the operation state of the seeder in real time and diagnoses and repairs faults, and the visualization module provides a remote monitoring interface. According to the invention, the seeding process can be accurately controlled according to different soil conditions, the seeding uniformity and the crop germination rate are improved, and the efficiency and precision of agricultural production are remarkably improved.

The invention provides a weather-proof test system for an abnormal sound vibration test. The weather-proof test system comprises an environment box and abnormal sound test equipment, the environment box comprises a base table and a box body, a temperature adjusting chamber is formed in the box body, the base table is provided with a carrying base face located on the lower side of the temperature adjusting chamber, the base table is provided with a heat insulation chamber sunken relative to the carrying base face, and the heat insulation chamber is separated from the temperature adjusting chamber through a heat insulation plate; the abnormal sound testing equipment comprises a driving mechanism, a transmission mechanism and a bearing mechanism, the driving mechanism comprises a vibration exciter, the vibration exciter is arranged in the isolation chamber, and the transmission mechanism and the bearing mechanism are arranged above the carrying base plane. Different parts of the abnormal sound testing equipment are separated by arranging the temperature adjusting chamber and the heat insulation chamber, the transmission mechanism and the bearing mechanism of the mechanical part are arranged in the temperature adjusting chamber, and the driving mechanism of the electrical part is arranged in the heat insulation chamber, so that the requirement of a weather-proof test can be met, and the working stability of the vibration exciter can be ensured.

The invention belongs to the technical field of automatic welding machines, and particularly relates to an automatic welding machine for a spiral drum of a coal mining machine, the automatic welding machine comprises a mounting frame, an operation panel and a PLC (programmable logic controller), the operation panel and the PLC are arranged on the lower side wall of the mounting frame, and a connecting frame is fixedly connected to the upper side wall of the mounting frame. When the spiral blade is welded to the surface of a roller, the spiral blade can be stably clamped in the welding process, the spiral blade is kept at the set position and angle all the time, the power and the welding speed of the welding machine are automatically adjusted according to the deformation direction of the spiral blade, the welding quality of the spiral blade is guaranteed, and the welding efficiency is improved. And the gravity distribution condition of the roller can be automatically detected, when it is detected that the gravity distribution of the roller is changed due to welding, an operator can be reminded in time to conduct balance weight leveling treatment on the roller, and the follow-up cutting efficiency and working stability of the spiral roller are guaranteed.

The invention discloses a detection device for a sensor in an electromagnetic environment, and belongs to the technical field of sensor detection. A detection device for a sensor in an electromagnetic environment comprises a detector with a jack at the top, and further comprises a shielding case with an opening at the lower end, the shielding case is installed at the top of the detector, the jack is located at the inner bottom of the shielding case, a lifting device is fixedly installed on the detector, and the lifting device is connected with the shielding case. The telescopic end of the lifting equipment is fixedly connected with a mounting frame, and the shielding cover is fixedly mounted on the mounting frame; the vertical shaft is mounted at the inner top of the detector, a plurality of vertical rods distributed circumferentially are mounted on the outer wall of the vertical shaft, coils are fixedly wound on the outer walls of the vertical rods, and a driving part for driving the vertical shaft to rotate is arranged on the shielding cover; according to the invention, a dynamic electromagnetic environment can be simulated, so that the detection of the sensor is more accurate.

The invention provides a wafer carrying robot and a wafer storage device, and relates to the technical field of semiconductors. According to the wafer carrying robot, the moving mechanism of the wafer and the moving mechanism of the wafer box are creatively integrated in one mechanical arm, the robot capable of carrying the wafer and the wafer box is formed, and in other words, the wafer carrying robot can complete carrying of the wafer and carrying of the wafer box. Therefore, wafer carrying equipment and wafer box carrying equipment which are independently arranged can be replaced only by arranging the wafer carrying robot provided by the invention in the wafer preparation system, so that the integration level of the equipment in the wafer preparation system is improved, and the space occupation of the wafer preparation system is reduced. Besides, the wafer moving mechanism and the wafer box moving mechanism face different directions on the robot, and the moving mechanism corresponding to the current operation task can be rotated to the operation direction through the connecting piece, so that mutual interference of different moving mechanisms during operation is avoided, and the working stability is ensured.

According to the multi-angle adjusting laser cutting device for the foam, in the working process of the multi-angle adjusting laser cutting device for the foam, the XYZ moving platform drives the cutting mechanism to move above the bearing mechanism so as to cut the foam to be cut on the bearing mechanism. Specifically, to-be-cut foam is placed in a bearing groove formed in a supporting block, an exhaust fan adsorbs the to-be-cut foam through an exhaust pipe, an exhaust cavity and exhaust holes, and therefore the position of the to-be-cut foam in the bearing groove is fixed, and the flatness of the to-be-cut foam is guaranteed. The first driving motor drives the U-shaped bearing block to rotate through the rotating plate and the rotating column. The second driving motor drives the laser cutting head to rotate through the rotating rod and the connecting rod. The control mechanism controls the XYZ moving platform, the first driving motor and the second driving motor to work cooperatively so as to control the laser cutting head to move at multiple angles. And the requirement for multi-angle cutting of the foam is met.

The utility model relates to the technical field of connector clamping sleeves, and discloses a hydraulic clamping sleeve with a pre-tightening mechanism, which comprises a hydraulic clamping sleeve, a nut I is fixedly mounted on the outer surface of the hydraulic clamping sleeve, a hydraulic pipe is movably sleeved in the nut I, a fixing groove is formed in the hydraulic clamping sleeve, and a pre-tightening mechanism is arranged in the fixing groove. And a fixing sleeve is movably installed in the fixing groove, a first spring is fixedly installed in the fixing sleeve, a wedge block is fixedly installed at one end of the first spring, and a sliding groove is formed in the outer surface of the first nut. Compared with a traditional hydraulic clamping sleeve, the hydraulic clamping sleeve has the advantages that the hydraulic clamping sleeve is matched with the sliding groove through the wedge block, the first spring and the sliding groove, a hydraulic pipe can be conveniently and rapidly fixed, mounted and dismounted, tight connection between the hydraulic clamping sleeve and the hydraulic pipe is guaranteed, excellent sealing performance is provided for a system, hydraulic leakage is effectively prevented through the strong sealing capacity, and the service life of the hydraulic clamping sleeve is prolonged. And stable operation of a hydraulic system is guaranteed.

The embodiment of the invention provides a radio frequency drive circuit, a radio frequency power supply and semiconductor process equipment. Comprising the steps that a signal input module outputs a radio frequency driving signal and an initial enable signal; when the first-stage full-bridge driving amplification module is enabled, the radio frequency driving signal is amplified, and an amplified radio frequency driving signal is generated; the main path full-bridge amplification module amplifies the amplified radio frequency driving signal, and generates and outputs radio frequency power; the signal input detection protection module generates a working enable signal according to the amplified radio frequency driving signal when acquiring an initial enable signal, so as to enable the first-stage full-bridge driving amplification module; according to the embodiment of the invention, high-frequency radio-frequency signals can be quickly responded, the radio-frequency driving circuit is protected, and the stability is improved.

The invention relates to the technical field of vehicles, in particular to a fuel desorption device and system, a vehicle and a control method of the fuel desorption system.The fuel desorption device comprises a desorption pump used for conducting desorption treatment on fuel steam of a fuel tank; the condenser is used for condensing the fuel oil steam subjected to desorption treatment to obtain liquefied fuel oil; and the conveying assembly is used for conveying the liquefied fuel oil to a high-pressure oil pump of the engine. Therefore, the problems that in the prior art, due to the fact that each air inlet manifold of a fuel desorption device is connected with a desorption pipeline, uneven air inlet of an engine cylinder is likely to be caused for a multi-cylinder engine, and then the working efficiency and stability of the engine are affected are solved.

The utility model discloses a flame-retardant cable, and relates to the technical field of cables. The cable comprises an inner sleeve layer, a plurality of wire cores are arranged in the inner sleeve layer, a first filling cavity is formed between the inner sleeve layer and the plurality of wire cores, and the first filling cavity is filled with rock wool; the flame-retardant layer is arranged on the inner sleeve layer, the flame-retardant layer comprises two crosslinked polyethylene pipes arranged from inside to outside, a second filling cavity is formed between the two crosslinked polyethylene pipes, the second filling cavity is filled with glass wool, and a pressure reduction layer is arranged between the crosslinked polyethylene pipe located on the inner layer and the inner sleeve layer; the outer sleeve layer is arranged on the outer surface of the flame-retardant layer; the rock wool and the glass wool form an inner layer and an outer layer for flame retardance, the rock wool and the glass wool both have buffering and pressure reducing effects, the crosslinked polyethylene pipe, the pressure reducing layer and the jacket layer play a role in pressure resistance, pressure reduction and protection on the cable, and therefore the working stability of the cable is ensured.

The invention belongs to the technical field of ball serving devices, and particularly relates to a pet ball serving device which comprises a plurality of base bodies which are detachably arranged, each base body is provided with at least one channel splicing part used for forming a ball inlet channel, when all the base bodies are installed together, all the channel splicing parts are spliced with one another, a complete ball inlet channel is formed in the base bodies, and the whole ball inlet channel is formed by the channel splicing parts. The ball inlet channel is provided with a ball inlet section with a ball inlet and a ball serving section with a serving opening, and the ball serving device is arranged at a driving window of the ball serving section and used for serving pet balls; the ball feeding device is arranged at the ball feeding window of the ball entering section and used for conveying the pet balls into the ball serving device; the driving control device is provided with a ball serving sensing module arranged on the ball entering section, the pet balls entering the ball entering section are recognized through the ball serving sensing module, and the ball feeding device and the ball serving device are controlled to work. When the ball inlet channel needs to be cleaned, all the base bodies are detached, the corresponding channel splicing parts on the base bodies are cleaned, and therefore the ball inlet channel is convenient to clean.

According to the underwater electric grinding tool, a brush motor and a speed reducer of the underwater electric grinding tool are reliably packaged in a sealed shell, so that electrical components in the brush motor are completely isolated from an external deepwater operation environment, the working stability of the underwater electric grinding tool is guaranteed, and the performance is more reliable; the sealing shell of the underwater electric polishing tool is connected with the outside only through the oil-filled water-tight cable, on one hand, the oil-filled water-tight cable can supply power to the brush motor, and on the other hand, pressure compensation oil can be dynamically filled into the sealing shell. The pressure balance of the underwater electric grinding tool at different diving depths along with the underwater robot can be effectively ensured, so that the underwater electric grinding tool can better adapt to working environments with different water depths, and the underwater electric grinding tool has the characteristics of small size, light weight, low power consumption and high integration level in structural design; the sealing shell of the underwater electric grinding tool is connected through bolts, and maintenance and debugging are more convenient.

The invention relates to the technical field of medical equipment, and discloses a joint surgical navigation device which comprises a surgical navigation robot body and further comprises a movable base installed on the surgical navigation robot body, and four telescopic supporting legs are hinged to the movable base in a cross-shaped structure. One end of the telescopic supporting leg is hinged to a negative pressure adsorption mechanism. According to the navigation device for the joint surgical operation, when an adjusting rod moves towards the outer side of a rotating rod, a first sliding base is driven to move through a push rod, the adjusting rod rotates towards the lower side during moving, all negative pressure adsorption mechanisms expand outwards in a rectangular structure and descend to make contact with the ground, and meanwhile a piston plate descends to form negative pressure in a first fixing cylinder; and the first fixing barrel is stably adsorbed to the ground, the adsorption effect is achieved while the contact area of the surgical navigation robot body and the ground is increased, and therefore the working stability of the surgical navigation robot body is ensured.

The invention relates to the technical field of electronic assembly, and particularly discloses carrier replacement equipment, a carrier replacement system and a carrier replacement method. The equipment is used for replacing a product from a first carrier to a second carrier and comprises a pressing strip taking and placing mechanism, a turn-over assembly, a pushing mechanism and a carrying assembly. The pressing strip taking and placing mechanism is used for taking and placing pressing strips from the carrier body located at the first position. The turn-over assembly is used for turning over and carrying the product on the carrier main body located at the first position to the second position; the pushing mechanism is used for pushing the second carrier located at the third position to the discharging position. The carrying assembly is used for installing the product located at the second position on the second carrier located at the discharging position. According to the equipment, the pressing strip taking and placing mechanism and the turn-over assembly are adopted for carrying out flow optimization of carrier replacement operation, automatic replacement of product carriers is achieved, and the purposes of reducing cost and improving efficiency are achieved.

The invention relates to the technical field of drilling treatment, and discloses metal round pipe surface drilling treatment equipment which comprises a limiting type moving mechanism and a telescopic linkage mechanism. According to the metal round pipe surface drilling treatment equipment, a lead screw is installed below a table plate, cleaning operation on metal filings can be facilitated, meanwhile, movement of a sliding block is limited by a threaded structure and an axial limiting rod, the working stability of a round pipe can be guaranteed on the basis that movement is achieved during drilling of the round pipe, and in addition, the working efficiency is improved. The axial movement of the sliding block comes from the damping effect of the thread structure and the spiral spring, and therefore the phenomenon that the precision control capacity of the drilling position is poor due to the thread pitch gap difference of the internal thread structure and the external thread structure is avoided.

The utility model relates to the technical field of hot press equipment, in particular to hot pressboard adjusting equipment for a hot press. According to the technical scheme, the hot-pressing device comprises a rack, universal wheels, a hot-pressing platform, telescopic limiting rods, a buffering mechanism and an adjusting mechanism, the universal wheels are arranged at the four corners of the lower portion of the rack, the hot-pressing platform is arranged on the rack, a fixing frame is arranged on the portion, on one side of the rack, of the hot-pressing platform, and the adjusting mechanism is arranged on the portion, on the fixing frame, in the rack. A hot pressing plate is connected to the adjusting mechanism in a sliding mode, and buffering mechanisms matched with the hot pressing plate are arranged on the upper side and the lower side of the rack; according to the device, the motor can be controlled to drive the two-way screw rod to rotate on the bearing seat and the fixed seat, the two-way screw rod is in threaded fit with the sliding block, so that the sliding block is driven to vertically move along the guide rods, and the guide blocks slide between the guide rods, so that stable movement of the hot pressing plate can be limited; the height of the hot pressing plate can be accurately adjusted, and it is ensured that the moving direction of the hot pressing plate is accurate.

The utility model relates to the technical field of speed regulation sensors, in particular to a speed regulation sensor of an electric vehicle, which comprises a plastic shell, a plastic body, a shaft core rotatably arranged in the plastic shell, a torsion spring movably sleeved on the periphery of the shaft core and an electric brush assembly arranged at one end of the shaft core. The plastic body is arranged at one end of the plastic shell, a resistor disc assembly is arranged on the side, close to the electric brush assembly, of the plastic body and comprises two symmetrically-arranged resistor disc bodies, the electric brush assembly comprises two symmetrically-arranged electric brush bodies, and the electric brush bodies and the resistor disc bodies are matched in a one-to-one correspondence mode and abut against each other in a sliding mode. And each resistor disc body is connected with a terminal assembly. The device is novel in structure and ingenious in design, working reliability and stability of the device are guaranteed, the service life is prolonged, and replacement and maintenance cost is reduced.

The invention discloses a multi-angle automatic pesticide spraying device for pest control, relates to the technical field of pesticide spraying devices in agriculture and forestry production, can be widely applied to field crop production, orchard management and forest cultivation processes, and is characterized in that the bottom of a connecting valve is connected with connecting female heads, and the bottoms of the two connecting female heads are connected with connecting male heads through threads; the bottom of the connecting male head is rotatably connected with a rotating pipe, the bottom of the rotating pipe is sequentially connected with a plurality of mounting pipes through a plurality of connecting gooseneck pipes, and one side of each mounting pipe is connected with a pesticide spraying gun. The pesticide liquid in the pesticide storage barrel can be continuously fed into the pesticide storage box to supplement the pesticide liquid, so that the device can continuously operate, manual pesticide spraying is not needed, the labor intensity of workers is reduced, manual inhalation of atomized pesticide is prevented, and the body health of farmers is guaranteed.

The present invention discloses a turning electric spindle, including a sleeve body, a stator part, and a rotor part. The two ends of the sleeve body are respectively fixedly connected with a front bearing cover and a rear bearing cover. The front bearing cover and the rear bearing cover are penetrated with a through hole for the rotor part to pass through. The end of the rotor part passing through the front bearing cover is a processing end. The processing end is provided with an assembly head for installing a cutter head. The processing end is provided with a protective cover. The edge of the protective cover extends with a driving ring. The front bearing cover is penetrated with an active groove for driving the axial rotation of the rotor part. A change-of-direction transmission assembly is provided between the annular structure of the driving ring passing through the active groove and the rotor part so that the rotation direction of the protective cover is opposite to that of the rotor part. In the turning electric spindle of the present invention, when the rotor part rotates, the protective cover is linked to rotate in the opposite direction, thereby effectively capturing and guiding the chips generated during the turning process, preventing the chips from flying around, and ensuring the safety of the working environment.

The invention discloses a temperature anomaly processing method for a hot air heating device, and belongs to the technical field of heating device working methods.The temperature anomaly processing method comprises the steps that S100, if the temperature rise of a temperature detection element within a first time interval delta t1 reaches delta T1, the temperature detection element is started; the control module judges the occurrence of temperature abnormity according to the temperature signal fed back by the temperature detection element, and executes the step S200; s200, the control module starts countdown, if the temperature rise of the temperature detection element within the second time interval delta t2 reaches delta T2, the control module judges that the temperature is abnormal and continuous according to a temperature signal fed back by the temperature detection element, and the step S300 is executed; and S300, the control module executes the protection program. According to two dynamic temperature rise signals of the temperature detection element, whether the temperature of the device is abnormal or not is judged, the accuracy of judgment can be greatly improved, when the temperature abnormal condition does not occur really, the heating piece conducts heating normally, and the working effect of the device can be guaranteed.

The invention belongs to the technical field of ball serving devices, and particularly relates to a pet ball serving device which comprises a ball serving device, the ball serving device comprises a left driving mechanism and a right driving mechanism, and the left driving mechanism or / and the right driving mechanism comprises a mounting platform arranged on one side of a driving window and provided with a guide sliding groove; the sliding piece is movably arranged in the guide sliding groove; the ball serving driving source is mounted on the sliding piece; the driving wheel is mounted on a main shaft of the ball serving driving source, and part of the driving wheel extends into the driving window; and the at least one resetting piece is arranged between the sliding piece and the mounting platform and is used for driving the driving wheel to approach the driving window. Under the action of the sliding piece and the reset piece, the ball serving device can automatically adapt to the ball serving distance between the two driving wheels according to the size or hardness of a pet ball, and the ball serving success rate of the ball serving device is increased; meanwhile, ball serving resistance can be reduced, noise is reduced, and the service life is guaranteed.

The invention discloses a thermal management control method for a driving motor of a deep-sea robot. The thermal management control method comprises the following steps: S1, constructing a continuous time state space model of the motor; s2, setting a temperature adjustment variable and an adjustment rule of each armature in the motor; s3, detecting the temperature of each armature according to a certain period and updating a temperature regulation variable in real time; s4, when the value of the temperature adjusting variable changes, updating the control gain; and S5, calculating a control signal in real time and acting the control signal on the motor according to a set rotating speed signal needing to be tracked by the motor and the gain matrix. Through a dynamic current adjusting mechanism of a plurality of modularized stators, current distribution is automatically adjusted according to the real-time temperature and load condition of each armature, performance reduction or motor damage caused by local overheating is avoided, and the rotating speed tracking precision of the multi-modularized deep-sea robot driving motor and the heat balance performance of each armature are ensured.

The invention discloses a frequency conversion intelligent heat dissipation device for a wind power plant generator, and the device comprises a first heat dissipation fin, a second heat dissipation fin, a third heat dissipation fin, a heat conduction pipe, a temperature sensor, a first fan, a second fan and a processor, and the heat dissipation capability of the first heat dissipation fin, the second heat dissipation fin and the third heat dissipation fin is combined in different time periods. The operation turning direction and the operation rotating speed of the first fan and the second fan are dynamically adjusted, the cooling fins can be cooled in time through airflow conveying control while the double-cooling scheme of cooling fins and air cooling is achieved, basic preparation is made in advance for follow-up cooling when the temperature is too high, and the cooling efficiency is improved. Therefore, the frequency conversion heat dissipation device can intelligently achieve the cooling and heat dissipation effects on the wind power plant generator, and the working stability and reliability of the generator are effectively guaranteed.

The invention relates to the field of electronic engineering, and discloses an RGB atmosphere lamp finished product calibration method, which comprises the following steps: constructing an AOI defect detection algorithm of an LED chip corresponding to a finished product RGB atmosphere lamp, identifying chip defects of the LED chip by using the AOI defect detection algorithm, and carrying out first calibration on the LED chip corresponding to the finished product RGB atmosphere lamp to obtain a first calibrated finished product RGB atmosphere lamp; configuring a sensing cooperation module of the first calibration finished product RGB atmosphere lamp, preprocessing output data by using the trained optical model to obtain model processing data, and calculating a deviation coefficient of the first calibration finished product RGB atmosphere lamp; and constructing an intelligent calibration algorithm of the first calibration finished product RGB atmosphere lamp, analyzing a deviation compensation parameter of the first calibration finished product RGB atmosphere lamp by using the intelligent calibration algorithm, and executing second calibration of the first calibration finished product RGB atmosphere lamp in combination with the deviation compensation parameter to obtain a target finished product RGB atmosphere lamp. According to the invention, the generation quality of the finished RGB atmosphere lamp can be improved.

The utility model discloses an intelligent universal circuit breaker, which relates to the field of circuit breakers and comprises a front shell, a base, a rear shell and a handle, an operating mechanism and a tripping assembly are arranged in the front shell, an arc extinguish chamber and a linkage mechanism are arranged in the base, a contact, a run-on plate and an angle plate which are fixedly mounted are arranged on the rear shell, and the handle is arranged on the rear shell. The contact is clamped by the run-on plate and the angle plate, a fastening assembly for elastically connecting the run-on plate, the angle plate and the contact is arranged among the run-on plate, the angle plate and the contact, and the run-on plate is in surface contact with the contact. The utility model has the advantage of good working stability.

The utility model discloses anti-blocking waste gas treatment equipment which comprises a treatment box body, and the outer surface wall of the treatment box body is fixedly connected with a filter box and an air pump. According to the waste gas treatment device, waste gas enters the filtering bin through the gas inlet and is filtered through the filtering net, most separated solid impurities directly fall into the collecting box through the discharging channel, part of small impurities can be attached into meshes of the filtering net, and the pushing cylinder is started at regular time; the output end of a pushing cylinder drives a cleaning strip to periodically reciprocate along the outer surface wall of the filter screen through a fixing strip so as to push away residual impurities, and along with continuous waste gas treatment, the obliquely arranged discharging channel can effectively prevent a large amount of impurities from flowing back, so that the waste gas treatment efficiency is improved. The filter screen which is obliquely arranged is matched with the periodic operation of the cleaning strip, so that the impurities can be effectively prevented from being adsorbed due to negative pressure, the blockage prevention of the waste gas treatment equipment is realized, and the blockage prevention effect is ensured.

The invention provides a shipborne stabilized platform with a motion compensation function and a control method thereof.The shipborne stabilized platform comprises a base, a driving device, an upper platform, a control box and a cable, the control box is installed on the base and connected with the driving device through the cable, and the shipborne stabilized platform is characterized in that the driving device comprises a square box body and a driving assembly; a pitching power shaft and a pitching auxiliary shaft in the driving assembly respectively extend out of the two side walls of the square box body and are connected with the base; a rolling power shaft and a rolling auxiliary shaft in the driving assembly extend out of the two side walls of the square box body correspondingly to be connected with the upper platform. An inertial sensor A installed on the upper platform is connected with the driving device and the control box through signal lines, the control box comprises a servo driver, a controller and an inertial sensor B, the controller reads signals of the inertial sensor A and the inertial sensor B, and the controller controls the pitching power shaft and the rolling power shaft to rotate through the servo driver. And the pitching and rolling of the ship are compensated, so that the upper platform is kept horizontal and stable. The structure is simple and reasonable.

The application discloses an electric vehicle charging protection device, which comprises a main body, a shielding part and a movable part, wherein the shielding part and the movable part are fixed on the main body; a controller, a button and a connecting port are arranged on the main body, the controller is connected with an external power supply and an electric device through the connecting port; a sleeve is arranged at the lower end of the shielding part, a connecting rod is arranged at the upper end of the main body, the shielding part is inserted into the sleeve through the connecting rod and is fixed at the upper end of the main body, so as to cover the button and the connecting port; the movable part comprises a support, a rotating block and a motor, the motor is fixed in the shielding part through the support, one end of the rotating block is connected with a driving end of the motor, the motor drives the rotating block to rotate and generates centrifugal force; the button and the motor are electrically connected with the controller. Through the arrangement of the shielding part and the movable part, the movable part drives the shielding part to move, the rotating block rotates and generates centrifugal force to make the accumulated snow above the shielding part fall off, the situation that the shielding part is deformed due to too much accumulated snow is avoided, and the safety and stability of the electric vehicle charging protection device are improved.

The present invention discloses a picking arm mechanism, including a rigid component and a flexible component, wherein the rigid main arm and the adjusting arm do not directly contact the target object to be picked up, and the main arm and the adjusting arm can pull the flexible component, and while the flexible component contacts the target object to be picked up and picks up the object, the rigid component adjusts the angle between the main arm and the adjusting arm to ensure that the flexible component is in full contact with the target object to be picked up, thereby improving the working stability of the flexible component of the picking arm mechanism during picking up and subsequent handling. The present invention also provides a picking device, including the above-mentioned picking arm mechanism and a driving component, wherein the main arm is connected to the driving component, and the flexible component is connected to other structures of the robot, and the driving component can drive the picking arm mechanism to move, and the main arm and the adjusting arm rotate relative to each other to adjust, tension and support the flexible substrate, and the flexible component can adapt to the special-shaped target object to be picked up, thereby ensuring the stable picking up of the picking arm mechanism and reducing the control difficulty of the picking device.

The utility model relates to the technical field of aluminum powder atomizers, in particular to an atomizer nozzle assembly which comprises a nozzle body, and the nozzle body comprises a molten aluminum circulation body, a primary air cavity wrapping body and a secondary air cavity wrapping body. The replaceable nozzle is composed of a round pipe section, a flange section connected with the lower end of the round pipe section and an upper bent section connected with the outer edge of the flange section, a limiting spigot corresponding to the round pipe section is formed in the lower edge of the inner circumferential face of the molten aluminum circulation body, and a plurality of primary airflow inlets corresponding to the primary impact flow channels are formed in the outer circumferential wall of the round pipe section. A plurality of secondary airflow inlets corresponding to the secondary impact runners are formed in the peripheral wall of the round pipe section, an annular positioning table located on the inner side of the upper bent section of the replaceable nozzle is arranged at the lower end of the secondary air cavity wrapping body, and the flange section of the replaceable nozzle is connected and fixedly connected with the bottom face of the annular positioning table. When the nozzle is blocked, the nozzle main body does not need to be replaced, so that the use cost is saved.