27results about How to "Reduce mechanical friction" patented technology

The invention belongs to the technical field of civil engineering materials, and provides an early-strength high-fluidity geopolymer grouting material and a preparation method thereof. The method comprises the following steps: firstly, carrying out heat treatment and chemical regulation on fly ash and granulated blast furnace slag to generate a pre-reaction phase with high reaction activity, and improving the alkali excitation reaction efficiency; then, by preparing a lubricating particle dispersion liquid and utilizing the synergistic effect of a silane coupling agent and interface lubricating particles, the uniform dispersity of the particles is enhanced; by adding the ionic liquid and the functionalized acylamino polymer, the dissolution and activation of the aluminosilicate are accelerated by utilizing the high polarity, the ion shielding effect and the dissolution enhancing performance of the ionic liquid; meanwhile, the amido polymer inhibits particle aggregation and stabilizes the particle dispersion state through the adsorption effect, the amido polymer and the amido polymer cooperate to form a lubricating layer in the slurry, reduce the viscosity of the slurry and improve the fluidity, and the early strength of the material is further improved by accelerating the generation of a gel phase.

The application discloses an active unloading type liquid static pressure spindle and relates to the technical field of liquid static pressure spindles.The active unloading type liquid static pressure spindle comprises a spindle, a tray is fixedly arranged at the upper end of the spindle, a conical roller bearing is fixedly arranged at the lower part of the spindle, a radial bearing is fixedly arranged between the tray and the conical roller bearing on the spindle, an inner shell is sleeved outside the radial bearing and the conical roller bearing, a ring-shaped groove is oppositely formed in the middle of the upper and lower end faces of the inner shell, and an upper cover plate and a lower cover plate are respectively fixedly installed in the ring-shaped groove.The radial bearing limits the spindle in the radial direction, the conical roller bearing limits the spindle in the radial direction and the axial direction, the spindle is prevented from being displaced in the axial direction and the radial direction during operation, the transmission efficiency of the spindle and the stability of operation are improved, the machining precision of the machined objects on the tray is prevented from being affected, the appearance of defective products caused by precision is reduced, and the machining quality is improved.

The utility model discloses a prefabricated box girder top plate steel bar binding movable trolley which comprises a top plate binding jig frame, the top plate binding jig frame is vertically supported by channel steel, channel steel rail supporting beams are arranged on the left side and the right side of the top of the top plate binding jig frame, and angle steel rails are fixed to the channel steel rail supporting beams. Meanwhile, a trolley body is slidably connected to the angle steel rail; top plate steel bar bodies are symmetrically fixed to the two sides of the middle of the top face of the angle steel rail, and clamping grooves are formed in the tops of the top plate steel bar bodies at equal intervals. The trolley further comprises supporting legs symmetrically welded and fixed to the bottom of the trolley body, and three walking wheels are connected to the bottoms of the supporting legs at equal intervals through bearings. The prefabricated box girder top plate reinforcing steel bar binding movable trolley can move in the reinforcing steel bar intersection binding direction in the construction process, an operator does not need to walk and work on reinforcing steel bars, after prefabricated box girder top plate reinforcing steel bars are installed, a reinforcing steel bar cage can be hoisted by hoisting the movable trolley, and operation is convenient and fast.

The application provides a wire SI performance test board for rapid docking, comprising a test mainboard, a plurality of test output interfaces are arranged on the front surface of the test mainboard, a first SMA interface is arranged on the upper side of the test output interface, a second SMA interface is arranged on the left side of the test output interface, a test input interface is arranged on the back surface of the test mainboard, the test input interface is provided with a first magnetic attraction assembly, the test mainboard further comprises a test input connector, the test input connector is provided with a second magnetic attraction assembly, one end of the test input connector is rapidly docked with the test input interface through the second magnetic attraction assembly and the first magnetic attraction assembly, and the other end of the test input connector is provided with a wire docking interface. The application can significantly improve the wire connection / detaching efficiency, is simple and reliable to operate, reduces interface abrasion, and has good adaptability.

The invention relates to the technical field of air floating structure manufacturing, in particular to a dynamic inclination compensation double-shaft air floating platform which comprises a substrate platform used for placing and positioning a glass substrate, a micro-motion device arranged at the bottom end of the substrate platform, and an X-axis dynamic compensation adjusting device and a Y-axis dynamic compensation adjusting device which are used for adjusting the flatness of an air floating mechanism, a plurality of air floating pads are densely distributed between the contact surfaces of the Y-axis dynamic compensation adjusting device and the micro-motion device and between the Y-axis dynamic compensation adjusting device and the X-axis dynamic compensation adjusting device, and the air floating pads are mutually spliced through fixing screws to form an air floating guide rail; a pressure equalizing groove is formed in the top end of each air floating cushion, and air pressure sensors used for detecting air film pressure changes are arranged in the pressure equalizing grooves and distributed at the four corners and the center of the air floating cushions at equal intervals. The double-shaft air floating platform can automatically carry out dynamic inclination compensation, the pitching inclination and the rolling inclination of the air floating platform are reduced, the motion precision of the air floating platform is improved, and therefore the machining precision of the exposure machine is improved.

The utility model discloses a millet harvesting thresher, including mobile car, be provided with the thresher subassembly on the mobile car, the thresher subassembly includes thresher cylinder, second motor, driving wheel, driven wheel and transmission belt, the thresher cylinder sets up on the mobile car, second motor fixed mounting is on the mobile car, the driving wheel is connected in the output of second motor, the driven wheel rotatoryly connects on the thresher cylinder, transmission belt transmission is connected on the driving wheel and driven wheel, one end of mobile car sets up in the filter component, the filter component includes fixed frame, mobile frame and filter plate, the fixed frame installs on the mobile car, mobile frame slidingly connects on the fixed frame, the filter plate installs on the mobile frame, to solve the operation of the thresher process in the background art not enough convenient technical problem.

The present invention relates to the technical field of vortex fluid machinery, and discloses a vortex mechanism. The vortex mechanism comprises: a frame; a static disk fixed to the frame, and a control magnet is arranged around the frame and / or the static disk; a moving disk assembly, the moving disk assembly is located between the frame and the static disk, and a controlled magnet is arranged around the moving disk assembly; a control circuit, which is used to control the magnetic force between at least part of the control magnet and the controlled magnet, so that the moving disk assembly is in a predetermined posture. In the above manner, the present invention can reduce mechanical friction and collision, and allow the vortex mechanism to design vortex teeth with larger tooth height and more turns, thereby improving the working efficiency of the vortex mechanism.

The utility model discloses a pre-embedded positioning device which comprises a telescopic rod, a clamping piece and a threaded rod, the clamping piece is movably installed on one side of the telescopic rod, the threaded rod is clamped in the clamping piece, and a lubricating rotating assembly is fixedly installed on the outer wall of the clamping piece. The lubricating rotating assembly comprises a rotating shaft, a torsional spring and an injection pipe, the injection pipe is located at the top of one side of the telescopic rod, the bottom of the injection pipe is connected with the interior of the rotating shaft in a sleeving mode, and the outer wall of the rotating shaft is movably connected with the torsional spring in a sleeving mode; through the designed rotary lubricating assembly, the outer wall of a sponge is extruded in the deformation process of the torsional spring, so that the sponge extrudes liquid in the sponge, the extruded liquid is smeared on the outer wall of the torsional spring at the moment, the torsional spring can be lubricated, mechanical friction is reduced, and therefore the service life of the torsional spring can be prolonged.

The present invention provides an air floating driving device, comprising a first air floating platform and a second air floating platform, the first air floating platform is located above the second air floating platform, the running directions of the first air floating platform and the second air floating platform are perpendicular to each other, the first air floating platform and the second air floating platform both comprise an air floating assembly and a motor assembly, the first air floating platform comprises a first guide rail device, the second air floating platform comprises a second guide rail device, the air floating assembly comprises an upper slide, a side slide and a lower slide, the first guide rail device and the second guide rail device both comprise side rails and a mounting groove located between the two side rails, the side rails comprise a top surface, a side surface and a bottom surface connected in sequence, the side slides are respectively mounted on the side surfaces of the side rails on both sides, the upper slide is located on the top surface of the side rails and is fixedly connected to the side slides on both sides, the lower slide is connected to one end of the side slide away from the upper slide, the upper slide, the side slide and the lower slide are all provided with air outlets, and the air outlets spray air toward the side rails.

The invention discloses a magnetic suspension circular weft insertion mechanism, which relates to the field of new textile machinery. It uses magnetic force to suspend the weft insertion device on the weft insertion groove rail, and uses magnetic force to drive the weft insertion device to do circular motion in the groove rail. It has high speed, less mechanical friction, no mechanical impact, high weft insertion efficiency, low noise, can realize full-automatic weft insertion, greatly reduces the difficulty of operation, and improves the production efficiency of the three-dimensional multi-layer cylindrical loom. Therefore, the invention is not only simple in structure, saves labor, but also has high working efficiency.

The application discloses an AMT economic coasting control method and system, and relates to the technical field of vehicle transmission control, which comprises the following steps: obtaining vehicle operating state parameters to determine coasting entry conditions, and outputting an economic coasting condition satisfaction symbol when all the conditions are satisfied; obtaining the operating state of a mechanical automatic transmission, determining whether the state maintenance calibration condition is satisfied, and executing delay control, and activating the economic coasting state when the target delay time is reached; executing the neutral coasting process according to the operating state of the transmission, completing the decoupling of the transmission system, and entering the economic coasting; monitoring the exit trigger condition in the coasting period, and canceling the state when the condition is satisfied, calculating the target combination gear position, and restoring the on-gear operating state. The application prevents high-frequency switching of the system through multi-dimensional determination and delay mechanism, applies time alignment and speed regulation to reduce mechanical resistance during decoupling, and calculates the combination gear position based on the reference vehicle speed and synchronizes the speed during exit, so that the longitudinal impact of the vehicle during the recombination of the clutch is reduced.

The utility model relates to the technical field of display equipment, and discloses a magnetic suspension type lifting display stand which comprises a display box, the inner side of the display box is fixedly connected with a fixing disc, the bottom of the fixing disc is fixedly connected with a servo motor, the top of the fixing disc is fixedly connected with a connecting rod, and the connecting rod is fixedly connected with a magnetic suspension device. A limiting disc is fixedly connected to the top of the connecting rod, a plurality of sliding rods are slidably connected to the outer portion of the limiting disc, a pushing disc is fixedly connected to the tops of the sliding rods, a first electromagnet is installed at the top of the pushing disc, a lead screw is installed at the top of the servo motor, and a lifting disc is in threaded connection to the outer portion of the lead screw; according to the magnetic suspension type lifting display stand, by achieving magnetic suspension lifting of the containing base and a car key, the science and technology feeling of display is enhanced, mechanical friction is reduced, and the lifting stability and speed are improved.

The present invention relates to the field of magnetic-assisted driving technology, specifically a magnetic-assisted fan wheel dynamic bicycle sharing system and method thereof, wherein the system includes a magnetic fluid dynamic control module, a magnetic field monitoring module, a stability adjustment module, a superconducting material screening module, a coil design module, and a control strategy module. In the present invention, by adjusting the intensity and frequency of the current in the conductive fluid, the fluid dynamic environment around the magnetic-assisted fan wheel is optimized, which not only improves the energy efficiency of the system but also reduces energy consumption. By adjusting and controlling the magnetic field intensity in real time and adjusting the electromagnetic field characteristics, the mechanical friction is effectively reduced and the dynamic response of the system is enhanced. By selecting superconducting materials that match the target critical temperature and magnetic response requirements, the overall design is further optimized and the dynamic performance of the bicycle is enhanced, so that the bicycle can effectively improve the riding efficiency and reduce the maintenance cost without adding extra weight, and realize accurate control of the bicycle's movement path and speed.

The invention relates to the related technical field of plastic waste recovery processing, in particular to screw extrusion equipment for recovering thermoplastic polyester processing chemical fiber materials, which comprises a screw extruder, the screw extruder comprises an operation table and an extrusion cylinder fixedly mounted on the operation table, a shaping plate is detachably mounted at an extrusion end formed by the extrusion cylinder, at least two groups of through holes are formed in the shaping plate, and an opening and closing mechanism is arranged between the shaping plate and the extrusion end; the cooling pipe is arranged on the operation table, and a moving space is formed at the front end of the cooling pipe; the cleaning mechanisms are symmetrically arranged in the moving space and are controlled by a reciprocating pushing piece mounted in the moving space; according to the device disclosed by the invention, the problems of adhesion and solidification of thermoplastic polyester which are extremely easy to generate under a shock cooling condition are effectively reduced on the premise of ensuring continuous production of the screw extruder through cooperative cooperation of intermittent switch switching and the cleaning mechanism.

The present invention relates to the field of engine technology, a piston assembly for a new engine and a new engine, the assembly includes a piston and a variable hollow valve, a cross support frame is provided in the middle of the piston, a valve through hole is provided in the middle of the cross support frame, a plurality of matching protrusions are provided on the cross support frame, a valve seat is provided on the piston between the matching ends with the variable hollow valve, the variable hollow valve includes a hollow valve and a valve stem, a first annular groove is provided in the middle of the hollow valve, a plurality of first air release through holes are provided in the first annular groove, a second annular groove is provided in the middle of the first annular groove, and a plurality of matching through holes are provided in the second annular groove. A plurality of matching protrusions are provided with a center valve seat through a plurality of matching through holes, and a hollow sealing ring is also provided on the first annular groove. The advantages of this patent are that it facilitates cleaner exhaust, reduces mechanical friction, time-controlled intake valve, variable compression ratio, improves thermal efficiency and power, and uses two-stroke linear internal combustion engine exhaust Atkinson technology.

The utility model discloses a small axial force multi-stage centrifugal pump which comprises a vertically arranged pump shell, a main shaft extending to the two sides is arranged in the pump shell, the upper end of the main shaft is provided with a balance drum, the balance drum is sleeved with a balance sleeve, and the outer curved surface of the balance sleeve is connected with the pump shell. A plurality of guide vanes are arranged at the upper end and the lower end of the interior of the pump shell, impellers are arranged at the upper end and the lower end of the main shaft, the upper impeller and the lower impeller are symmetrically arranged, and the multiple lower impellers correspond to the multiple lower guide vanes one to one and are located on the inner sides of the lower guide vanes one to one. The multiple upper impellers correspond to the multiple upper guide vanes one to one and are located on the inner sides of the multiple upper guide vanes one to one, a partition block is arranged at the middle end of the inner side of the pump shell, the lower end of the main shaft penetrates to the position below the partition block, and two first flange openings located on the upper side and the lower side of the partition block respectively are formed in the outer side of the pump shell. The small-axial-force multi-stage centrifugal pump has the advantages of being small in axial force and long in service life.

The invention discloses a bee growth and development detection and intelligent regulation and control device in the technical field of bee breeding, and the device comprises a beehive, the top of the beehive is detachably connected with a beehive cover, the bottom of the beehive is provided with a motor, an output shaft of the motor is fixedly connected with a screw rod and extends to the top of the beehive, and the screw rod is rotatably connected with a nut seat; one side of the nut seat is rotatably connected with a camera, the bottom of the camera is provided with a remote control wheel, the nut seat is provided with a sliding rail corresponding to the remote control wheel, a sliding shell is installed in the beehive, the top and the bottom of the nut seat are fixedly connected with pistons, the pistons are in vertical sliding fit with the inner wall of the sliding shell, and a ventilation opening is formed in the beehive; the ventilation opening and the beehive are communicated with a ventilation pump, an entrance is formed in the beehive, an activeness detection system is arranged at the entrance, a temperature and humidity regulation and control system and a neural network detection system used for detecting the growth state of bees are installed on the beehive, a material taking system is installed in the beehive, and an observation system is arranged on the beehive cover. The device is simple in structure and high in practicability.

The utility model discloses a traditional Chinese medicinal material active ingredient extraction device relates to traditional Chinese medicinal material extraction technical field, including broken grinder frame, broken grinding motor box, vibration frame, component extraction frame and stirring motor box, start stirring motor, heating element, temperature sensor and solenoid valve drive part, the output shaft of stirring motor drives stirring driving axle high -speed rotation through the shaft coupling, the component of first chain sprocket drive part is same with second chain sprocket drive part, the power of stirring driving axle is synchronous with stirring driven axle, and the ball bearing of driven axle is the friction resistance when reducing stirring driven axle rotation, ensures rotation steady, and the outer wall surface upside and downside of stirring driving axle and stirring driven axle are installed stirring piece, and stirring piece rotates with driven axle, simultaneously, the operator injects solvent mixture through the liquid injection pipe welding of component extraction frame left end upper side through -penetrating place, makes to medicine and solvent mixture and turns over, breaks partial concentration difference.

This utility model provides a high-efficiency emulsification and mixing device for low-fat hot pot base, relating to the field of food processing equipment technology. It includes a base, a pre-emulsification tank on top of the base, a tank cover on top of the pre-emulsification tank, a solid feed inlet and a liquid feed inlet on top of the tank cover, a conveying pipe on one side of the pre-emulsification tank, a metering system at the other end of the conveying pipe, a motor on one side of the metering system, a high-efficiency emulsification tank at the bottom of the motor, a mixing buffer tank at the bottom of the high-efficiency emulsification tank, and a support leg and a discharge pipe at the bottom of the mixing buffer tank. By using a pre-emulsification tank, a spiral guide plate and stirring device designed using fluid dynamics are used to create a strong vortex during the initial material fall and pumping. This not only initially disperses solid materials but also allows water, oil, and powder to be initially and evenly wetted, avoiding subsequent "clumping" and laying the foundation for high-efficiency emulsification. This is faster than traditional mixing tanks and is a continuous process.

The utility model discloses a high-precision linear motor, which comprises a shell, a driving part and a transmission part, wherein the driving part and the transmission part are arranged in the shell. The driving part comprises a motor rotor and a motor stator, a groove is formed in the motor stator, and two parallel and opposite magnetic tracks are arranged in the groove. The transmission part comprises a connecting piece in sliding connection with the shell. And the connecting piece is fixedly connected with the motor rotor, so that a thrust coil of the motor rotor is positioned between the two magnetic tracks in the groove and is not connected with the motor stator. According to the utility model, the motor stator and the motor rotor in the driving part are in non-contact connection, so that non-contact driving can be realized through interaction of magnetic fields in the working process of the motor, mechanical friction is greatly reduced, energy consumption in the working process of the motor is reduced, motion smoothness and positioning accuracy of the motor are improved, and the service life of the motor is prolonged.

The invention relates to the technical field of motors, and discloses a permanent magnet disc type motor for an oil pumping unit in an oil field, which comprises a bracket and a double-disc type permanent magnet motor assembly, the double-disc type permanent magnet motor assembly comprises two disc type permanent magnet motors which are completely symmetrical, a rotor and a stator which are arranged on a main shaft are disc-shaped, disc surfaces are parallel, and the rotor and the stator are correspondingly arranged; the rotor is installed on the main shaft to serve as a rotating body and corresponds to the permanent magnet steel circumferentially distributed on the disc face of the rotor, rotor tooth grooves are located on the disc face and are perpendicular to the main shaft, stator grooves are semi-closed pear-shaped grooves, the widths of the grooves are equal to the inner diameter and the outer diameter of the stator, and teeth are wide at the outer diameter and small at the inner diameter. The stator windings are embedded in tooth grooves distributed in the circumferential direction of the disc face of the stator armature, and the permanent magnets obliquely pass through a stator groove pitch. The back-to-back double-disc permanent magnet motor is adopted to directly drive the oil pumping unit connecting rod, so that energy loss in the mechanical transmission process is reduced, unnecessary mechanical friction is reduced, and the overall efficiency of a system is remarkably improved.

The invention discloses a double-layer plate type rigid self-sealing high-temperature heat source dissipation and propagation isolation device, and belongs to the technical field of industrial gate valves. The flat gate valve solves the problem of smoke leakage due to the fact that a large gap is reserved between a gate door and a door frame of an existing common flat gate valve. Comprising a shell, a door frame, a door cover, a Y-shaped guide groove, a heat preservation sealing structure and an isolation door. The shell is arranged in an external flue and is a rectangular frame, an opening is formed in the top face of the shell, the door cover detachably covers the opening in the top face of the shell, the door frame is embedded into the middle of the shell and is a rectangular frame, a Y-shaped guide groove is formed in the top end of the door frame, and heat preservation sealing structures are installed at the left end, the right end and the bottom end of the door frame. The Y-shaped guide groove is a vertical through groove, and a U-shaped groove is formed in the heat preservation sealing structure. The isolation door telescopically penetrates through the Y-shaped guide groove in the vertical direction and then is detachably clamped in the U-shaped groove of the heat preservation sealing structure. And the requirement of preventing high-temperature flue gas from dissipating is met. The device is used for isolating smoke.

This invention provides a valve sleeve spiral positioning and guided electro-hydraulic proportional servo valve. The electro-hydraulic proportional servo valve includes a spool valve assembly, an oil port changing plate at the left end of the spool valve assembly, and an electric actuator at the right end of the spool valve assembly. A valve core that can slide in the axial direction is disposed inside the spool valve assembly, and the valve core portion is inserted into the electric actuator. A guide-stage valve sleeve is rotatably connected inside the electric actuator, and the guide-stage valve sleeve is connected to the valve core insertion portion. A guide structure is provided between the valve core insertion portion and the guide-stage valve sleeve. This invention successfully reduces the moment of inertia, enabling the motor to drive the valve core movement with lower torque output. Furthermore, this invention can also reduce the subsequent maintenance costs of the servo valve.

The utility model discloses an automobile tail door supporting rod assembly, an automobile tail door and a vehicle, the automobile tail door supporting rod assembly comprises a driving supporting rod assembly and / or a driven supporting rod assembly, the driving supporting rod assembly is at least arranged on one side of the automobile tail door, and the driven supporting rod assembly is at least arranged on the other side of the automobile tail door. The driving supporting rod assembly or the driven supporting rod assembly is arranged on the other side of the automobile tail door; according to the automobile tail door supporting rod assembly, due to the fact that at least one side of the driving supporting rod assembly is arranged, the problem that manual opening and closing are strenuous is solved, mechanical friction is reduced, abnormal sound generated by friction is eliminated, the electric function is achieved, the sense of science and technology is improved, the product competitiveness is improved, and the automobile tail door supporting rod assembly is suitable for tail doors of different versions and weights; the production cost is saved, the weight of the vehicle is reduced, and redundant design is avoided.

The invention discloses a wide-operating-condition year-round refrigeration type evaporative cooling magnetic suspension refrigeration unit and a control method, comprising a plurality of direct evaporation coils, wherein the output ends of the plurality of direct evaporation coils are connected to the inlet end of a vapor-liquid separator after being collected into one pipeline through a plurality of pipelines, the gas outlet and the auxiliary gas outlet of the vapor-liquid separator are respectively connected to the air inlet and the air supply port of the magnetic suspension compressor through pipelines, the exhaust port of the magnetic suspension compressor is connected to the inlet end of the evaporative cooling condenser through pipelines, the outlet end of the evaporative cooling condenser is connected to the inlet end of the liquid storage tank through pipelines, the outlet end of the liquid storage tank is connected to the inlet end of the filter drier, and the outlet end of the filter drier is respectively connected to the liquid injection interface of the magnetic suspension compressor and the inlet ends of a plurality of direct evaporation coils through pipelines. The evaporation temperature range of the unit of the invention can be adjusted within the range of -5°C to 18°C, which can meet the needs of multiple operating conditions. The magnetic suspension compressor uses magnetic suspension technology to reduce the mechanical friction of moving parts, which greatly improves the service life of the unit.

The utility model relates to medicine capsule feeding equipment which comprises a feeding outer cover and a magnetic suspension system, a partition plate is fixedly installed in the feeding outer cover, a feeding pump is arranged on the top of the partition plate, and feeding pump handles are movably installed on the front side and the rear side of the top of the partition plate. According to the medical capsule feeding equipment, the feeding equipment is divided into two parts, namely the feeding system and the magnetic suspension system, the feeding system is driven to work through the magnetic suspension system, the magnetic suspension system can push plunger rods on the two sides to achieve piston movement in a feeding pump to conduct feeding operation, transmission boxes are arranged separately for feeding, and the feeding efficiency is improved. And the magnetic suspension system is adopted, lubricating oil does not need to be filled, so that the interior of the whole feeding equipment is clean and convenient to clean, the medicine cannot be polluted in the filling process, the capsule medicine preparation requirement is better met, the manufacturing quality is improved, the friction of magnetic suspension to machinery is small, and the service life of the feeding equipment is effectively prolonged.

The invention relates to the technical field of fertilizer production, in particular to a granulation device for producing a special fertilizer containing mannan oligosaccharide, which comprises a base, a granulation mechanism, a spraying assembly, a driving motor, a stirring mechanism and a screening assembly, the granulation mechanism is mounted on the base and is used for providing a sealed space for cooperating with the stirring mechanism for granulation; the spraying assembly is mounted on the side surface of the granulation mechanism, and the spraying assembly is used for spraying fed materials, so that powder raw materials are easy to granulate; the driving motor is mounted on the side surface of the spraying assembly and is used for driving the stirring mechanism to rotate; the stirring mechanism is pressed in the middle of the granulation mechanism, the stirring mechanism rotates to complete granulation, and a rotating shaft in the granulation mechanism is driven to rotate to provide power for the screening assembly; the screening assembly is installed in the granulation mechanism and blocks unqualified fertilizer particles in the granulation mechanism so that the unqualified fertilizer particles can be formed again.