118 results about "Three phase asynchronous motor" patented technology

The invention relates to the technical field of preparation and purification of phenolic resin, and discloses a phenolic resin impurity separation device for production, which comprises a filter chamber, an inner cylinder is fixedly mounted in the filter chamber, a steam clamping cavity is arranged between the inner wall of the filter chamber and the outer wall of the inner cylinder, and a mixing chamber is fixedly mounted on the upper side in the inner cylinder. A centrifugal cylinder is movably installed on the lower side of the interior of the inner cylinder, a filter screen is fixedly installed at the bottom end of the mixing chamber, a three-phase asynchronous motor is fixedly installed in the middle of the top end of the filter chamber, and the driving end of the three-phase asynchronous motor extends into the filter chamber and is fixedly provided with a movable shaft; and a spiral paddle is fixedly mounted on the outer diameter section, positioned in the mixing chamber, of the movable shaft. According to the invention, the period is shortened through temperature control, energy conservation and enhanced mixing, the purity is improved through multi-stage separation, the labor is reduced through automatic operation, the structure is exquisite, the adaptability is wide, and the phenolic resin impurity separation efficiency and quality are comprehensively improved.

The invention relates to an energy efficiency prediction method and system based on a three-phase asynchronous motor. According to the method, an equivalent circuit model based on a motor physical mechanism is constructed, and theoretical current and ideal loss are generated to serve as benchmark references; voltage and current signals of actual operation of the motor are collected in real time, and vector subtraction is carried out on actually measured current and theoretical current to obtain difference current signals; blind source separation processing under physical constraint is applied to the difference signal, independent components representing different physical loss sources are decoupled, and additional power of the independent components is quantified; and the ideal loss, the additional loss and the output power are fused to realize dynamic accurate prediction of the real-time energy efficiency of the motor. According to the scheme, through the synergistic effect of differential driving and a physical mechanism, penetrability diagnosis of loss roots such as power grid interference and mechanical degradation is achieved, and the self-adaptive precision of energy efficiency prediction under variable working conditions is improved more remarkably.

The invention discloses a high-efficiency explosion-proof three-phase asynchronous motor, which comprises a motor, the motor comprises a shell, a stator, a rotor and a rotating shaft, the outer wall of the driving end of the rotating shaft is fixedly connected with a compression fan, the shell is provided with backflow channels, and the backflow channels are annularly distributed on the shell in an array manner. The two ends of the shell communicate with the left end and the right end of the shell correspondingly, so that airflow forms a closed heat exchange loop in the shell; a heat conduction connecting frame is arranged between the inner wall of the shell and the stator, extends to the left end of the stator and is provided with a shunting cover; the invention belongs to the technical field of motors, aims to solve the problem that in the prior art, the temperature of internal parts of a motor shell cannot be effectively conducted to the shell, and local heat accumulation is likely to be generated, and achieves the technical effects that airflow is divided into two strands through a flow dividing cover, and the inner strand of airflow directly cools the left end of a rotor and the left end of a stator through an exhaust port; the outer airflow strengthens cooling of the outer wall of the stator, and accurately distributes the airflow to the end part of the rotor / stator with the most serious heat accumulation.

The invention discloses a pole-changing multi-speed three-phase asynchronous motor with a dust-free temperature control function, and relates to the field of pole-changing multi-speed three-phase asynchronous motors. The pole-changing multi-speed three-phase asynchronous motor comprises a motor body, a plurality of heat dissipation copper plates are arranged on the outer surface of the motor body at equal intervals in the circumferential direction, a sealing cylinder is arranged on the motor body, and a conical partition plate is arranged in the sealing cylinder; and the interior of the sealing cylinder is divided into two independent cavities by the partition plate. Through driving of the output shaft of the motor main body, the functions of efficient dust removal, heat dissipation and automatic reset are achieved, the scraping frame collects dust on the filter plate into the discharging groove, and secondary diffusion is prevented; the turbine rotates to generate negative pressure, air flow is promoted, heat is taken away, and effective cooling is achieved; the vibration design enhances the dust removal effect; when operation is stopped, all the parts automatically reset under the action of the springs, structural stability is guaranteed, equipment operation efficiency is improved, the service life is prolonged, operation is convenient, and environment friendliness and reliability are achieved.

The utility model discloses a novel rapid disconnecting switch type electric braking device, which comprises an isolated-phase enclosed busbar cylinder, a main loop conductor, a static contact, a movable guide rod, a short-circuit copper bar, a transmission mechanism, an operating mechanism, a control box and the like, and is characterized in that the electric braking device is in three-phase linkage control, and is in three-phase short circuit at the tail end of the device to form braking short-circuit current; contact of a moving contact and a static contact of a main loop of the device is designed in a sliding connection mode, the transmission mechanism integrally adopts a swing rod mode to drive a moving guide rod to ascend or descend, and the operating mechanism is composed of a three-phase asynchronous motor, a gear reducer, an energy storage assembly, a crank arm assembly and other elements. And the transmission mechanism is driven by the external swing arm and the connecting rod to perform quick opening and closing actions.

The purpose of the present invention is to provide an inverted modular low-speed engine connecting rod bearing test platform machine, including an upper box module and a lower box module, the upper box module is installed on the lower box module, and a three-phase asynchronous motor, a flywheel brake module, a reducer module, and a core motion module are installed in the lower box module. The three-phase asynchronous motor drives the flywheel brake module, and the flywheel brake module drives the reducer module. The core motion module includes a core module bracket, a hydraulic cylinder system, an eccentric shaft, a test connecting rod, and a test bearing are installed in the core module bracket. The hydraulic cylinder system is connected to the test connecting rod, and the test connecting rod is installed with a test bearing and connected to the eccentric shaft. The left support bearing seat and the right support bearing seat are respectively installed on the core module bracket, and the eccentric shaft is installed in the left support bearing seat and the right support bearing seat. The present invention can test the fatigue strength and life limit of the bearing through the testing machine, and qualitatively analyze the bearing life and fatigue limit through the test results.

The invention discloses a three-phase asynchronous motor with a cooling medium supplementing function, and relates to the technical field of motors. The invention provides a three-phase asynchronous motor with a cooling medium supplementing function, which comprises a machine body and the like, the machine body is rotatably connected with an output shaft, the machine body is fixedly connected with a protective shell, the protective shell is rotatably connected with a rotating fan, the machine body is fixedly connected with a mounting plate frame, the mounting plate frame is fixedly connected with a liquid rotating box, and the machine body is fixedly connected with a hollow heat conducting plate. The installation plate frame is fixedly connected with paired liquid storage tanks, the machine body is fixedly connected with an air cylinder and a telescopic frame, the telescopic end of the telescopic frame is fixedly connected with a movable frame, and the output shaft is fixedly connected with an eccentric block. Through the liquid storage tank, the eccentric block and other parts, the cooling medium can circularly flow by means of the power of the motor, and the cooling medium can be automatically supplemented when the cooling medium in the hollow heat conduction plate and other parts is lost, so that the cooling effect of the liquid cooling system is ensured; and extra power source driving and manual cooling medium supplementing are avoided.

The utility model discloses a three-phase asynchronous motor with a high-efficiency heat dissipation dustproof structure, which comprises a three-phase asynchronous motor main body, a mounting mechanism arranged at the bottom of the three-phase asynchronous motor main body, an output mechanism arranged at one end of the three-phase asynchronous motor main body, and a heat dissipation mechanism arranged on the outer side of the three-phase asynchronous motor main body. The heat dissipation mechanism comprises axial heat dissipation fins, spiral heat dissipation fins, a mounting shaft, a fastening bolt and a heat dissipation fan; a protection mechanism is arranged on the side wall of the three-phase asynchronous motor main body; the protection mechanism comprises a mounting block, a protection cover, a mounting stud and honeycomb heat dissipation holes, a first sealing mechanism is arranged on the inner wall of the protection cover, and a second sealing mechanism is arranged on the side wall of the protection cover; the outer surface heat dissipation air channel of the three-phase asynchronous motor is optimized through the additionally arranged spiral heat dissipation fins, the heat dissipation efficiency is improved, the protective cover and the air inlet and outlet part are sealed and protected through the first sealing mechanism and the second sealing mechanism, the risk that dust enters the protective cover can be reduced, and the three-phase asynchronous motor is suitable for severe working conditions such as mines and spinning.

The invention belongs to the technical field of motors, and discloses an explosion-proof three-phase asynchronous motor with a cooling structure, which comprises a motor shell and an output shaft arranged in the motor shell, the output shaft is externally connected with a rotor, the inner wall of the motor shell is connected with a stator coil matched with the rotor, and the outer wall of the motor shell is provided with an annular heat exchange groove. The upper end of the outer wall of the motor shell is provided with a liquid inlet groove. According to the explosion-proof three-phase asynchronous motor with the cooling structure, efficient heat exchange is achieved through the closed-loop liquid cooling channel design, the annular heat exchange grooves in the outer wall of the motor shell are communicated with the liquid inlet grooves and the liquid outlet grooves in the upper end and the lower end to form a complete cooling liquid circulation path, and the multiple heat exchange structures can ensure that heat is evenly transmitted and dissipated; the problem of local overheating caused by insufficient heat dissipation area of traditional natural heat dissipation is avoided, the heat management efficiency of the motor core component is remarkably improved, and the liquid cooling circulation channel is directly arranged in the motor shell, so that compared with a traditional external heat dissipation structure, the heat dissipation efficiency is high.

The invention relates to the technical field of coal mine slurry pumps, and particularly discloses a slurry pump truck for coal mine directional drilling. An energy accumulator assembly, a slurry pump assembly, a high-pressure filtering assembly, a multi-way reversing valve assembly, an oil tank assembly, a mining flame-proof LED locomotive lamp, a coal mine underground flame-proof three-phase asynchronous motor, a mining flame-proof and intrinsically safe vacuum electromagnetic starter and an installation platform similar to a table structure are sequentially arranged on a platform on the upper surface of the frame assembly from left to right. A pilot operation assembly, a portable methane detection alarm instrument, a mining flame-proof type scram button and a mining flame-proof type control button are fixedly installed on the installation platform through bolts. The technical problems that in the prior art, in order to achieve high-flow and high-pressure slurry conveying under the coal mine underground condition, the double-pump design with larger flow and pressure is adopted or the power of a pump body is improved, and consequently pollution and degradation acceleration of pump truck power hydraulic oil are caused are solved.

The utility model relates to motor heat dissipation technical field, and disclose the heat dissipation device for three-phase asynchronous motor, including motor, the motor is fixedly connected with stator in, the stator is rotatably connected with motor rotating shaft, one end of motor rotating shaft is fixedly connected with fan blade, the front end of motor rotating shaft is sleeved with the jet nozzle, the fan blade and jet nozzle are arranged respectively in the both ends of stator, the motor inner wall is opened with a plurality of the connection hole that sets up in the circumference, one end of jet nozzle is movably sleeved with the air inlet cover, the jet nozzle is fixedly sleeved on motor rotating shaft. The device can spray part of air into the motor shell to the front end of stator, effectively cools the front end of stator, to this guarantee the heat dissipation effect of stator front end, and the jet nozzle can rotate with rotor, make the jet orifice rotate along with, thereby make the airflow that the jet orifice sprays can cover the different positions of stator front end, effectively improved the uniformity of stator front end cooling.

The utility model discloses polishing equipment for box machining, and relates to the technical field of box machining. Comprising a rack, a feeding mechanism is installed on the rack, polishing mechanisms are installed on the portions, located on the front side and the rear side of the feeding mechanism, of the rack, the feeding mechanism comprises a linear module, a platen, a back-to-back type air cylinder and clamping plates, the platen is installed on the linear module, the back-to-back type air cylinder is installed at the bottom of the platen, and the clamping plates are installed on piston rods on the two sides of the back-to-back type air cylinder. According to the grinding equipment for box body machining, a box body is placed on the table plate, the back-to-back type air cylinder is used for driving the clamping plates to clamp and fix the box body, the propelling air cylinder is used for driving the carborundum roller to get close to the side face of the box body for tool setting, and the three-phase asynchronous motor is used for driving the carborundum roller to rotate at a high speed and make contact with the side face of the box body for grinding; in the polishing process, the linear module is used for feeding, the two side faces of the box can be polished at the same time, the automation degree is high, and the polishing efficiency is high.

The utility model relates to the field of strength testing machines, in particular to a variable frequency speed regulation three-phase asynchronous motor strength testing machine which comprises a box body and two first gears, the outer surface of each first gear is meshed with a second gear, and the outer surfaces of each first gear and each second gear are rotationally connected with the box body. A first gear is meshed with a corresponding second gear, so that the second gear is driven by the first gear, at the moment, a rotating disc starts to rotate, a second inserting hole in a supporting rod and a first inserting hole in the corresponding rotating disc at different positions are placed on the same central axis, and at the moment, an internal threaded column is inserted along the corresponding first inserting hole; and then a stud is inserted from the other side of the rotating disc, and the stud is rotated to be fixedly connected with the corresponding internal threaded column, so that the supporting rod can be fixed according to different positions, and the effect that the amplitude can be adjusted by fixing the supporting rod at different positions on the rotating disc is achieved.

1. Name of the product in this design: Three-phase asynchronous motor. 2. Application of this design: This design is mainly used to drive production machinery and equipment. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

The invention provides a three-phase asynchronous motor database construction method and system, and the method comprises the steps: obtaining the source data of a three-phase asynchronous motor, and the source data comprises the common parameters, geometric dimensions and performance parameters of the motor; analyzing a data dependency relationship among the common parameters, the geometric dimensions and the performance parameters to determine a determination condition of each data set; creating a plurality of correlative data tables based on the data dependency relationship, wherein the data tables comprise a geometric dimension table group for storing geometric dimensions of the motor and a performance parameter table for storing performance parameters of the motor; and constructing an entity-relationship model of the database based on the association relationship among the plurality of data tables, and generating an SQL statement for data query. According to the technical scheme provided by the invention, structured and standardized storage of the motor data is realized, data redundancy is remarkably reduced, data reusability and query efficiency are improved, and industrial digital application is effectively supported.

The utility model relates to a tensioning hydraulic system which comprises a hydraulic oil tank, a tensioning oil cylinder and a three-position four-way electromagnetic directional valve, a P port of the three-position four-way electromagnetic directional valve is communicated with the hydraulic oil tank through a first pipeline, and a T port of the three-position four-way electromagnetic directional valve is communicated with the hydraulic oil tank through a second pipeline. A port A of the three-position four-way electromagnetic directional valve is communicated with a rodless cavity of the tensioning oil cylinder through a third pipeline, a port B of the three-position four-way electromagnetic directional valve is communicated with a rod cavity of the tensioning oil cylinder through a fourth pipeline, the first pipeline is provided with a first pump and a first one-way valve, and an outlet of the first one-way valve is communicated with the hydraulic oil tank through a fifth pipeline. The fifth pipeline is provided with a second pump and a second reversing valve, an inlet of the second reversing valve is communicated with the hydraulic oil tank through an electromagnetic overflow valve or a combination valve, and the combination valve is composed of a two-position four-way electromagnetic reversing valve and a pressure regulating valve. And the working efficiency is greatly improved under the condition that the power of the three-phase asynchronous motor is not increased.

The utility model discloses an asymmetric cooperative control three-phase balance motor soft starter, comprising a three-phase AC power supply input end, a power adjusting unit, an output end connected to a three-phase asynchronous motor, and a main controller which are connected in sequence. The power adjusting unit comprises an A-phase control module which is internally provided with a first thyristor at least controlled by a main controller; the B-phase control module is internally provided with a pair of antiparallel second thyristors controlled by the main controller; and the C-phase control module is internally provided with a pair of third thyristors which are controlled by the main controller and are reversely connected in parallel. The main controller cooperatively controls the conduction angles of the first thyristor, the second thyristor pair and the third thyristor pair in the starting process of the motor by outputting a control signal so as to adjust the voltage applied to the motor and improve the balance of the three-phase output voltage. According to the utility model, the three phases are controlled, so that the three-phase balance during starting is effectively improved, and the vibration and noise of the motor are reduced.

This invention belongs to the field of heat dissipation technology for three-phase asynchronous motors, specifically a heat dissipation structure for three-phase asynchronous motors, including a housing, stator, main shaft, main shaft bearing, air-cooled heat dissipation assembly, water-cooled heat dissipation assembly, and a linkage lubrication assembly. Addressing the shortcomings of existing three-phase asynchronous motors, such as a single heat dissipation method, cumbersome lubrication maintenance, and insufficient heat dissipation adaptability under different operating conditions, this invention effectively solves the technical problems of low heat dissipation efficiency, inconvenient bearing lubrication maintenance, and poor heat dissipation adaptability under low-speed and high-speed conditions by combining air-cooling and water-cooling dual heat dissipation modes with an automatic lubrication mechanism linked to the heat dissipation process. It achieves integrated control of heat dissipation and lubrication, improving the stability and reliability of the three-phase asynchronous motor operation, extending the service life of the three-phase asynchronous motor and its components, reducing the maintenance cost of the three-phase asynchronous motor, and adapting to the operating requirements of three-phase asynchronous motors in various industrial production scenarios.

The utility model discloses a molten plastic heating and stirring system of an injection molding machine, which is characterized by comprising a three-phase power supply; the three-phase power supply is connected with a circuit breaker QF; the circuit breaker QF is connected with a main circuit and a control circuit; wherein the main circuit comprises a three-phase asynchronous motor M, a heating resistor R, a first contactor KM1, a second contactor KM2, a third contactor KM3, a first thermal relay FR1 and a second thermal relay FR2; the control circuit comprises a starting control loop, a forward stirring control loop, a reverse stirring control loop and a heating control loop; the three-phase asynchronous motor M is used for stirring molten plastic in the injection molding machine; the first contactor KM1 is used for controlling forward stirring of the motor; the second contactor KM2 is used for controlling reverse stirring of the motor; and the third contactor KM3 is used for controlling the operation of the heating resistor R. The injection molding machine has the following beneficial effects that automatic heating and forward and reverse alternate stirring control of molten plastic in the injection molding machine are realized.

The utility model relates to the technical field of motors, and discloses a three-phase asynchronous motor convenient to disassemble and assemble, which comprises a motor main body, one side of the motor main body is connected with a rotating shaft, a lower shell is arranged below the motor main body, and an upper shell is arranged above the motor main body. Fixing mechanisms are arranged between the two sides of the lower portion of the upper shell and the lower shell. The motor shell is composed of the upper shell body and the lower shell body, when the shell body needs to be disassembled, only the rotating handle needs to be rotated, the rotating handle is rotated to drive the bidirectional threaded rod to rotate, and the bidirectional threaded rod rotates to drive the two sliding plates to move oppositely in the sliding holes. The sliding plate moves to drive the limiting plate to move, and then the upper shell is moved upwards to pull out the limiting plate along the limiting sliding hole.

The present application belongs to the technical field of spare parts management, and discloses a spare parts management method for maintenance of a three-phase asynchronous motor, which comprises the following steps: preparing basic data information, establishing a standard subordinate relationship between the three-phase asynchronous motor and the spare parts; processing the basic data and arranging them in order; spare parts classification and control, combining the AHP-ABC method and the characteristic data clustering method; screening the number of important three-phase asynchronous motors on the production line; and inventory control and maintenance plan of important motor spare parts. The present application improves the reliability and accuracy of the three-phase asynchronous motor on the production line, and has good stability.

1. Name of the designed product: intelligent phase control speed controller (mechanical size M350). 2. Use of the designed product: the product is mainly used for speed control of three-phase asynchronous motor. 3. Design points of the designed product: in shape. 4. Picture or photo that best shows the design points: perspective view.

The utility model relates to the field of single-phase-to-three-phase power supplies, in particular to a portable single-phase-to-three-phase electrical control power supply device, which comprises a two-pole single-phase circuit breaker, a frequency converter, a three-phase autotransformer, a single-phase transformer, a two-pole circuit breaker and a three-pole circuit breaker, the input end of the two-pole single-phase circuit breaker is connected with an external alternating-current power source, the output end of the two-pole single-phase circuit breaker is connected with the input end of the frequency converter, the output end of the two-pole single-phase circuit breaker is further connected with the input end of the single-phase transformer, and the output end of the frequency converter is connected with the input end of the three-phase autotransformer. The output end of the three-phase autotransformer is connected with the input end of the three-pole circuit breaker, the output end of the three-pole circuit breaker is connected with the three-phase asynchronous motor, the output end of the single-phase transformer is connected with the input end of the two-pole circuit breaker, and the output end of the two-pole circuit breaker is connected with the control circuit. The device is small in size and convenient to install, and the cost is greatly reduced.

The utility model relates to the field of three-phase asynchronous motors, in particular to a stainless steel type three-phase asynchronous motor, which comprises a bottom frame, a connecting mechanism arranged at the upper end of the bottom frame, a three-phase asynchronous motor main body arranged at the upper end of the connecting mechanism, and a heat dissipation mechanism used for carrying out heat dissipation treatment on the inside of the device. After the device is used for a long time, if dust accumulated and adhered to the surfaces of the two filter plates easily affects heat dissipation in the device, a handle on a first cleaning brush is pulled through sliding connection of a sliding block and a bottom frame, so that the first cleaning brush and a second cleaning brush on the sliding block move along with the sliding block, and the heat dissipation in the device is easily influenced; the first cleaning brush and the second cleaning brush are used for cleaning dust attached to the surface of the filter plate, so that the filter plate can be conveniently cleaned, and heat dissipation in the device is prevented from being influenced by blockage of the filter plate.

The utility model relates to the technical field of grouting, and discloses an accurate grouting flow control mechanism which comprises a bottom plate, a grouting assembly, a control assembly and a first heat dissipation assembly are arranged at the top of the bottom plate, the grouting assembly comprises a grouting pump, the bottom of the grouting pump is fixedly connected to the top of the bottom plate, a driving assembly is arranged on one side of the grouting pump, and a second heat dissipation assembly is arranged on the other side of the grouting pump. The driving assembly comprises a variable-frequency and variable-speed three-phase asynchronous motor, the bottom of the variable-frequency and variable-speed three-phase asynchronous motor is fixedly connected to the top of the bottom plate, and the output end of the variable-frequency and variable-speed three-phase asynchronous motor is fixedly connected to one side of the grouting pump. According to the utility model, through the control of the frequency converter, the accurate flow control of the grouting slurry is realized, compared with the traditional grouting equipment, the novel function of accurate flow control is realized, the use performance is better, the rotating speed and the power of the motor can be adjusted according to the actual requirement through the frequency conversion speed regulation technology, and the efficient and energy-saving effects are realized.

The utility model discloses a reinforced concrete door leaf platform, which relates to the technical field of door leaf manufacture and comprises a platform panel, elevators are fixedly mounted at four corners of the bottom of the platform panel respectively, and a speed reducer and a three-phase asynchronous motor are fixedly connected to the center of the bottom of the platform panel. An input shaft of the speed reducer is fixedly connected with an output shaft of the three-phase asynchronous motor, the front side and the rear side of the output shaft of the speed reducer are each fixedly connected with a transmission shaft, the tail ends of the transmission shafts are connected with a commutator, and the commutator is fixedly connected to the bottom of the platform panel. A connecting rod is connected between the reverser and each of the left and right adjacent elevators; and a plurality of positioning mechanisms are mounted at the bottom of the platform panel. The prefabricated door leaf can be horizontally jacked up through the four lifters, then the purpose of horizontal demolding of the prefabricated door leaf is achieved, damage to the corners of the concrete prefabricated door leaf is avoided, the demolding work efficiency is improved, and use is very convenient.

This utility model relates to a three-phase asynchronous motor for high-temperature environments, applicable to the field of electric motors. It includes a motor body, with a mounting plate fixedly connected to the upper end of the motor body. Two mounting shells are provided on the upper end of the mounting plate, and a lower mounting shell is fixedly connected to the mounting plate. A terminal block is fixedly connected to the inner bottom wall of the lower mounting shell, and multiple terminal heads are installed on the upper end of the terminal block. A pressure plate is fixedly connected to one end of each of the two mounting shells. Multiple outlet holes, corresponding to the multiple terminal heads, are chiseled at the front end of the pressure plate. A sealing strip is fitted onto the outer surfaces of the two pressure plates and the two mounting shells. A limit groove is chiseled at the end of the sealing strip near the mounting shell, and a limit strip is provided within the limit groove. This dual heat dissipation function significantly reduces the operating temperature of the junction box, avoiding long-term high-temperature operation, thereby reducing the risk of damage to internal components and effectively improving the stability and reliability of the motor operation.

The utility model discloses a novel grinding device which comprises a main shaft, a three-phase asynchronous motor and a silicon carbide ceramic lining, an inner taper sleeve is arranged on the main shaft, a front grinding seat is arranged on the inner taper sleeve, a rear grinding seat is arranged on the front grinding seat, and wear-resistant steel rod pins are arranged on the front grinding seat and the rear grinding seat. According to the utility model, the grinding structure is optimized, under the dragging of the motor, the grinding rod pin realizes high-speed rotation, the linear speed reaches 13-14m / s, and the rear grinding seat is of a hollow structure, so that when high-speed rotary and large-mass materials and grinding zirconium beads reach a grinding area due to larger centrifugal force, the constraint of high viscosity is effectively broken through, and the grinding efficiency is improved; by means of the characteristic of conical surface matching, large-torque transmission is achieved, and meanwhile the characteristic of being easy to disassemble is achieved.

The application belongs to the technical field of three-phase asynchronous motors, in particular to an explosion-proof three-phase asynchronous motor, which comprises a shell, the end of the shell is provided with a heat dissipation shell, and the lower part of the shell is provided with a cushion plate; a pair of air inlet pipes are symmetrically and communicatively arranged on the two sides of the heat dissipation shell; the explosion-proof three-phase asynchronous motor is provided with a filtering assembly in the air receiving box, in use, the first air pump draws the air outside into the air receiving box, the air is filtered by the filtering assembly in the air receiving box, then enters the heat dissipation shell through the air inlet pipe, and finally is discharged from the heat dissipation holes on the side of the heat dissipation shell, and the motor is cooled in the process; the dust in the air is filtered by the filtering assembly in the air receiving box, so that the dust is prevented from entering the motor and affecting the use of the motor, and the motor is prevented from malfunctioning due to a large amount of dust in the motor.

The present invention relates to the technical field of flameproof motor junction boxes, and specifically to a YBX4 high-efficiency flameproof three-phase asynchronous motor auxiliary temperature measurement junction box, comprising a junction box seat, a terminal block arranged inside the junction box seat, a wire-passing device fixed to the bottom of the junction box seat, four junction box buckets respectively provided on both sides of the junction box seat, and a junction box cover connected to the upper portion of the junction box seat, wherein the junction box seat and the junction box cover are hexagonal structures, the wire-passing device is connected to the bottom of the terminal, and the junction box bucket is provided with a clamping nut, a metal plug, a sealing ring, and a metal washer in sequence from the outside to the inside. The device of the present invention has excellent sealing performance, good wiring effect, simple structure, convenient wiring, and easy stator replacement. It can simultaneously meet the use requirements of the motor bearing and stator temperature measurement, ensuring the safety and reliability of the operation of the YBX4 high-efficiency flameproof three-phase asynchronous motor temperature measurement junction box.