79results about How to "Reduce RPM requirements" patented technology

The invention discloses a duplex winding dual-rotor motor, wherein an external stator and an inner stator, which are mutually independent, are used, and the stators are separated by a middle shell; the external stator is connected at the outside of the inner stator in a manner of sleeving, height of the motor can be configured to be very short, and an external motor and an inner motor can be configured to have different height according to different performance requirements; and the duplex winding dual-rotor motor can be manufactured by a simple technology, satisfies various application scenesand has high applicability. The invention also discloses a double-blade food processor using the duplex winding dual-rotor motor, and by respectively controlling rotation speed and rotation directionof a big shaft and a small shaft, a big shaft blade and a small shaft blade can be enabled to rotate in the same direction, rotate in reverse directions or rotate singly, smashing effect and stirringeffect both are excellent, a requirement on the rotation speed of each blade also can be lowered while rotation in reverse directions is executed, and thus, running noise is reduced; a base and a cupbody also can be configured into an integer, connection by a coupler is not needed, cost can be saved greatly, the technology is simplified greatly, and vibration and noise caused by connection by the coupler are also reduced.

The invention belongs to the technical field of machine transmission, and particularly relates to a three-gear planet speed change mechanism suitable for an electric vehicle. The speed change mechanism is composed of two planet rows, two gear-shifting brakes and one gear-shifting clutch. The first planet row and the second planet row are both internal and external meshed single planet rows; the first planet row is composed of a first sun gear, a first planet carrier, a first gear ring and four first planet wheels; and the second planet row is composed of a second sun gear, a second planet carrier, a second gear ring and four second planet wheels. The three-gear planet speed change mechanism has the beneficial effects that the transmission scope is large, the gear order ratio is relatively large, and the motor rotating speed requirement under the high-speed working condition is reduced through an overgear while the requirement of the electric vehicle for climbing an abrupt slope is met; and in addition, the transmission scheme is exquisite, the structure is simple, and the compact design is facilitated.

The invention discloses an automatic silk stocking toe sewing machine and a use method thereof. The automatic silk stocking toe sewing machine comprises a host machine, a movable socking plate, a machine head support, a machine head, a crotch cutting system, a stocking clamping system and the like, wherein the machine head support is independently driven by a lead screw motor, and the machine head support drives the machine head to change the sewing track; because the stocking casing is stationary when the stocking toe is sewn, a movable support drives the machine head to adopt an active sewing mode, thus the rotation speed of the machine head is reduced; and the stocking clamping system is used for clamping the stocking casing, so that the crotch cutting system carries out crotch cutting on the sewn stocking casing. In the invention, through simple man-machine conversation, multiple processes and multiple persons required by stocking toe sewing are changed into one-person operation; when ultra-thin or ultra-thick stockings are sewn, the problems of missed sewing, nonuniform spacing and the like are not generated, and the sewn stockings can accord with the toe arc lines of different crowds; and the crotch cutting is carried out under the state of clamping and tightening the stocking casing, thus the cut is straight and accurate, the artificial crotch cutting error is reduced, the working efficiency is greatly improved, the product quality is guaranteed and the raw materials are saved.

The invention belongs to the technical field of electric vehicle transmission, and specifically relates to a drive system of a double-motor double-shaft input speed changing box and a gear shifting control method of the drive system. The system comprises a drive motor I, a drive motor II and an electronic control mechanical automatic transmission. The electronic control mechanical automatic transmission comprises a first-gear gear set, a second-gear gear set, a third-gear gear set, a fourth-gear gear set, a coupling sleeve I, a coupling sleeve II, a transmission input shaft I, a transmission input shaft II and a transmission output shaft. The electronic control mechanical automatic transmission provides three gears for power output of the drive motor I and the drive motor II. By means of coupling of the drive motor I, the drive motor II and the electronic control mechanical automatic transmission and drive of the drive motor I and the drive motor II, shifting of three gears can be achieved. According to the system, the arrangement space of a finished vehicle is saved, the gears do not affect one another, the requirements for bearing and gear rotating speed are not high, and the life is long.

This invention discloses a rotary disc mechanic shutter of high repeating frequency and accuracy for switch controlling of light signals. A thin light-tight rotary disc with some holes is fixed on the generator spindle nose through clamp nut and axle sleeve. A photoelectric switch that fixed on the socket records the rotation information. A moveable photodiode probe is installed in the back of the disc where signal beams come through. The said mechanical shutter can be applied to some fields such as laser radar, laser ranging, laser space communication and laser satellite in self-adaptive optics.

The invention relates to a planetary series-parallel power system and a vehicle adopting the same. The planetary series-parallel power system comprises an engine, a motor I, a motor II, a front planetary line, a rear planetary line and a system output shaft, wherein a front sun gear is connected with the motor I, and is locked or released by a front locking clutch; a front planet carrier is in transmission connection with the engine; a rear sun gear is connected with the motor II; a rear planetary carrier of the rear planetary line is connected with the system output shaft; a front gear ring is connected with the rear sun gear of the rear planetary line; a rear gear ring is connected with a rear locking clutch used for locking or releasing the rear gear ring; a mode clutch used for enabling the rear planetary line to integrally rotate and enabling the rear gear ring, the rear planetary carrier and the rear sun gear to relatively and freely rotate when in combining or separating is arranged between or among two or more of the rear gear ring, the rear planetary carrier and the rear sun gear respectively. The planetary series-parallel power system can conveniently realize the mode switch of the high-low speed and avoid the problem of power circulation.

The embodiment of the invention provides a tin phosphide / expanded graphite negative electrode composite material of a sodium-ion battery and a preparation method of the tin phosphide / expanded graphitenegative electrode composite material. The material is formed by coating the surface of spherical tin phosphide with graphite flakes stripped from expanded graphite and integrally loading the spherical tin phosphide on the stripped graphite flakes; specifically, tin tetrachloride is dissolved in deionized water containing a surfactant CTAB, urea, ammonium fluoride and titanium sulfate, the temperature is raised to a preset temperature, and a tin hydroxide precursor is prepared based on hydroxyl ions OH<-> generated after CTAB, NH<4><+>, F<->, titanium sulfate and urea are decomposed; sodium hypophosphite is taken as a phosphorus source, gas-phase phosphorization is performed on the tin hydroxide precursor to generate spherical tin phosphide; and ethanol, tin phosphide and expanded graphite prepared by chemical oxidation are added into a ball milling tank for wet ball milling to obtain the tin phosphide / expanded graphite negative electrode composite material of the sodium-ion battery,so that the tin phosphide / expanded graphite negative electrode composite material can be used for relieving volume expansion in a charging and discharging process and reducing capacity loss in a circulating process.

The invention relates to an airlift air stirring multi-sublayer circulating extraction device and an airlift air stirring multi-sublayer circulating extraction method. The device comprises an outer pipe, an outer center pipe and an inner center pipe; and an inner pipe is arranged between the outer pipe and the outer center pipe. The method comprises the following steps: firstly, mixed solution to be extracted is added into the extraction device and then a light phase is added; after the filling of the air is started, air bubbles are generated in the inner center pipe, the small circulation of sucking down the light phase is carried out between the two center pipes and simultaneously the light phase is crushed; then the solution in the inner and the outer pipes starts to participate in circulation and the light phase is further crushed; and after a certain time, light phase drops are totally mixed with a mixed solution phase to form the stable multi-sublayer circulation. The airlift air stirring multi-sublayer circulating extraction device and the airlift air stirring multi-sublayer circulating extraction method are particularly suitable for the process of uniformly dispersing the light phase into a heavy phase in an intervallic phase ratio system which has an oil-water phase ratio of less than 1:1,000 and is easy to emulsify; the operation can be continuously carried out under the condition that the two-phase interface is clear; the emulsification phenomenon is avoided; the airlift air stirring multi-sublayer circulating extraction device and the airlift air stirring multi-sublayer circulating extraction method have low equipment investment, are easy to operate, have low power consumption and small shear force for the solution and are beneficial to keeping the activity of biomacromolecules.

The invention provides an electromagnetic ball mill. The electromagnetic ball mill comprises a bracket, a driving part, a cylinder body, a cylindrical grinding container and magnetic grinding bodies.The cylinder body is fixed to the bracket. Two arc-shaped electric conductive strips are arranged on the top of the inner sidewall of the cylinder body. The outer side of the cylinder body is providedwith a power connector communicating with the electric conductive strips. One end of the grinding container is inserted into the cylinder body to be rotatably connected with the cylinder body, and the other end of the grinding container is rotatably connected with the bracket. An electromagnet is mounted on the inner sidewall of the grinding container. The peripheral surface of the grinding container is provided with two conductive contacts corresponding to the electromagnetic conductive strips. One end of each conductive contact abuts against the inner sidewall of the cylinder body, and theother end of each conductive contact is electrically connected with the electromagnet. The grinding bodies are placed in the grinding container. The electromagnetic ball mill reduces the requirementsfor the rotating speed and can raise the grinding bodies to the highest point conveniently and improve the grinding effect.

The invention relates to an extraction apparatus, in particular to an extremely low concentration extraction apparatus. The technical problem to be solved by the present invention is to provide an extremely low concentration extraction apparatus which is low in power consumption, has little shear force to solution and is advantageous for maintaining the activity of biological macromolecules. In order to solve the above technical problems, the present invention provides the extremely low concentration extraction apparatus comprising a fixing plate, a motor, a bearing seat, a rotary rod, a drum, a first wire rope, a first guide wheel, an extraction tank, a first spring, a filter frame, the first baffle, etc. The left side of the upper front of the fixing plate is connected to the motor, and the output shaft of the motor is connected with the rotary rod through a coupling rod. The extremely low concentration extraction apparatus utilizes small balls with extractant attached to achieve a lower concentration of extraction of the solution to be extracted, so that not only the extraction work can be successfully completed, but also the shear strength of the solution can be effectively reduced.

The invention discloses a rotary piston pump and relates to a rotary piston pump for continuously changing pressure at water inlet and outlet ends of a pump cavity through a rotary piston structure so as to fulfill the aims of pumping and sucking water. In order to overcome the defects in the prior art, the invention provides a rotary piston pump with the advantages of high efficiency, high pressure, simple structure, excellent performance and wide application range. In order to fulfill the aims, the technical scheme is that: the rotary piston pump comprises a hollow shell, wherein two ends of the shell are open and are respectively provided with a front cover and a rear cover with sealing performance; the upper part of the shell is respectively provided with a water inlet and a water outlet; an isolated body is arranged between the water inlet and the water outlet; a rotating device is arranged inside the shell; and the water inlet is separated from the water outlet through the rotating device and the isolated body. The rotary piston pump overcomes the defects of low efficiency and low pressure in the prior art, and can be applied to high-pressure fluid transmission on various occasions.

The invention discloses a process for extracting mycoprotein from a glutamic acid-fermented waste fluid and belongs to the technical field of processing of glutamic acid-fermented waste fluids. The process comprises the steps of 1) using production waste heat to heat the glutamic acid-fermented waste fluid to 80-120 DEG C, keeping the temperature for 20-40 min, and obtaining a modified bacteria solution; 2) pumping the modified bacteria solution into a centrifugal machine, obtaining deposits after centrifugation, and obtaining the mycoprotein. The process is simple and easy to operate, capable of saving energy consumption, environmentally friendly and applicable to large-scale industrial production, the extraction ratio of mycoprotein products extracted according to the process reaches 90-95%, and the water content is low.

The invention discloses a multistage blade mud pump for riserless subsea mudlift drilling. The multistage blade mud pump comprises driving impeller cover plates, driven impeller cover plates, radial blades, guide vanes, a driving shaft and the like. The radial blades are arranged between the driving impeller cover plates and the driven impeller cover plates and are discontinuous, namely a bladeless area is present; the driving impeller cover plates and the driven impeller cover plates are connected through connecting arms; inlet sections of the driving impeller cover plates and the driven impeller cover plates are properly transited to the radial direction in an arc form or a conical form; and a fluid medium is guided to the next stage of impeller through a guide vane. The multistage blade mud pump can deliver multi-phase flow media, is not blocked, and is wear-resistant and high in lift; and a flow-lift performance curve is flat, a working range is wide and the requirement on mechanical sealing property is low.

The invention discloses a gas-liquid mixing device which comprises: a conical pipe with a large upper part and a small lower part, wherein one or more liquid inlets are formed in the bottom of the conical pipe, so that liquid can enter an inner cavity of the conical pipe, the conical pipe can rotate under the driving of the driving mechanism, and an included angle is formed between the rotating axis of the conical pipe and the inner wall of the conical pipe, and a plurality of through holes are formed in the pipe wall of the conical pipe to serve as liquid outlets; a fan, which is fixedly connected with the conical pipe and can synchronously rotate with the conical pipe; an outer barrel that is fixedly arranged outside the conical pipe, so that the conical pipe can move relative to the outer barrel, wherein the outer barrel is shorter than the conical pipe, so that the bottom of the conical pipe extends out of the outer barrel from below, a gas-liquid mixing space being formed betweenthe outer cylinder and the conical pipe. The mixing device has the advantages of mild operation, low energy consumption, low noise and small appearance volume, and is especially suitable for familiesand occasions with narrow space and mute requirements. The invention further discloses a gas-liquid mixing method.

A short-distance moving vehicle is composed of a direct-current motor, a speed change mechanism, a gear, a rack, wheels, rolling bearings, pressure bearings, a storage battery, a charger control system and a controller. The short-distance moving vehicle has the functions of moving forwards, moving backwards, turning left, turning right and stopping; oil purification equipment of a transformer substation can be permanently placed on the short-distance moving vehicle and move in the transformer substation along with the vehicle; and an operator who follows the vehicle and is located beside the vehicle uses a wireless controller or control keys on the vehicle for carrying out moving operation with multiple motions, and therefore the labor intensity of a worker is greatly reduced.

The invention relates to a device which uses a motorcycle engine for pumping water. The position of a left crankcase cover of the engine which is over against a magneto fastening bolt is provided with a socket, the bottom of which is opened with a via hole which is communicated with an inner chamber of the engine. An internal link block is fixed in the socket on the left crankcase cover of the engine. The outer side of the internal link block is provided with a pump shell side cover by an adapter sleeve. The pump shell side cover is fixed with the pump shell. The pump shell is internally provided with an impeller which is sheathed on the outer end of a water pump shaft. The inner end of the water pump shaft sequentially passes through a centre hole of the water shell side cover, the centre hole of the adapter sleeve, the center hole of the internal link block and the via hole on the left crankcase cover of the engine, stretches into the engine, blocked and matched with the magneto fastening bolt. In the device, the water pump assembly is arranged in the position of the original left small cover of the engine by using motorcycles in farmers. The water drawing can be carried out by starting the engine. The water pump assembly is convenient to be carried and easy to be operated and lightens the burden of farmers while providing convenient and fast water drawing for the farmers.

The invention provides a fan. The fan comprises a motor, a first rotating shaft, a second rotating shaft, a first fan blade and a second fan blade; the motor comprises a stator, a first rotor and a second rotor which are mutually nested and can mutually rotate, and the first rotor and the second rotor mutually and independently rotate; the stator comprises a stator iron core and a stator winding wound on the stator iron core, and the first rotor and the second rotor are used for driving the first rotating shaft provided with the first fan blade and the second rotating shaft provided with the second fan blade to concentrically rotate correspondingly; and particularly, the first rotor is a reluctance rotor, the second rotor is a permanent magnet rotor, and the stator, the reluctance rotor and the permanent magnet rotor are sequentially nested from inside to outside or from outside to inside. According to the fan provided by the invention, dual-shaft dual-power rotation is achieved in themodes without mechanical differential speed and separation and reunion, the system integration degree is high, the power density is large, energy consumption is low, reliability is high, and noise issmall.

The invention is concerned with continuous and even milk drop product equipment with high flux. Under the airtight and high press condition, the stuff enters into the top of hollow cylinder and comes out form the lower part of side wall, and the bottom connects with the cylinder and both of them is settled. The sleeve outside of the hollow cylinder and connecting with turning wheel and the turning canister outside of the cylinder and connecting with the bottom of sleeve move together with the turning wheel, and the liquid is thrown from the hole on the side wall of turning canister to get the latex. This continuously disperses one phase into another phase with low speed and high flux to produce milk drop with even diameter. It is fit for keeping the active of bio-matter, such as protein, and is easy to apply to industry with small and even shearing stress for solution, low investment, and continuous operation, low requirement with the speed of motor and low power.

The invention provides an automobile hybrid power system, and belongs to the technical field of automobiles. The problems that an existing automobile engine shakes during intervention and retreating, the fuel economy is poor, reverse gear power is insufficient under the condition that the electric quantity of a power battery is insufficient, and a transmission is difficult to arrange due to the too long axial distance are solved. The automobile hybrid power system comprises an engine, a generator, a planetary gear train, a power transmission shaft and a driving motor in transmission connection with the power transmission shaft, an output shaft of the engine is in transmission connection with a gear ring, and a rotating shaft of the generator is in transmission connection with a sun gear. The hybrid power system further comprises a sun gear clutch, a planet carrier clutch and a brake capable of braking the planet carrier, the planet carrier clutch is used for achieving transmission connection or disconnection between the planet carrier and the power transmission shaft, and the sun gear clutch is used for achieving transmission connection or disconnection between the sun gear and the power transmission shaft. The automobile hybrid power system has the advantages of being good in NVH performance, good in fuel economy, high in reverse gear power performance and the like.

The invention relates to the technical field of speed reduction transmission, in particular to an improved type graduated circle difference speed reduction device which comprises a mounting body, an input shaft sleeve, a planetary gear group, an output circular sleeve and a first inner gear ring; the output circular sleeve is provided with a second inner gear ring; the mounting body is provided with a gear ring mounting cover which is put together with and fixedly connected with the mounting body; spline grooves are arranged on the inner wall of the gear ring mounting cover and the inner wall of the output circular sleeve respectively; and spline teeth are arranged on the first inner gear ring and the second inner gear ring and are inlaid into the corresponding spline teeth. The invention provides the improved type graduated circle difference speed reduction device which can be actually put on production and processing and is convenient to assemble; and the improved type graduated circle difference speed reduction device is relatively low on requirements for rotational speed of a motor spindle, smooth in running, higher in performance price ratio, small in size and long in service life, has the advantages of high transmission efficiency, convenience in disassembly, good rigidity and high transmission accuracy, is particularly wider in transmission ratio range and is more stronger in maneuverability of producing an adaptive speed reduction device.

The invention relates to a pump, in particular to a quantitative pump special for in-situ filtration of deep sea microorganisms. The quantitative pump comprises a pump body and a base, wherein a frontretainer and a rear retainer are oppositely arranged on the end surface of the base, and the top and bottom ends of the front retainer and the top and bottom ends of the rear retainer are connected with reciprocating lead screws through linear guide rods which are parallel to each other; guide rod sliding blocks are installed on the linear guide rods, lead screw sliding blocks are installed on the reciprocating lead screws, and the guide rod sliding blocks and the lead screw sliding blocks are connected into a whole through a sliding block fixing frame; the rear side of the pump body is fixedon the front retainer through a pump body fastening block; a piston is arranged in the pump body, wherein a blind hole is formed in the rear end of the piston and connected with one end of a connecting rod; and the other end of the connecting rod is connected with the sliding block fixing frame. According to the quantitative pump special for in-situ filtration of the deep sea microorganisms, long-time work at low flow can be realized; in addition, compared with an impeller mechanism of a traditional centrifugal pump, the requirement for rotating speed of an output shaft of an motor is lower;and finally, compared with a cam mechanism of a traditional plunger pump, the quantitative pump is stabler and more reliable.

The invention discloses a fan component comprising a nozzle and a fan. The fan is used for generating airflow in the nozzle. The nozzle comprises an inner channel and a mouth portion. The mouth portion is communicated with the inner channel and used for spraying the airflow. The fan comprises a frame, a vane wheel pivoted at the center of the frame and a motor driving the vane wheel. The motor is suspended on one side of the frame and comprises a speed increasing mechanism. Through the speed increasing mechanism, the fan component can use the motor with low revolving speed to acquire high-speed rotation of the vane wheel. On the requirement of generated air quantity satisfying revolving speed of the vane wheel, requirements on the revolving speed of the motor are reduced, so that service life of the motor is prolonged and production cost of the motor is reduced. In addition, vibration noise of the motor is reduced through suspension of the motor.

The invention relates to an insulation plate of an electroplating machine, being of a convex structure sloping down gently from the center to two sides. The invention provides an insulation plate of an electroplating machine for small parts, which is easy to discharge an electroplating solution, and as a result, improves the electroplating quality of the small parts and prolongs the service life of a processing vessel.

The invention provides an automobile hybrid power system, and belongs to the technical field of automobiles. The problems that an engine of an existing automobile hybrid power system intervenes in and exits from the system and shakes, fuel economy is poor, reverse gear power is insufficient when the electric quantity of a power battery is insufficient, and a transmission is difficult to arrange due to too long axial distance are solved. The automobile hybrid power system comprises an engine, a generator, a planetary gear train, a power transmission shaft and a driving motor in transmission connection with the power transmission shaft, an output shaft of the engine is in transmission connection with a planet carrier, and a rotating shaft of the generator is in transmission connection with a sun gear. The hybrid power system further comprises a sun gear clutch, a gear ring clutch and a brake capable of braking the gear ring, the gear ring clutch is used for achieving transmission connection or disconnection between the gear ring and the power transmission shaft, and the sun gear clutch is used for achieving transmission connection or disconnection between the sun gear and the power transmission shaft. The automobile hybrid power system has the advantages of being good in NVH performance, good in fuel economy, high in reverse gear power performance and the like.

The invention discloses a multi-gear series-parallel type hybrid power system. The system is composed of an engine, an input shaft, a planetary gear train, a first motor, a second motor, an inverter, a power battery, locking devices, a first gear, a second gear, a third gear, a fourth gear, a fifth gear and clutches. The planetary gear train comprises a front-row sun gear, a front-row planet gear, a front-row gear ring, a planet carrier, a rear-row planet gear and a rear-row gear ring; the locking devices comprise a first locking device and a second locking device; the clutches comprise a first clutch and a second clutch. The hybrid power system is large in number of working modes, wherein the pure electric mode is used more, so that the system is applicable to a plug-in hybrid power vehicle as well; by means of the system, when a vehicle is driven at a high speed, the mechanical path is adopted for transmitting the power instead of using the electric path, the transmission efficiency in the high-speed traveling process of the vehicle is raised, meanwhile, the revolving speed requirement for the second motor can be reduced, and the miniaturization of the second motor is facilitated.

The invention discloses a foaming washing machine, which mainly comprises a casing body on which a power and transmission device, a control device are mounted and within which an outer cylinder (1) is arranged, the outer cylinder (1) comprises an inner drum (2) inside and a bottom water tank (3) below, the characteristics lie in that the bottom water tank (3) is provided with a circulatory pipeline thereon, a water outlet pipe (4) at one side thereof and a water inlet pipe (5) at the other side thereof, a foaming pipe (6) is arranged on the water inlet pipe (5); an air intake pipe (7), a liquid pump (8) and a one-way valve (9) are arranged between the water outlet pipe (4) and the foaming pipe (6). The inventive foaming washing machine removes the dust on clothes by means of impact and blowout of air bubbles generated by the foaming pipe, which can lessen the use amount of water and detergent, is low in requiring the rotating speed of the drum, and has the advantages of saving water, reducing environmental pollution and lessening abrasion on the clothes. Meanwhile, the partial clothes can be dry-cleaned in virtue of regulating water amount.

The invention provides a disinfection laundry detergent and a preparation method thereof, and aims to solve the problems that in the existing laundry detergent production technology, the produced laundry detergent only has a single washing or disinfection and sterilization function, the killing rate of bacteria and fungi is low, and the irritation is strong. The laundry detergent is prepared fromthe following raw materials: an anionic surfactant, potassium cocoate soap, a nonionic surfactant, a polymer of methyl ethylene oxide and ethylene oxide mono (2-propylheptane) ether, a cationic surfactant, an inorganic bactericide, tetrasodium glutamate diacetate, a defoaming agent, essence and water. The product produced by the invention has the advantages of strong disinfection and sterilizationeffects, strong detergency, mildness, safety, no stimulation, low foam, easy cleaning and no residue.

The invention relates to a low rotating speed self-priming extraction equipment, characterized in that: a hollow rotating shaft and a liquid phase diffuser fixed on the hollow rotating shaft are arranged in an extraction tank of the extraction equipment, wherein, the shaft wall of the hollow rotating shaft is provided with a feed inlet, the rotating shaft is connected with a motor, the liquid phase diffuser comprises two or more single channel simple liquid phase diffusers in series, each simple liquid phase diffuser is provided with a feed inlet, a hollow rotating shaft, and a hollow rotary drum which are communicated with each other, but each simple diffuser are not communicated through the hollow rotating shaft, and a channel exit of the last N-1 level simple diffuser is provided with a downward-facing outer cover. The extraction equipment is suitable for a large-phase ratio easy-emulsification system. According to the invention, by concatenating at least two self-priming phase-dispersed stirrers into a whole and uniformly dispersing a light phase in a heavy phase, the operation can be continuously carried out under the condition of distinct two-phase interface, thus the emulsification phenomenon is avoided, the advantages of small equipment investment, easy operation, low rotating speed of the motor, low power consumption, and small shearing force to solution are achieved. The invention is beneficial to keep the activity of biomacromolecules.

The invention provides an electromagnetic ball mill. The electromagnetic ball mill comprises a bracket, a driving part, a cylinder body, a cylindrical grinding container and magnetic grinding bodies.The cylinder body is fixed to the bracket. Two arc-shaped electric conductive strips are arranged on the top of the inner sidewall of the cylinder body. The outer side of the cylinder body is providedwith a power connector communicating with the electric conductive strips. One end of the grinding container is inserted into the cylinder body to be rotatably connected with the cylinder body, and the other end of the grinding container is rotatably connected with the bracket. An electromagnet is mounted on the inner sidewall of the grinding container. The peripheral surface of the grinding container is provided with two conductive contacts corresponding to the electromagnetic conductive strips. One end of each conductive contact abuts against the inner sidewall of the cylinder body, and theother end of each conductive contact is electrically connected with the electromagnet. The grinding bodies are placed in the grinding container. The electromagnetic ball mill reduces the requirementsfor the rotating speed and can raise the grinding bodies to the highest point conveniently and improve the grinding effect.

The invention relates to a permanent magnetic DC pump motor which comprises an enclosure 2, magnetic steel 3, a brush frame plate and an armature stamping 4, and is characterized in that the armature stamping 4 is in a peariformslot structure, the enclosure 2 adopts No. 10 steel tubes with the thickness of 3.5-4mm, the magnetic steel 3 adopts ferrite Y40 or Y35, the thickness of the magnetic steel is designed to be 9.5-10mm, the brush frame plate 1 adopts a thermosetting material FX-501 phenolic aldehyde glassfiber plastic with the withstanding temperature of 170 to 190 DEG C, and the insulating material of the motor adopts H class insulation with the temperature of 170 to 180 DEG C. The motor of the invention solves the problems of calorification, small moment, high rotate speed of the motor, and reaches the use requirements of a hydraulic pump, such as long time (S2 = 8min), large moment of 2.1N.m and low rotate speed of 2200r / min.