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50results about How to "Realize synchronous drive" patented technology

Four-jaw chuck clamp used for high-precision four-jaw chuck

ActiveCN110756837ARealize synchronous driveGuaranteed centering action for synchronized clampingChucksNumerical controlMachine tool
The invention relates to the technical field of machine tool clamps, and discloses a four-jaw chuck clamp used for a high-precision four-jaw chuck. A displacement detecting mechanism used for detecting moving displacement of various clamping jaws is arranged in a four-jaw chuck. A control and compensation mechanism is arranged and can carry out fine adjustment and compensation on the moving condition of the clamping jaws, and therefore after the displacement detecting mechanism detects that the displacement difference value of displacement of certain or multiple clamping jaws and the other clamping jaws reaches a set threshold value, the control and compensation mechanism can carry out fine adjustment and slowing down in the moving situation of the clamping jaws large in displacement so asto keep synchronous centering and clamping with the other clamping jaws. Thus, even screws are worn to different degrees, synchronous drive can be achieved precisely, the centering function of synchronous clamping is guaranteed, operation can be achieved simply by controlling action of nuts and T-shaped sliding blocks, and operation is simple and convenient.
Owner:泉州滨利服饰有限公司

Lifting linkage type valve device and control method

The invention discloses a lifting linkage type valve device. The lifting linkage type valve device comprises a support, a lifting mechanism and a translational driving type protective mechanism, wherein a vertical beam is arranged at the middle part of the support, and the lifting mechanism and the translational driving type protective mechanism are correspondingly arranged on two sides of the vertical beam of the support; the translational driving type protective mechanism comprises a linkage pin, a sector gear and a rack; the linkage pin is fixedly arranged on one side of a supporting plate and extends horizontally; the sector gear is fixedly arranged on the support in a rotatable manner, and a guide groove matched with the linkage pin is formed in the sector gear; and the rack is connected with the sector gear in an engaged manner and is fixedly connected with an insulated valve. An executing mechanism is arranged on the liftable supporting plate, so that the height space is sufficiently utilized, and an actuating mechanism is simplified; and moreover, synchronous driving of a translational part to be driven is realized by using linkage of the lifting mechanism and the translational driving mechanism, so that the device is convenient in integral design, and the using safety is particularly improved.
Owner:天津市先智电气设备有限公司

Power takeoff device for oppositely-arranged double hydraulic pumps of diesel engine

The invention discloses a power takeoff device for oppositely-arranged double hydraulic pumps of a diesel engine. The power takeoff device comprises a hydraulic pump gear shaft, a hydraulic pump drive gear and a spline housing, wherein the hydraulic pump gear shaft is fixed to a gear chamber of the diesel engine, the hydraulic pump drive gear is provided with an internal spline and arranged on the hydraulic pump gear shaft in a sleeved mode after press fitting of a sliding bearing, the spline housing is provided with an internal spline and an external spline, and the external spline of the spline housing is meshed with the internal spline of the hydraulic pump drive gear. The hydraulic pumps can be oppositely connected to the two ends of the spline housing through a hydraulic pump installation hole in one end of the hydraulic pump gear shaft and a hydraulic pump installation hole in a gear chamber cover and meshed with the internal spline of the spline housing. The power takeoff device can achieve synchronous drive of the two hydraulic pumps, is simple in structure and convenient to install, and saves the space of the gear chamber of the diesel engine. In the use process, if one hydraulic pump goes wrong or is damaged, the hydraulic pump can be replaced independently, and therefore the maintenance cost is lowered.
Owner:GUANGXI YUCHAI MASCH CO LTD

Reinforcing structure after pile foundation excavation and reinforcing method thereof

The invention relates to a reinforcing structure after pile foundation excavation. The reinforcing structure comprises a frame body, the frame body comprises four connecting rods, each connecting rod comprises a fixed rod and movable rods which are connected to the two ends of each fixed rod in an inserted and sliding mode, each fixed rod is provided with an adjusting device used for driving the movable rods on the two sides to be located in each fixed rod and move at the same time, a mounting rod is fixedly arranged in the middle of each fixed rod, the length direction of each mounting rod is perpendicular to the length direction of the corresponding fixed rod, a movable plate is slidably arranged on each mounting rod in the length direction of the corresponding mounting rod, a supporting rod is hinged to each movable plate, a supporting plate used for abutting against the outer wall of a pile foundation is hinged to the end, away from each movable plate, of each supporting rod, and a driving device used for driving each movable plate to move in the length direction of each mounting rod is arranged on each mounting rod. The reinforcing structure has the advantage that the supporting effect on pile foundations with different diameters is improved.
Owner:成都城投建筑工程有限公司

Towel embroidery machine head with single cam and three connecting rods

The invention discloses a towel embroidery machine head with a single cam and three connecting rods. The head comprises a head shell, wherein a towel needle up and down driving device, a presser foot up and down driving device and a needle mouth up and down driving device are respectively installed in the head shell and are respectively provided with a towel needle connecting rod, a presser foot connecting rod and a needle mouth connecting rod; the towel needle connecting rod, the presser foot connecting rod and the needle mouth connecting rod are connected with bearings; the bearings are connected with a same cam in a matching manner; a towel needle cam path ring, a presser foot cam path ring and a needle mouth cam path ring are axially arranged on the cam. The towel embroidery machine head has the beneficial effects that the bearings connected to the towel needle connecting rod, the presser foot connecting rod and the needle mouth connecting rod are simultaneously matched with the same cam and the towel needle cam path ring, the presser foot cam path ring and the needle mouth cam path ring are axially arranged on the cam, thus achieving synchronous drive of the towel needle connecting rod, the presser foot connecting rod and the needle mouth connecting rod; the cam has the technical effects of three traditional cams, thus greatly reducing the axial dimension of the towel embroidery machine head.
Owner:ZHEJIANG YUELONG SEWING EQUIP

Crawler-type magnetic adsorption detection robot walking mechanism

The invention discloses a crawler-type magnetic adsorption detection robot walking mechanism which can walk on an overhead rail in an underground comprehensive pipe gallery and comprises a shell and crawler belts arranged on the two sides of the shell. The crawler belts on the same sides are connected through crawler wheels, the crawler wheels arranged on the two transverse sides are fixedly connected with the shell through power output shafts, the crawler belts are in a magnetic attraction walking mode, and the whole walking mechanism is tightly attracted to a pipe gallery overhead rail through a plurality of permanent magnets fixed to the crawler belts on the two sides. A motor is arranged in the shell and drives the walking mechanism to walk. A base is arranged at the top of the shell,and a sensor and a detection mechanism are borne on the base, so that when the robot walking mechanism walks on an overhead rail of the underground comprehensive pipe gallery, the robot walking mechanism can achieve detection operation on the underground comprehensive pipe gallery by carrying the corresponding detection device. The robot walking mechanism is simple in structure, and problems thata traditional detection mode is high in labor intensity, and detection risks exist are solved.
Owner:CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP

Mold opening and closing device of bottle blowing machine

The invention discloses a mold opening and closing device of a bottle blowing machine and belongs to the technical field of plastic processing machinery. According to the mold opening and closing device, by arranging a supporting rod transmitting power, a link mechanism and a variable-distance guide groove, the power from a power source is resolved into the force in the perpendicular direction and the force in the horizontal direction, and therefore the power is synchronously supplied to a front mold plate, a back mold plate and a bottom mold plate; and in this way, synchronous drive of all the mold plates is achieved, and the time of the processes of opening and closing the mold is shortened. Meanwhile, the power is saved, and the production efficiency is improved.
Owner:台州迈格机械模具有限公司

Ultrathin clamping type carrier

The invention relates to an ultrathin clamping type carrier. The ultrathin clamping type carrier comprises a rack, clamping mechanisms and a walking mechanism, wherein the clamping mechanisms and thewalking mechanism are arranged on the rack. Each clamping mechanism comprises two clamping arms symmetrically hinged to the same side of the rack, wherein a worm gear is fixedly arranged at the root of the clamping arm, two worms matched with the worm gears are arranged on the rack through a support, the rotating directions of worm teeth on the two worms are opposite, the two worms are coaxially arranged, the opposite ends of the two worms are connected through a coupler, the free end of one worm is connected with a first servo motor through a first speed reducer, and the two clamping mechanisms are arranged on the two sides of the rack and used for clamping a left wheel and a right wheel of an automobile. The walking mechanism comprises two front wheel sets arranged on the two sides of the front end of the rack and two rear wheel sets arranged on the two sides of the rear end of the rack. A battery and a charger are arranged on the rack, the battery is electrically connected with an inverter, and the first servo motor and a second servo motor are electrically connected with the inverter.
Owner:河北高西宅智能车库工程有限公司

DC motor parallel control system and current following control method

The invention discloses a DC motor parallel control system and a current following control method, and the method comprises the steps: obtaining a reference initial current through five PI regulatorsaccording to a difference between a given reference rotating speed and an actual rotating speed; calculating a required reference current value from the reference initial current through a reference current reconstruction calculation module; obtaining a calculated current value from the current value the output end of a six-phase voltage source type inverter passes through a current reconstructioncalculation module; providing the difference value between the calculated current value and the reference current value for a hysteresis comparator to generate square wave signals with equal amplitude and unequal width; converting the square wave signals, by a PWM module, into a switching signal for driving an IGBT; transmitting a PWM signal to the six-phase voltage source type inverter module, controlling the five direct current motors to work normally by the six-phase voltage source type inverter module, and realizing four-quadrant operation of the motors. The invention provides a novel motor control method by adopting a reference current reconstruction technology, a current reconstruction technology and a hysteresis comparison technology.
Owner:SUZHOU BONRAY MEASURE & CONTROL EQUIP

Automatic lifting type flood control structure

The invention relates to an automatic lifting type flood control structure which comprises a flood control plate, the flood control plate comprises a fixed plate and a lifting plate, the fixed plate and the lifting plate are movably arranged, the fixed plate is fixed to a foundation, the lifting plate is fixedly connected with a guide rod, the guide rod is movably inserted into a guide hole, and the guide hole is fixedly connected with the lifting plate. The guide hole is formed in the fixing plate; the flood control plate is arranged on the dam, the height of the flood control plate can be increased, and the height of the flood control plate can be adaptively changed according to the rise of the water level, so that the efficient and timely flood control effect can be achieved, and potential safety hazards caused when manual flood control is needed when the height of the dam is operated at the water level can be avoided; in addition, the flood prevention plate is simple and reasonable in structural design and has higher practical value in actual application.
Owner:陈文元

Water gate for intercepting garbage in water conservancy project

The invention relates to a water gate for intercepting garbage in a water conservancy project. The water gate comprises a water gate body and a conveying roller bed, wherein the conveying roller bed is inserted into wing walls on the two sides of a river channel in a rotating mode, two sets of shaft bodies are rotationally connected to the conveying roller bed, two sets of net chains are rotationally connected to the two sets of shaft bodies in a sleeving mode, a plurality of sets of loading hoppers are fixed on the two sets of net chains, the inclined lower end of the conveying roller bed faces the upstream of the water gate body, and a foam plate is fixed at the inclined lower end of the conveying roller bed; a conveying belt stretching across the river channel is installed on the river channel at the upstream position of the water gate body, a power device for driving the conveying roller bed and the conveying belt to rotate is installed on the ground, and the net chains continuously rotate anticlockwise, so that the loading hoppers grab and convey garbage floating on the water surface; and the conveying belt is located at the inclined upper end of the conveying roller bed, and the garbage is scattered on the conveying belt and is continuously conveyed to the ground on one side of the river channel. According to the water gate, the cleaning operation of the garbage in the river channel is realized, the probability that the garbage is blocked at the position of the water gate is reduced, and the normal drainage efficiency of the position of the water gate is guaranteed.
Owner:广东浩禹建设有限公司

Display device and display panel thereof

The invention provides a display device and a display panel thereof. The display panel comprises a plurality of first sub-pixels, first pixel driving circuits for driving the first sub-pixels, a plurality of second sub-pixels and second pixel driving circuits for driving the second sub-pixels, wherein the first pixel driving circuits corresponding to the first sub-pixels and the second pixel driving circuits corresponding to the second sub-pixels, located in the same row, share the same scanning signal through a first phase inverter. The shared scanning signal can realize synchronous driving of the first sub-pixels and the second sub-pixels, so that the display effect of a full screen is improved. Synchronous driving of the first sub-pixels and the second sub-pixels can be realized by using the same GIP circuit, so that the structure is simple and the cost is low.
Owner:KUNSHAN GO VISIONOX OPTO ELECTRONICS CO LTD

Temperature-controlled color-changeable switchable glass

The invention discloses temperature-controlled color-changeable switchable glass. According to the key points, the glass comprises a base glass plate, a switchable glass plate, a mounting frame plate,supporting plates, clamping plates and clamping grooves, wherein the mounting frame plate is arranged at an edge of a mounting surface of the base glass plate, the supporting plates are oppositely arranged on the opposite inner frame walls of the mounting frame plate, a connecting frame is arranged on the peripheral end wall of the switchable glass plate, the distance between the side wall, awayfrom the base glass plate, of the mounting frame plate and the side walls, away from the base glass plate, of the supporting plates is equal to the thickness of the switchable glass plate and the thickness of the connecting frame, the clamping grooves are arranged on the four outer side walls of the connecting frame, push-pull grooves are formed in the sides, where the supporting plates are away from the base glass plate, of the inner side wall of the mounting frame plate, the clamping plates are slidably arranged in the push-pull grooves in the direction perpendicular to clamping groove openings through a push-pull assembly, and the clamping plates extending out of the push-pull grooves are clamped to the clamping grooves. According to the glass, the detachable connection between the switchable glass plate and the whole glass is realized, and the replacement of the switchable glass plate is facilitated.
Owner:南京智华博智能科技有限公司

Intelligent fire emergency rescue auxiliary decision-making system

The invention provides an intelligent fire emergency rescue auxiliary decision-making system. The intelligent fire emergency rescue auxiliary decision-making system comprises a robot and a display screen, wherein the robot structurally comprises a support, a motor, short drive handles, humerus connecting rods, ulna connecting rods, thighbone connecting rods, tibia triangular supports, fibula connecting rods, a right foot, a left foot, a circuit board, a camera and a communication antenna; the motor provides power, and connecting rod mechanisms constitute a left movement mechanism and a right movement mechanism; the left movement mechanism and the right movement mechanism of the robot are equivalent to two legs of the robot, the thighbone connecting rods are equivalent to thighs, and the tibia triangular supports are equivalent to shanks; driving force of the short drive handles is transferred to the thighbone connecting rods through the humerus connecting rods, equivalently driving the thighs to swing forward and backward; the tail ends of the ulna connecting rods are connected with the rear ends of the tibia triangular supports, equivalently driving the shanks to backwards lift and fall; the bottom ends of the fibula connecting rods are connected with the tail end of the right foot / left foot, equivalently controlling the tilting direction of the right foot / left foot by tendo calcanei; and the camera transmits collected fire interior image information to the outside display screen through the communication antenna.
Owner:XIAMEN KINGTOP INFORMATION TECH

Dual-motor synchronous driving device

The invention relates to a dual-motor synchronous driving device, which belongs to the technical field of mechanical transmission, in particular to the technical field of power synthesis driving, and comprises a first gear, a second gear, a third gear, a fourth gear, a transmission shaft, an elastic element, a first motor, a second motor and a transmission box body. The two motors are connected with two input gears, the input gears and a driving gear are in meshing transmission, the driving gear and an output shaft are connected through the elastic element, input rotating speed synchronization difference caused by motor rotating speed fluctuation in the transmission process is compensated by the elastic element, gear meshing motion interference is avoided, and dual-power synchronous driving and synthetic output are achieved. Meanwhile, dual-motor redundant driving is realized based on the dual-motor synchronous driving device.
Owner:河南坐骑科技有限公司

Processing technology of electrolytic aluminum

The invention relates to an electrolytic aluminum processing technology which comprises the following steps: mixing electrolytes except aluminum oxide, dissolving the aluminum oxide in cryolite serving as a solvent for electrolytic reaction of the aluminum oxide, heating the electrolyte mixture except the aluminum oxide until the electrolyte mixture is in a molten state, and then adding a cryolite solution containing the aluminum oxide to obtain a melt; an electrode of an electrolytic bath is powered on, the melt obtained in the step A is placed in the electrolytic bath and then electrolyzed at the temperature of 800-820 DEG C, the current density is 1A / cm < 2 >, and molten aluminum obtained after electrolysis is obtained; an existing filtering device structure is improved, in the using process of the improved filtering device structure, the anti-blocking effect of the filtering net can be achieved, in this way, in the using process of the improved filtering device structure, filtering net holes cannot be blocked for a short time, and therefore the service life of the filtering net can be longer; therefore, in the actual use process, the production and maintenance cost can be reduced.
Owner:季秀女

Display device and display panel thereof

The present invention provides a display device and a display panel thereof, the display panel: a plurality of first sub-pixels and a first pixel driving circuit for driving each first sub-pixel, and a plurality of second sub-pixels and a driving circuit for driving each second sub-pixel The second pixel driving circuit corresponding to the first sub-pixel located in the same row and the second pixel driving circuit corresponding to the second sub-pixel share the same scanning signal through the first inverter. The above common scanning signal can realize the synchronous driving of the first sub-pixel and the second sub-pixel, and improve the display effect of the full screen. The synchronous driving of the first sub-pixel and the second sub-pixel can use the same GIP circuit, which has a simple structure and low cost.
Owner:KUNSHAN GO VISIONOX OPTO ELECTRONICS CO LTD

Rising and descending coordinated type dual-power supply device and control method thereof

The invention discloses a rising and descending coordinated type dual-power supply device. The dual-power supply device comprises a support, a lifting mechanism and a translation driving mechanism, wherein a vertical beam is arranged at a middle part of the support, the lifting mechanism and the translation driving mechanism are correspondingly arranged at two sides of the vertical beam of the support, a handcart is arranged on support plate, an execution mechanism is loaded on the support plate, limitation parts are arranged at two sides or end parts of the support plate, rear side surfaces of the limitation parts are inclined surfaces with upper side edges protruding forwards, abutting parts are formed on the handcart and are matched with the limitation parts, front side surfaces of the abutting parts are slope surfaces corresponding to the inclined surfaces, and the limitation parts are directly connected with a grounding point of the lifting mechanism through wires. The execution mechanism is arranged on the support plate which can be raised and descended, the height space is fully utilized, and the action mechanism is simplified; and moreover, by linkage of the lifting mechanism and the translation driving mechanism, synchronous driving of a translation part to be driven is achieved, the integrated design is facilitated, and particularly, the application safety is improved.
Owner:天津市先智电气设备有限公司

Garment processing device

InactiveCN113789631AIncreased roll leveling requirementsQuick assembly functionPattern makingProcess engineeringWorkbench
The invention provides a garment processing device. The processing device comprises a workbench, and further comprises an embossing mechanism arranged on the workbench and a rolling adjusting mechanism used for adjusting the height of a rolling gap away from the upper surface of the workbench so as to roll and flatten garment cloth guided to the embossing mechanism. By arranging the rolling adjusting mechanism, the rolling gap can be adaptively adjusted according to the garment cloth with different thicknesses, the rolling and flattening requirements of different garment cloth are improved, the applicability is improved, the cost for developing multiple sets of equipment is saved, and relatively, the occupied space of the multiple sets of equipment is reduced.
Owner:亳州新诚达时装有限公司

A DC motor parallel control system and current following control method

The invention discloses a DC motor parallel control system and a current following control method. The difference between a given reference speed and an actual speed is passed through five PI regulators to obtain a reference initial current; the reference initial current is reconstructed through a reference current calculation module Obtain the required reference current value; pass the current value at the output terminal of the six-phase voltage source inverter through the current reconstruction calculation module to obtain the calculated current value; give the difference between the calculated current value and the reference current value to the hysteresis comparator In the process, a square wave signal with equal amplitude and different width is generated; the square wave signal is converted into a switching signal for driving the IGBT tube through the PWM module; the PWM signal is transmitted to the six-phase voltage source inverter module, and the six-phase voltage source type The inverter module controls the normal operation of the five DC motors to realize the four-quadrant operation of the motors. The invention provides a novel motor control method by adopting reference current reconstruction, current reconstruction and hysteresis comparison techniques.
Owner:SUZHOU BONRAY MEASURE & CONTROL EQUIP

Pipeline external leakage detection robot walking mechanism

The invention discloses a pipeline external leakage detection robot walking mechanism which is suitable for pipeline detection of narrow underground spaces such as underground comprehensive pipe galleries. The pipeline external leakage detection robot walking mechanism is characterized by comprising a first shell (3) and a second shell (8), wherein the first shell (3) and the second shell (8) arefixedly connected through a plurality of hinge structures (4) and are symmetrical along the hinge structures (4), and magnetic wheels (1) are further symmetrically arranged on the two transverse sidesof the first shell (3) and the second shell (8); and a plurality of reserved bases (16) for bearing detection mechanisms or sensor devices are arranged at the top of the first shell (3) and the top of the second shell (8) correspondingly, and motors (15) are arranged in the first shell (3) and the second shell (8) correspondingly. The pipeline external leakage detection robot walking mechanism isdriven to be attracted to the exterior of a metal pipeline of the underground comprehensive pipe galleries and walk, and then pipeline external leakage is intelligently detected.
Owner:CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP

Double-switch magnetoresistive motor system based on synchronous drive

The invention discloses a double-switch magnetoresistive motor system based on synchronous drive. The system comprises a power convertor, a direct-current power supply, a position detector, a controller, a main switch magnetoresistive motor and a sub switch magnetoresistive motor, wherein the position detector is used for detecting and acquiring position state information of a rotor of the main switch magnetoresistive motor; the controller is used for constructing and generating a group of driving signals according to the position state information so as to control the power convertor; and the power convertor is used for controlling the connection and the disconnection of each stator winding of the two switch magnetoresistive motors according to the driving signals. The synchronous drive of the two motors can be realized through only one set of power convertor, the main and sub motors synchronously run naturally, and net balance is not caused between the two motors. The power convertor is of the simplest structure, and only one switch tube and only one freewheel diode are required for each phase. When the main motor is in a power generation state and the sub motor is in an electric state, the sub motor can be directly driven without additional intermediate energy decoupling device and power convertor.
Owner:ZHEJIANG UNIV

Opposed double hydraulic pump power take-off device for diesel engine

The invention discloses a power takeoff device for oppositely-arranged double hydraulic pumps of a diesel engine. The power takeoff device comprises a hydraulic pump gear shaft, a hydraulic pump drive gear and a spline housing, wherein the hydraulic pump gear shaft is fixed to a gear chamber of the diesel engine, the hydraulic pump drive gear is provided with an internal spline and arranged on the hydraulic pump gear shaft in a sleeved mode after press fitting of a sliding bearing, the spline housing is provided with an internal spline and an external spline, and the external spline of the spline housing is meshed with the internal spline of the hydraulic pump drive gear. The hydraulic pumps can be oppositely connected to the two ends of the spline housing through a hydraulic pump installation hole in one end of the hydraulic pump gear shaft and a hydraulic pump installation hole in a gear chamber cover and meshed with the internal spline of the spline housing. The power takeoff device can achieve synchronous drive of the two hydraulic pumps, is simple in structure and convenient to install, and saves the space of the gear chamber of the diesel engine. In the use process, if one hydraulic pump goes wrong or is damaged, the hydraulic pump can be replaced independently, and therefore the maintenance cost is lowered.
Owner:GUANGXI YUCHAI MASCH CO LTD

Powder metallurgy gear rolling densification device

The invention belongs to the technical field of gear machining, and discloses a powder metallurgy gear rolling densification device. The powder metallurgy gear rolling densification device comprises a base, a first vertical plate, a second vertical plate, a first rotating shaft, a second rotating shaft and a third rotating shaft; the first vertical plate and the second vertical plate are arranged on the top of the base in parallel in the X-axis direction; the first rotating shaft, the second rotating shaft and the third rotating shaft are rotationally arranged between the first vertical plate and the second vertical plate; the first vertical plate is fixedly connected with the base, and the second vertical plate is slidably connected with the base in the Y-axis direction; and rolling dies are fixed to the first rotating shaft and the third rotating shaft, a gear workpiece is fixed to the second rotating shaft, and the two rolling dies clamp the gear workpiece and roll the gear workpiece in the rotating process, so that a compact layer is formed on the surface of the gear workpiece. In conclusion, densification machining of the gear workpiece is achieved in a symmetrical rolling manner, the principle is simple, and operation is convenient. In addition, the movable second vertical plate is further arranged in the whole device, so that feeding and discharging operation of the gear workpiece is more convenient.
Owner:吉凯恩(丹阳)工业有限公司
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