46results about How to "Guaranteed output torque" patented technology

The present invention provides a motor torque correction method and device, a motor and a vehicle, and relates to the automobile technology field. It is realized that a permanent magnet synchronous motor still can ensure that the motor outputs torque satisfying demands after attenuation. The main technical scheme of the invention is a motor torque correction method. The method comprises: obtaining the real flux linkage data of a motor; performing correction of d-axis current and q-axis current of the motor according to the real flux linkage data to obtain a d-axis current correction value and a q-axis current correction value; and correcting the output torque of the motor according to the d-axis current correction value and the q-axis current correction value. The motor torque correction method is mainly used for correction of the output torque of the motor to allow the motor to output the torque satisfying demands.

The invention relates to an intelligent wire feeding machine. The machine comprises a frame, a wire welding disc, a wire feeding device and a control mechanism. The machine is characterized in that: the tail part of the frame is provided with a wire welding disc shaft; the wire feeding device fixed by bolts is arranged on a bottom plate below the frame; the side surface of the frame is provided with a supporting plate for fixation; the wire feeding device comprises a servo motor, a harmonic reducer, a panel, a wire feeding wheel, regulating wheels, a thumb wheel, a compression rod, a wheel bracket panel, a connecting rod, bearings, an encoder, a compression spring, a spring core shaft, a shaft sleeve, a sliding body, and a sliding body cover; the control mechanism is that: an embedded computer system is arranged in the intelligent wire feeding machine. According to the present invention, the servo control technology and the harmonic reducer are adopted, such that the operating stability of the welding wire at the low speed is effective controlled; the elastic floating device and the encoder are added, such that the control system is improved, the terminal close loop of the welding wire output movement is achieved, the wire feeding speed is real-timely monitored, and the damage probability of the laser processing workpiece due to the machine problem is reduced to the minimum.

The invention discloses a rotor of a rotating motor. The rotor comprises a rotating shaft and a rotor core, wherein a plurality of pieces of neodymium iron boron magnetic steel are uniformly embedded in the rotor core in tangential directions; a piece of ferrite magnetic steel is embedded between two adjacent pieces of neodymium iron boron magnetic steel in a radial direction; two adjacent pieces of neodymium iron boron magnetic steel are arranged in an N-N opposite manner; two adjacent pieces of ferrite magnetic steel are arranged in an N-S separating manner. The rotor has the benefits that the ferrite magnetic steel and reluctance torque are sufficiently utilized, so that the consumption of the neodymium iron boron magnetic steel can be greatly reduced under the premise that motor output torque is guaranteed. Therefore, the cost of a permanent magnet motor can be reduced.

The invention discloses a novel mechanical arm joint. The novel mechanical arm joint comprises a swinging oil cylinder driving device and a servo motor driving device, wherein two cylinder body bladesupports which are symmetrically distributed are arranged on the inner wall of a cylinder body of the swing oil cylinder driving device, the cylinder body blade supports are used for installing cylinder body blades, two rotor blade supports which are symmetrically distributed are arranged on the side wall of a swing cylinder rotor, and the rotor blade supports are used for installing the swing cylinder rotor blades, the swing cylinder rotor is installed in the cylinder body, and the two cover plates which are packaged on the two sides of the cylinder body are fixedly supported, the cover plates on the two sides of the cylinder body are installed on a cover plate connecting plate; a servo motor driving device is provided with two motor end covers which are fixedly installed on the two sidesof a servo motor body correspondingly, the servo motor body is connected with a motor output shaft, and an output shaft end flange plate is installed at one end, far away from the servo motor body, of the motor output shaft; and one end, far away from the motor output shaft, of the servo motor driving device is installed at the two ends of the swing cylinder rotor through two force arm rods. According to the arm joint, large torque and large output torque can be borne, and meanwhile, a relatively good swinging angle can be achieved.

The invention discloses a round nut tightening device. The round nut tightening device comprises an input mechanism and a tightening mechanism. The tightening mechanism comprises a second planetary gear, a key chuck and a claw chuck; the second planetary gear comprises a second sun wheel, an inner tooth ring and a second planetary gear; the second sun wheel and the inner tooth ring are both engaged with the second planetary gear; the key chuck and a gear shaft of the second planetary gear are fixed relatively; the inner tooth ring and the claw chuck are fixed relatively; the output of the input mechanism is in driving connection with the second sun wheel; the key chuck, the claw chuck and the second sun wheel are all coaxially arranged and can rotate relative to one another. According to the round nut tightening device, the second planetary gear is used for transmission of tightening torque, and the output torque is changed; and smaller torque can be input for obtaining larger output torque, and the effective tightening of a round nut with a large torque requirement on the condition of smaller torque input can be achieved.

The invention relates to a multi-spindle numerical control vertical type special lathe, which comprises a base, wherein a processing mechanism is arranged on the base and comprises two vertical spindle units, the two spindle units are closely arranged along the transverse direction, a vertical column is arranged at the back side of each spindle unit, a vertical tail seat unit and two feeding units are arranged on each vertical column, and the two feeding units are respectively arranged at the two transverse sides of the corresponding tail seat unit; each tail seat unit comprises a first slide device, a tail seat is arranged on each first slide device, and two vertical tail seat sleeve cylinders are arranged at the lower part of each tail seat, are positioned above spindles, and are correspondingly arranged; each feeding unit comprises a second slide device and a transverse movement device, each transverse movement device is arranged on the corresponding second slide device, a knife holder is arranged on each transverse movement device, each first slide device and each second slide device can be moved on the corresponding vertical column along the vertical direction, and each transverse movement device is moved on the corresponding second slide device along the transverse direction. The multi-spindle numerical control vertical type special lathe has the advantages that multiple different types of camshaft parts can be simultaneously processed, and the production efficiency is high; the whole land occupation area of the equipment is small.

The invention provides a driving motor which comprises a shell, a stator and a rotor. The stator and the rotor are arranged in the shell; a sun gear is fixedly sleeved on an output shaft of the rotor, an inner gear ring is fixedly connected into the shell, and both the sun gear and the inner gear ring are meshed with a planet gear mounted on a planet carrier; a through hole is axially formed in the middle of the rotor, and a rotatable output connecting shaft is arranged in the through hole; the planet carrier is fixedly mounted at an output end of the output connecting shaft. Output torque of the output shaft of the rotor can be reduced to the greatest extent while the requirement on high output torque can be met by the output connecting shaft of the driving motor, so that the size of the stator and the size of the rotor of the driving motor can be greatly reduced, the size and the weight of the driving motor can be greatly decreased, the driving motor is convenient to mount and use, and the service range of the driving motor is greatly increased. The invention further provides two series-parallel hybrid power systems. The driving motor and the series-parallel hybrid power systems have advantages that the integral sizes and the integral weights of the series-parallel hybrid power systems are greatly reduced, and the universality of the series-parallel hybrid power systems is improved.

The invention discloses a printer with a built-in hob paper cutting device. The printer includes a machine core assembly and a paper feeding roller fixing frame assembly which are pivoted with a moving blade fixing frame and a fixed blade fixing frame respectively; the moving blade fixing frame and the fixed blade fixing frame are provided with a moving blade and a fixed blade respectively; the machine core assembly is provided with a stepping motor and a cutter gear driven by the stepping motor; the cutter gear is connected with a cutter driving arm which is driven by the cutter gear so as to swing in a reciprocating manner; one end of the cutter driving arm is fixedly connected with the moving blade fixing frame so as to drive the moving blade to move in a reciprocating manner; the fixed blade is provided with a guide arm used for guiding the moving blade; the paper feeding roller fixing frame assembly is provided with a torsional spring used for driving the fixed blade to rotate towards the moving blade; the two cutting edges of the moving blade and the fixed blade are arranged obliquely in a manner that the closer the two cutting edges are to the guide arm, the smaller the interval between the cutting edges is; and the cutting edge of the moving blade is a plane curve. The printer of the invention is simple and compact in structure. The appearance design and miniaturization design of the printer can be benefitted, and the service life of the paper cutting device is long.

The invention relates to the field of motor control, in particular to a method for controlling a frequency converter to start multiple large motors through a PLC. The method for controlling one frequency converter to start a plurality of large motors by using the PLC comprises the following operation steps of: 1, controlling a single motor to start, and then randomly starting the next motor; according to the invention, only one frequency converter is used, and single gradual starting is limited by a PLC program; after the PLC receives the starting instruction, the Y1 acts to start the KM1 andthe Y0 acts to start a frequency converter; when the frequency reaches 50.5 HZ, the auxiliary relay of the frequency converter outputs a passive switch signal to switch on x0, and the PLC stops the output of the y0 and the y1, Y2 starts KM2 after short time delay, the motor is started and operated at power frequency, the next motor can be started, and the like, so that the problems of simple structure, high failure rate, low automation degree, inconvenience in control and high investment cost of conventional starting of a self-coupling, a star-delta and a soft starter which are used at presentare solved.

The invention provides a drive motor. The drive motor comprises a shell body, a stator and a rotor. The stator and the rotor are arranged in the shell body. An output shaft of the rotor is fixedly connected with a sun gear in a sleeved mode. The shell body is fixedly connected with a planet carrier provided with a planet gear. The planet gear is respectively connected with the toothed end of the sun gear and the toothed end of an inner ring gear. A through hole is formed in the middle of the rotor along the axial direction. An output connecting shaft capable of rotating is arranged in the through hole. The non-toothed end of the inner ring gear is fixedly connected with the output end of the output connecting shaft. According to the drive motor, the output connecting shaft is made to have large output torque and reduce, to the greatest extent, the output torque of the output shaft of the rotor at the same time, so that the stator and the rotor of the drive motor are made to be greatly reduced in size, the size and the weight of the drive motor itself are made to be greatly reduced, the drive motor is made to be installed and utilized more conveniently, and the utilization range of the drive motor is expanded. The invention further provides two kinds of series-parallel type hybrid power systems which are made to be greatly reduced in overall size and weight and are improved in universality.

The invention provides a driving motor. The driving motor comprises a casing and a stator and a rotor which are arranged inside the casing; a rotor spindle which is used for fixing a sun gear in a sleeve mode is formed in the middle of the rotor along the axial direction; an internal ring gear is installed inside the casing through a first brake; the sun gear and the internal ring gear are meshed with a planetary gear which is installed on a planetary frame; the middle of the planetary frame is fixedly connected with an output connecting shaft which is arranged along the axial direction; a second brake is arranged between the planetary frame and the sun gear. According to the driving motor, output torque of an output shaft of the rotor is reduced under the premise that the series-parallel hybrid power system normally operates and meanwhile the output connecting shaft satisfies larger output torque, so that the size of the driving motor and the stator and the rotor inside the driving motor is greatly reduced and meanwhile the driving motor is convenient to install and use. The invention also provides two series-parallel hybrid power systems which enable the integral size and weight of the series-parallel hybrid power system to be greatly reduced and the universality to be improved.

The invention aims at the multi-objective parameter optimization problem of coordinated optimization of controlled characteristic parameters and agronomic requirement parameters of a double-crank five-connecting rod type planting mechanism of an electric drive transplanter in dry land, a closed vector equation is used to describe the motion characteristics of the mechanism, actual agronomic parameter requirements and other requirements during operation of a transplanter are transformed into constraint conditions, after weight distribution is performed through a matrix method, the controlled characteristic is obtained through combination and is used as an objective function, a genetic algorithm is used to optimize and determine the structural parameters of the mechanism, so that the controlled double-crank five-connecting rod planting mechanism is designed.

The invention relates to a front output overspeed ratio speed reduction large-torque motor. The motor comprises a motor shell, a motor stator, a motor rotor, a motor shaft, a driving wheel and a rearend cover; the device further comprises a suspension torque flange, a power output flange, a power output shaft, a driven wheel and a multi-shaft linkage device. According to the technical scheme, a flange ring is arranged in the middle of a motor cavity; a multi-shaft helical gear transmission device and the motor form an all-in-one machine; the invention aims to solve the defects in the prior art, and provides an energy-saving and environment-friendly product which can effectively reduce a mechanical friction coefficient, increase the torque by several times to dozens of times on the basis of a standard motor, achieve the ultrahigh energy efficiency value in efficiency, and is high in space saving value, novel in appearance, high in protection grade and convenient to install.