3409 results about "Servomotor" patented technology

A sheet conveying device having multiple directional outputs with multiple registration options having no fixed registration wall for sequencing single sheets or two approximately identical sheets arriving in a two-up configuration, includes a first, second, third, and fourth pairs of rolls. The first pair of rolls and the second pair of rolls rotate about a first shaft, which is rotated by a first servomotor. The third pair of rolls rotate about a second shaft, which is rotated by a second servomotor, wherein the shaft is oriented at an angle approximately 90° relative to the first shaft. The fourth pair of rolls rotate about a third shaft oriented at an angle approximately 90° relative to the first shaft and approximately parallel to the second shaft, and a third servomotor operably connected to the third shaft rotates the third shaft.

A servomotor controller provides nut runner and other functions in a set of stackable modules. Extended-function modules can be added into and removed from the stack as needed. Destacking of closely spaced, wall-mounted controllers can be performed without demounting. Module assemblies are dripproof. Multiple sizes of nutrunner driver electronics and multiple keyboard and display options can be selected. A reprogrammable central processor can identify newly installed or removed features within a controller and reconfigure itself F accordingly. Stackable modules include Ethernet(®, multiple-bit I / O, and proprietary interfaces for many industries. The other modules communicate with the processor module via a backplaneless bus architecture. The central processor supports master / satellite group operation, whereby one controller unit can command multiple others, and whereby a higher-level system can command multiple controllers or multiple master / satellite controller groups.

A two-wheel vehicle having a roll axis rotation flexibility in which a servo motor is mounted to each of two wheels operating independently of each other fails to perform stable straight-forward traveling on a laterally inclined road because a neutral position by a spring force of a handle or a step varies with respect to a vertical axis as a vehicle body tilts in a roll axis direction due to a road slope. Further, in such a device, the handle or the step can tilt against intention due to a left and right unbalanced load of a passenger onto the step when getting on or off the vehicle. There is thus provided a control device that enables stable straight-forward traveling while maintaining a standing posture of a person vertically on a laterally inclined road through a motor control of the position of a handle or a step. There is also provided a control device that enables a rotation while a person maintains a vertical posture when a performing rotation operation on an inclined road. There is also provided a vehicle that prevents the occurrence of an unintended inclination of a handle and a step during loading or unloading of a passenger.

A portable, hands-free and user friendly breast pump for facilitating breast-feeding, incorporates a dome-shaped housing having a servomotor mechanism; a hat-shaped flange having a chamber portion, a brim portion and an outlet, the chamber portion being formed so as to be placed over a nipple on a breast so as to define a chamber between the flange and the breast, and the brim portion being formed to surround the nipple and thereby form a suction seal therebetween; and a one-way venting element formed to operatively communicate with the chamber so as to vent pumped milk from the chamber via the outlet. The housing, the flange and the venting element are connected into an integral device held against the breast and underneath clothing so as to keep the integral device hidden. Breast milk is collected via a plastic collection bag that connects directly with the pump underneath clothing such that the milk is isolated from any contaminants in the air and may be easily stored immediately after being collected.

A servo controlled system is disclosed for providing simulated feel equivalent to that of traditional mechanical hand controllers using servomotors. Position and force sensor signals are processed and used in a feedback loop that controls the motor mechanically connected to the stick. The overall feedback loop is comprised of a low-level motor feedback loop, and high-level force feel loop. The two loops have associated performance parameters that can be specified independently. The high-level feel force loop is comprised of a static and dynamic performance components. Static and dynamic performance components can be specified independently. The system allows variable and / or additional force cues to be specified externally to the system and felt by the operator. The system also allows external signal to backdrive die stick to follow a specified motion. The control framework permits the electronic coupling of the motion and applied forces of pilot and co-pilots in a dual arrangement while retaining the above-mentioned features. It also allows asymmetric force feel gradients to be implemented for each stick, or for a stick relative to a second one. A zero breakout or detent can be provided at the stick null displacement. For cross-coupled sticks, the detent can be shared as in a mechanically cross-coupled system, implemented independently on each slick, or any combination of these two. The control framework also provides the simulation of mechanical compliance in the cross-coupling of the two sticks in case of a jam or of force fight between the pilots, and automatic de-coupling of the sticks.

First continuous web as a component of disposable wearing article to be continuously manufactured is fed in a machine direction and first continuous elastic members are fed via guide means adapted to oscillate the elastic members in a cross direction crossing the machine direction and attached thereto. Each of the guide means comprises a first servomotor having a rotary shaft adapted to repeat reversal of its rotational direction, a first arm connected directly with the rotary shaft and extending in a direction crossing the rotary shaft so that the first arm swings around the rotary shaft as the rotary shaft rotates and a first feed member adapted to direct the first continuous elastic members toward guide means formed on the first arm.

An odor evacuation and mitigation system for a bathroom space including a central evacuation fan system, an odor evacuation system for a toilet having a toilet bowl, an automatic flushing system, and a steam and moisture ventilation system. The fan system includes an enclosure having a motor and fan therein and connected to an exhaust hose for expelling odors. The odor evacuation system for a toilet includes a flush valve in communication with a pipe, connected to an external suction device for removal of odors, through an overflow pipe and an evacuation pipe. The automatic flushing system includes a sensor connected to a servomotor for rotation of an actuation lever connected to a flush valve. The steam ventilation system includes a manifold body disposed over a shower enclosure and having a grille through which air flows into the manifold body and outward through an externally extending hose.

A method of driving screws may include steps of providing a robotically controlled screw driver, a servo motor assembly for moving the screw driver, at least one controller for controlling the screw driver and the servo motor assembly, and a machine vision assembly coupled to the controller. The screw may be coupled to the screw driver, and the screw may be aligned with a threaded hole using the machine vision assembly and the controller to control the servo motor assembly, such that the screw is aligned with a center of the threaded hole. The aligned screw may then be driven into the threaded hole.

The structure of the system includes three parts: the control part, the detection part and the drive part. The control part consists of three parts: the main controller i.e. the operation controller,the distance change control and the speed change controller. The detection part includes the wind wheel rotor, the stator of double fed generator, the variable frequency power supply of speed drop excitation and the invention power source of pulse-width modulation etc. assembled sensors. The drive part is composed of the servomotors with different functions. The sensed signals are output from thedetection part. The control signals output from the interlinkage drive module controls harmonious operation. The invention provides the features of simple structure, stable and reliable running and flexible control.

The invention belongs to the technical field of robots, and relates to a crawler-type pipeline robot with active adaptation and self-adaptation functions. A series combination mechanism, which is composed of a screw mechanism, a rocker slider mechanism and a parallelogram mechanism and driven by a stepper motor, is utilized to actively adapt to different pipeline diameters and keep a certain pressure between the crawler and pipeline inner wall. A set of butterfly springs arranged between the screw nut and slider are stressed to generate deformation to automatically adapt to the working conditions of pipeline joints, uneven-surface partial obstacles and the like in the pipeline. Three servomotors drive three sets of synchronous belt wheels to rotate through the transmission of a bevel gear and a cylindrical gear, thereby driving the three bifacial synchronous notched belts used as pipeline robot crawlers to move, and implementing the running function of the pipeline robot. The crawler-type pipeline robot has the simple structure, high operation and running safety, high environmental adaptability and wide application range, is convenient to use, and can work in pipelines with different diameters.

A hoisting device can be small-sized and energy can be saved. A hoisting device 10 according to the present invention has a hoist 30 and a control unit 32. The hoist 30 rotates a drum 12 having a wire 14 wound thereon by an oil pressure motor 42 rotatable in normal and reverse directions. To the oil pressure motor 42, operating oil is supplied from an oil pressure pump 44. The oil pressure pump 44 is a two-way discharge fixed capacity type, and rotated by a servomotor 46. An acceleration / displacement transducer 34 in the control unit 32 finds a moving direction and a moving speed of a wire hanging point in the vertical direction from an output signal of an acceleration sensor 24. The control unit 32 outputs a drive control signal of the servomotor 46 according to a paying-out speed or a rolling-up speed of the wire 14 offsetting the vertical motion of the wire hanging point caused by the heaving of a hull based on a speed instruction Vi of the paying-out or rolling-up speed of the wire, a detected signal of the acceleration sensor 24 and a detected signal of a wire speed sensor 26.

The invention discloses a compact quick-change mechanism of a robot for minimally invasive surgery. The compact quick-change mechanism is composed a quick-change box and a quick-change base, and mainly comprises four groups of transmission mechanisms, a limiting and locking mechanism, a driving system and the like, wherein the connecting part of the quick-change box is connected with the tail end of an instrument with a wrist function through a rotating axis, and the quick-change box can quickly slide along a concave chute of the quick-change base, thereby realizing replacement of surgical instruments; the quick-change box sliding into the quick-change base is limited and fixed by the limiting and locking mechanism installed at the tail end of the quick-change base; the four groups of transmission mechanisms are in similar structures, and finally realize four degrees of freedom of the tail end of the instrument in a wire transmission mode respectively by a servomotor; a transmission steel wire can be fixed and tensioned by a wire fixing wheel assembly in each transmission mechanism; and the driving system is composed of a servomotor and a harmonic speed reducer, and is fixed on the base frame of the quick-change base through threaded connection. The compact quick-change mechanism disclosed by the invention has the advantages of compact structure, light weight, reliable transmission, high quick-change efficiency and the like.

A portable, hands-free and user friendly breast pump for facilitating breast-feeding, incorporates a dome-shaped housing having a servomotor mechanism; a hat-shaped flange having a chamber portion, a brim portion and an outlet, the chamber portion being formed so as to be placed over a nipple on a breast so as to define a chamber between the flange and the breast, and the brim portion being formed to surround the nipple and thereby form a suction seal therebetween; and a one-way venting element formed to operatively communicate with the chamber so as to vent pumped milk from the chamber via the outlet. The housing, the flange and the venting element are connected into an integral device held against the breast and underneath clothing so as to keep the integral device hidden. Breast milk is collected via a plastic collection bag that connects directly with the pump underneath clothing such that the milk is isolated from any contaminants in the air and may be easily stored immediately after being collected.

A laser beam source and an operating method thereof is provided for a directional infrared countermeasures (DIRCM) weapon system for defensively countering guided missiles having infrared seeking heads, by directing an infrared laser beam at the guided missile so as to disorient, saturate, or irreversibly destroy the IR detectors and circuitry arranged in the target seeking head. The power, pulse frequency and spectral composition of the laser beam is adjustable and selectable as required to adapt to any particular defensive engagement. To achieve this, the laser beam source comprises an Nd:YAG pumping laser and an optical parametric oscillator including an oscillator crystal arranged in a resonator cavity. The crystal includes a plurality of different periodically polarized crystal zones having different lattice constants. The adjacent zones can be grouped together into selectable crystal zone groups. The beam cross-section of the pumping laser beam corresponds to the cross-section of a single crystal zone or of a crystal zone group encompassing plural zones. The crystal is arranged on a slide table that is slidably displaceable by a servomotor, to move a selected crystal zone or group into the path of the pumping laser beam. Thereby the wavelength components and the relative intensities thereof of the output laser beam can easily be selectively adjusted.

The invention discloses a constant pressure automatic grinding method based on fuzzy adaptive force control. The grinding method comprises the following steps: detecting the contact force of a grinding head and a workpiece in a real-time manner to feed back force signals; changing an analog voltage value output by a controller according to a preset control algorithm, thereby controlling the output torque of an x-axis servomotor to control the contact force. The invention further provides a grinding device for realizing the grinding method. The grinding device comprises an industrial control main engine, a workbench, motion mechanisms, one-dimensional sensing equipment, a position sensor for acquiring the position coordinate of the workpiece, grinding equipment and workpiece clamping equipment. The grinding device can be used for detecting the normal grinding force in a grinding process based on an intelligent force control technology, and feeding back detection results; through the processing of the controller, driving signals are generated for continuous adjustment of the output torque of a driver, so that the normal grinding force can be controlled in a real-time manner and the constant pressure grinding can be realized.

A system for use in rehabilitation of a target patient is provided. The system includes at least two bicycle devices for use by the target patient and a second operator other than the target patient. The at least two bicycle devices each include pedals. At least one of the pedals may have at least one sensor mounted thereon for monitoring operation of the first bicycle device and the target's condition. A servomotor is coupled to the pedals for providing gear-like resistance or pedal assistance for the at least two bicycle devices. A controller is programmed to electrically couple the at least two bicycle devices to each other.

The invention relates to an automatic pipe machining machine which comprises an interchanging device, a chamfering device and a pipe expanding and punching device, wherein the interchanging device comprises a rotating disk and a servo motor for driving the rotating disk to rotate and interchange, the periphery of the rotating disk is provided with a plurality of clamping mechanisms used for clamping pipes; the chamfering device comprises a rose reamer and a chamfering motor, wherein the rose reamer passes through a drilling spindle head and is fixed on the drilling spindle head, the chamfering motor is used for driving the drilling spindle head to drive the rose reamer to rotate; the pipe expanding and punching device comprises a pipe expanding mechanism and a punching mechanism which are respectively arranged at two sides of the rotating disk, the pipe expanding mechanism comprises a pipe expanding mould and a pipe expanding cylinder for driving the pipe expanding mould to expand a pipe mouth, the punching mechanism comprises a puncturing mould, a pair of fixing blocks with punching needles, and a double-stroke cylinder, the puncturing mould is fixed on a center cylinder rod of the double-stroke cylinder and driven by the center cylinder rod to be positioned at the pipe mouth, and the two fixing blocks are respectively used for driving the two punching needles and arranged at two sides of the puncturing mould side by side as well as driven by an external cylinder rod on the double-stroke cylinder to slide along the direction vertical to the pipes.

A microbot includes a spherical housing, first and second servomotors that are located internal to the housing and oriented horizontally and orthogonal to each other, and a plunger within the housing that selectively extends in the vertical direction. Castors are attached to each servomotor; and traction balls corresponding to each castor are placed so that each ball frictionally engages both a respective castor and the interior of the housing at the same time. As the servomotors rotate, the attached castors also rotate, which causes rotation of the traction balls and rolling of the housing, and results in translation of the microbot in the horizontal plane. As the plunger rapidly extends, it strikes the interior surface of the housing with sufficient force to cause a hopping motion of the microbot in the vertical direction.

An exoskeleton interface apparatus includes five rigid links (2-6) arranged in series, capable of rotating reciprocally at the respective ends for monitoring angular movements of the arm, of the forearm and the wrist of an user (60) and having at the tip an handgrip (30) for engaging with the user (60) by reflecting a force feedback. The rigid links (2-6) can rotate at their ends about rotational joints (11-14) having rotational axes (31-34) incident in the intersection point of the physiological axes of the shoulder. The rotational joints (11-14) are brought into rotation about the respective rotational axes (31-34) by means of respective motors (21-24), for example servo-motor such as torque motors. All the motors (21-24) are mounted on the fixed base link (2) in order to minimize the mass of the parts in movement and the inertia reflected on the user (60). A plurality of idle pulleys (50) is provided, spatially arranged for orienting the tendons (41-44), which brake the free movement of the relative rotational joint, responsive to signals corresponding to constraints on the slave in case of teleoperation or to constraints created by virtual reality systems.

To reduce the cogging torque of servomotors, electric power steering motors, and others, there is provided a permanent magnet motor comprising: a rotor 10 comprising a rotor yoke 11 and a plurality of permanent magnets (M1-M10); and a stator 20 comprising a stator yoke 22, salient magnetic poles 21, and armature windings 23, wherein at least one of the permanent magnets is disposed in an adjustment position that is displaced from a corresponding reference position in at least one of the circumferential, radial, and axial directions of the rotor yoke, and the plurality of permanent magnets excluding the permanent magnet disposed in the adjustment position is disposed in the reference positions, and wherein the adjustment position is set so that the permanent magnet motor in which at least one of the plurality of permanent magnets is disposed in the adjustment position has a smaller cogging torque than a permanent magnet motor in which all of the plurality of permanent magnets are disposed in the reference positions; and a method for adjusting a cogging torque of a permanent magnet motor.

A device for detecting comprehensive performance of a ball screw assembly in a loaded state comprises a testboard machine body fixed on a cast iron platform, wherein a servomotor is arranged at one end of the testboard machine body; the output shaft of the servomotor is connected to one end of the ball screw assembly through a first coupler, a dynamic torque sensor and a second coupler; an eddy current sensor and a rotary encoder are arranged at the other end of the testboard machine body; a grating scale and an infrared temperature sensor are arranged on the testboard machine body; a rolling guide rail is arranged on the testboard machine body, and is provided with an analog working table; the analog working table is connected to the rolling guide rail through a rolling guide rail slide block, and is connected to a loading device; a ball screw assembly nut is arranged on the analog working table through a nut support base. The device is stable in properties, quick in movement and testing response speed, comprehensive and accurate in testing performance parameters, and simple in structure, and can realize the comprehensive performance detection of ball screw assemblies with different models in no-loaded states or loaded states.

An electrically actuated aircraft brake system and method which provides for brake wear measurement, brake running clearance adjustment, ram position-based control and improved construction and operation. Brake wear and running clearance measurement are obtained by analyzing the output of position sensing circuitry. The position sensing circuitry, preferably including a LVDT position sensor, is also used to determine braking load, a brake controller including circuitry for effecting displacement of one or more reciprocating rams to load a brake disk stack by a predetermined amount based on a present displacement value of the position signal obtained from the position sensor. The position sensor preferably includes a LVDT transducer connected between the reciprocating ram and a brake housing, and the motive device preferably includes a servo motor. Also provided is an actuator housing including a guideway for each ram, the guideway and ram having the same polygonal cross-section, whereby the ram nut is guided and restrained from rotation by the guideway as it is translated by a ball screw in threaded engagement with the ram nut for selective movement into and out of forceful engagement with the brake disk stack for applying and releasing braking force on a rotatable wheel. An electric motor is drivingly connected to each ball screw by a first gear integral with the ball screw, a second gear in mesh with the first gear, and a pinion on a rotating drive shaft of the electric motor.

The invention relates to a loading and unloading device of a work-piece. An automatic loading and unloading mechanical arm is composed of a positioning portion, a clamping portion and an inverting portion, wherein the clamping portion is connected with a sliding driver which is fixedly connected with an inverting mechanism, the inverting mechanism is in limited connection with a slider of a positioning mechanism, the slider is glidingly arranged on a guide track and is fixedly connected with a piston rod of a positional cylinder, and the positional cylinder and the guide track are respectively fixed on a top board. The invention employs the pneumatic control technique as a control and actuating mechanism which substitutes systems, such as an expensive numeric control servomotor and the like. Air is a medium of an air control mechanism. The invention has the characteristics of convenient using and maintenance, safety, reliability, low costs, long service life and the like. The invention has the advantages of wide adaptive range and low costs, and is capable of realizing the function of modularization and increasing the availability ratio of devices, being adaptable for wide promotion in market.

The invention discloses a digital electrohydraulic control system of a steam turbine with isolated network operation, comprising a control hardware part and a software logical operation part, wherein the control hardware part includes a speed measuring protection part, a one-time frequency modulation module, a servo control module, a man-machine interface part, a control unit and an input / output module; and the software logical operation part includes a first frequency modulation operation and secondary frequency modulation operation unit based on frequency deviation, an overspeed limit unit based on an actual rotating speed measuring signal and a logical judgment unit based on an actual power measuring signal. The control system carries out logical processing and operation on the frequency deviation and outputs a control signal to control an electrohydraulic servo valve through the servo control module to drive a servomotor so as to drive a valve to move, thereby controlling the steam admission quantity of the steam turbine to keep the balance between the output of a steam turbine generator unit and the receiving load of the steam turbine generator unit; in addition, the speed measuring protection part takes an accelerated speed signal as a trigger condition of overspeed limit, thereby effectively limiting the rotating speed overshoot generated by the steam turbine generator unit because of load shedding.

The invention provides resistance welding equipment and a welding control method. The resistance welding equipment consists of a frame, an electric cabinet and a PLC system, a welding transformer, an action mechanism, a welder controller, a waste box, an optical fiber sensor and a sensor controller, wherein the action mechanism consists of a baseplate, a main frame, a vertical cylinder, a main linear guide rail, a linear guide rail, a positioning manual press claw, a positioning fixture, a linear bearing, a main linear bearing, a positioning nut, an adjusting pressure spring, a screw mandrel, a servomotor, a coupler, a displacement sensor, a clamping cylinder, a pressure sensor, a left electrode, a right electrode, left and right linear guide rails, left and right linear bearings, an auxiliary frame, a connecting rod and a clamping pressing plate. The pressure sensor and a tracking system are adopted to collect pressure signals, the displacement sensor and the tracking system are adopted to collect displacement signals, and a PLC operational program is adopted for control, so that the welding of metal workpieces adopts dynamic on-line control to comprehensively monitor various welding control points in the whole process, and the welding deformation is controlled between 0.01 and 0.45mm to ensure welding quality.

A slidable and hinged door, e.g., in a motor vehicle, in which the door is displaceable from the plane of a door opening by at least one swivel arm developed as a double hinge, and, for the sliding function, is displaceable into a plane arranged in front of it that is approximately parallel to it and is slidable in the plane arranged in front of it by a parallel guidance, may be simple to handle and to be operated by motor, at the same time as having a simple arrangement from a construction point of view. The swiveling motions and / or the swiveling possibilities for the operation of the door are able to be activated or determined within the double hinge by servomotors engaging at the first and the second hinge of the double hinge.

Social robot formed by an artificial vision system composed of webcam cameras, a voice recognition system formed by three microphones arranged in a triangular configuration, an expression system composed of an LED matrix, formed by a plurality of LEDs and a status LED, and eyelids formed by half-moons connected to gearwheels which engage with respective servomotors via transmission wheels, a speech synthesis system composed of loudspeakers, a system for detecting obstacles which is formed by ultrasound sensors, and a movement system formed by two driving wheels.

A power generating system wherein a turbine is mounted on top of a tower or tethered underwater. The turbine includes a rotor having a main blade connected to a rotor hub and an extender section. An adjusting device positions the extender blade between a retracted position within the main blade and to an extended position to expose more or less of the rotor to the fluid flow. The adjusting device includes a servo-controlled rack and pinion mechanism that converts rotation of the pinion by a servomotor into linear motion of the extender blade. A generator is connected to the turbine for generating electrical energy.