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78results about How to "Quick Auto Adjust" patented technology

Pneumatic turbine driven double rotor test bench

The invention discloses a pneumatic turbine driven test bench. The pneumatic turbine driven test bench comprises a rotor system, a power system, a lubrication system, a test system and a safety system. An intermediate bearing is arranged between an inner rotor and an outer rotor; the outer rotor is driven by a pneumatic turbine; a control system is a feedback control system; compressed air drivesthe pneumatic turbine mounted on the outer rotor to rotate. After the compressed air provided by an air compressor enters a pressure stabilizing box, the compressed air flows through a pressure regulating valve and then flows out of a nozzle to impact the pneumatic turbine to drive the pneumatic turbine to rotate; the rotation speed of the outer rotor is detected by a rotation speed transmitter, and then the rotation speed is fed back to a rotation speed controller; the compressed gas flow is adjusted by controlling the opening of the pressure regulating valve to control the rotation speed ofthe outer rotor. In a supporting structure, squirrel cage elastic supports and elastic ring squeeze film dampers are combined, so that the stability of the rotors can be improved. The pneumatic turbine driven test bench can be used for the experimental study of the dynamic characteristics of the double rotor-support system with the coupling of the inner and outer rotors and the simulation and research of the rotor system vibration faults.
Owner:BEIJING UNIV OF CHEM TECH

Automatically-adjustable dome for truck

The invention discloses an automatically-adjustable dome for a truck, which belongs to the technical field of automobile parts. According to the automatically-adjustable dome for the truck, two self-locking structures are fixedly connected to the upper portion of the dome, and two push rod support seat structures are fixedly connected to the top of a cab and movably connected with the slide way cavities of the two self-locking structures respectively; the upper portion of the dome is movably connected with the front end of the top of the cab; the lower portions of two domes are fixedly connected with the both ends of the top of the cab respectively; an electric control device comprises a circuit board located in the interior, as well as a gear-type adjustor, an automatic control switch and a power supply switch which are located in the exterior, and a vehicle power supply is used for supplying power; a sensor and two electric push rods are connected with the electric control device. The automatically-adjustable dome for the truck disclosed by the invention is simple in structure, convenient to operate, safe and reliable, and capable of automatically adjusting the height thereof rapidly and conveniently according to the different heights of the containers carried in the truck or different working conditions such as no-load, thus realizing a good drag reduction effect and saving fuel oil; the height of the dome can also be randomly controlled in a part of occasions, thus improving the adaptability of the device; corrective designs can also be performed aiming at different truck types, thus achieving a wide adaptation range of the truck types.
Owner:JILIN UNIV

Deep stirring ship self-balancing system and method

The invention discloses a deep stirring ship self-balancing system and method. The system comprises a pipeline system and an automatic control system, wherein the pipeline system comprises tilt-adjustable water ballast spaces, a tilt-adjustable pump unit, a pipeline and valves; the automatic control system comprises a draft sensor, a tilt meter, a liquid level switch and a PLC control system. The liquid level of each tilt-adjustable water ballast space is adjusted by virtue of the obtained draft levels at four corners of the bottom of the deep stirring ship measured by the draft sensor, the liquid level of each tilt-adjustable water ballast space detected by the liquid level switch and the inclination angle and inclination direction detected by the tilt meter, so that the liquid level reaches a liquid level set value enabling the deep stirring ship to restore to a balancing position. With the adoption of the system or method disclosed by the invention, when the ship transversely tilts and longitudinally tilts, rapid, accurate and automatically adjustable ship balancing can be realized, so that the ship can be automatically kept balanced under influences of stormy waves and construction operations, and the case that the ship construction safety is threatened due to too large transverse and longitudinal inclination angles is avoided.
Owner:CCCC SHANGHAI DREDGING

Radar communication antenna capable of precisely adjusting signal receiving height and azimuth

InactiveCN107181042AGood signal adjustmentPlay the function of lifting limitAntenna supports/mountingsGear driveRadar
The invention relates to a radar communication antenna capable of accurately adjusting signal receiving height and orientation, comprising a base, a base frame is welded on the base, and a base cover is welded on the top of the base frame; the base frame is provided with a guide groove in a spiral structure, the base frame The outer wall is equipped with a support sheet in a spiral structure, and a guide chute in a spiral structure is arranged on the support sheet; a ring-shaped guide mechanism is installed at the lower end of the base cover, and a rotating gear is installed at the lower end of the ring-shaped guide mechanism. The left and right sides of the rotating gear Both ends are meshed with a driving mechanism; a sliding mechanism is installed in the guide chute, and an antenna mechanism is installed on the sliding mechanism; a winding mechanism is installed on the lower surface of the rotating gear, and the driving mechanism, rotating gear, ring guide mechanism, The mechanism, the sliding mechanism and the antenna mechanism cooperate to move to complete the spiral lifting and guiding process of the antenna mechanism. The invention can realize the functions of stable automatic spiral lifting signal height of radar antenna and precise adjustment of signal receiving azimuth.
Owner:苏炎杰

Automatic adjusting system and method of laser resonant cavity reflector

The invention provides an automatic adjusting system of a laser resonant cavity reflector. The system comprises a remote angle adjusting device, a light beam monitoring device and a data processing module. The light beam monitoring device is configured to detect the centroid data of a laser output by a laser in real time, compare the centroid data with initial centroid data to determine whether the centroid data exceeds a centroid fluctuation range or not, and convert the centroid fluctuation quantity and the fluctuation direction into driving signals and send the driving signals to the remoteangle adjusting device if yes. The present invention further provides an automatic adjusting method of a laser resonant cavity reflector. The method can monitor the parameters of the laser output bythe laser in use in real time to determine whether a laser resonant cavity reflector is moved or not, can determine the movement data of the laser resonant cavity reflector according to the parameterchange trend and can feedback the movement data to the automatic adjusting system of the laser resonant cavity reflector to achieve rapid and automatic adjusting of the laser resonant cavity reflectorso as to improve the adjustment rate of the reflector and improve the use efficiency of the laser.
Owner:CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI

Posture adjusting device and method for cold atom interference type gravimeter probe

The invention discloses a posture adjusting device and method for a cold atom interference type gravimeter probe, and relates to the field of cold atom interference precision measurement. The device is characterized in that a supporting plate, three electric supporting legs or two electric supporting legs and a common supporting leg are arranged on a supporting surface; a probe is arranged on thesupporting plate, and an inclinometer is arranged on the probe or the supporting plate; the electric supporting legs, a circuit and a computer are sequentially connected; and the inclinometer and thecomputer connection. According to the method, the calibration process comprises the steps of A changing the posture of a probe point by point; B recording inclination angle data, and recording probe output; C and carrying out fitting; the adjusting process comprises the steps of a placing the probe; b reading an inclination angle; c carrying out a PID algorithm; d enabling the electric supportinglegs to stretch out and draw back; and e the inclination angle value being equal to the calibration inclination angle value. According to the invention, the posture of the gravimeter probe can be adjusted rapidly and automatically, so that the operation laser wave vector direction is parallel to the gravity direction; enough data points can be obtained; the calibration inclination angle value is accurately determined; and the system error of the gravimeter is reduced.
Owner:INNOVATION ACAD FOR PRECISION MEASUREMENT SCI & TECH CAS

Bus voltage stabilization control device

The invention discloses a bus voltage stabilization control device. Firstly, high-end bus voltage and low-end bus voltage are respectively sampled by two bus voltage sensors; then, the sampling values are respectively transferred into a high-end bus voltage controller and a low-end bus voltage controller and are compared with the expected values; when the voltage sampling values are less than theexpected voltage values of the buses, the duty ratio of pulse width modulation signals is correspondingly reduced so that the output power of a half-bridge inverter circuit is reduced, and the storedenergy of a bus capacitor is increased, thus the voltage sampling values are increased until the voltage sampling values are equal to the expected voltage values of the buses; and the reverse is alsotrue. In the invention, by controlling corresponding output current values by the high-end bus voltage controller and the low-end bus voltage controller, the regulation of the bus voltage is realizedto enable the bus voltage to be in a stabilized state. Meanwhile, because the expected voltage values (Uref) of the buses in the high-end bus voltage controller and the low-end bus voltage controllerare same, the bus voltage is stabilized, and simultaneously, the balance of the high-end voltage and the low-end voltage of the buses is also realized.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA

Manual or self-adjusting reel mower

ActiveUS20070234697A1Quick Auto AdjustSpeed and consistency advantageMowersControl systemEngineering
A control system for a cutting reel unit includes a height-of-cut adjusting system and a reel-to-bedknife clearance adjusting system. The height-of-cut adjusting system includes a first frame; a second frame; a cutting reel supported by the second frame; a bedknife arranged adjacent to the cutting reel and supported by the second frame; at least one support element arranged to translate along the ground and arranged to support the first frame; and at least one first actuator connected between the first frame and the second frame and arranged to adjust the relative elevation of the second frame with respect to the first frame. The reel-to-bedknife clearance adjusting system includes at least one second actuator operatively connected between the reel and the second frame and a sound detector. The reel mower cutting unit may be manual or self-adjusting. In the manual mode, adjustments can be made by engaging and turning an adjustment actuator on the side of the cutting reel with a hand tool such as a socket wrench. In the self-adjustment mode, adjustments can be made by engaging and turning adjustment actuators with an output shaft of an electric motor. The same adjustment actuators are used in both adjustment modes, and the reel cutting unit may be converted between modes by fastening or unfastening electric motor assembly from the unit.
Owner:DEERE & CO

Method for adjusting reel-to-bedknife clearance

A control system for a cutting reel unit includes a height-of-cut adjusting system and a reel-to-bedknife clearance adjusting system. The height-of-cut adjusting system includes a first frame; a second frame; a cutting reel supported by the second frame; a bedknife arranged adjacent to the cutting reel and supported by the second frame; at least one support element arranged to translate along the ground and arranged to support the first frame; and at least one first actuator connected between the first frame and the second frame and arranged to adjust the relative elevation of the second frame with respect to the first frame. The reel-to-bedknife clearance adjusting system includes at least one second actuator operatively connected between the reel and the second frame and a sound detector. Once contact is detected between the reel and bedknife, the adjustment actuators may reverse direction and be energized in a direction that would increase the gap. Contact between the reel and bedknife will continue to be detected until true motion occurs such that a gap is formed between the reel and bedknife. The location where contact between the reel and bedknife is no longer detected is the “zero-gap point.” After true motion has begun, the control system monitors the incremental position sensor data and may command the actuators to increase the gap to a specific final gap position.
Owner:DEERE & CO

Aerial ladder fire truck rotary table and leveling control method thereof

The invention discloses an aerial ladder fire truck rotary table and a leveling control method thereof. A proportional valve is connected with a leveling oil cylinder. Two tilt angle sensors are arranged on the rotary table. The two tilt angle sensors and the proportion valve are electrically connected with a controller. The output error caused by signal jumping of one tilt angle sensor is eliminated through signal comparison of the tilt angle sensors. The controller monitors the current feedback of the proportion valve in real time. Closed-loop control is conducted on the opening size of the proportion valve. The angular speed of rotary table movement is combined with an automatic proportion valve specialist PID level system to achieve automatic leveling of the rotary table. The aerial ladder fire truck rotary table and the leveling control method are high in applicability, and automatic adjusting of rotary table leveling can be conducted quickly according to the angular speed of the rotary table; detection is conducted through the double tilt angle sensors, the output error caused by signal jumping of one single tilt angle sensor can be eliminated according to signal comparison of the tilt angle sensors, and the security level is increased; the proportion valve current change caused by proportion valve resistance heating can be eliminated through closed-loop control of the feedback current.
Owner:XCMG FIRE FIGHTING SAFETY EQUIP CO LTD

Hybrid simulation-based electromagnetic direct-current model automatic adjustment method and system

The invention relates to a hybrid simulation-based electromagnetic direct-current model automatic adjustment method and system. The method comprises the steps of obtaining initial running condition information from electromagnetic side power flow data, and assigning initial values to initialized information components of a pre-built electromagnetic direct-current model; based on control process parameters of the information components in the initial running condition information, adjusting a current running state of the electromagnetic direct-current model; and when current running state dataafter adjustment is consistent with the electromagnetic side power flow data, switching off a clamping power supply on a converter bus, thereby enabling the electromagnetic direct-current model and anelectromechanical side power grid to form a closed loop through a hybrid simulation interface, and starting hybrid simulation. Therefore, quick and automatic adjustment of running conditions of the electromagnetic side direct-current power transmission model in electromechanical-electromagnetic hybrid simulation of a large-scale alternating-current and direct-current power grid is realized; the workload of manual adjustment of running modes of the electromagnetic direct-current model during the hybrid simulation of the alternating-current and direct-current power grid is greatly reduced; quick adjustment of the running modes of the direct-current electromagnetic model is realized; and the simulation efficiency is remarkably improved.
Owner:CHINA ELECTRIC POWER RES INST +1

Ejector pin mechanism horizontal adjusting device

The invention provides an ejector pin mechanism horizontal adjusting device which comprises a plurality of ejector pin mechanisms and a plurality of ejector pin adjusting assemblies, wherein each ejector pin mechanism comprises an ejector pin and a jacking structure; the ejector pin adjusting assembly comprises a vertical displacement adjusting unit and an angle adjusting unit, the vertical displacement adjusting unit is connected with a fixing part of the jacking structure through a connecting piece, and adjustment of the vertex of an ejector pin in the height direction is achieved; and the upper end of the angle adjusting unit is fixedly connected with the cavity, and the lower end is fixedly connected with the vertical displacement adjusting unit for adjusting the angle between the ejector pin and the bottom surface of the cavity. According to the device, the ejector pin mechanism can be conveniently installed, the levelness is adjustable, and during installation, the angle between the ejector pins and the bottom surface of the cavity can be rapidly adjusted, so that the plane where the vertexes of the multiple ejector pins are located is enabled to be in a horizontal state; and after the cavity is adjusted to be horizontal, by adjusting the angle between the support and the bottom surface of the cavity, deviation of the vertex of the ejector pin in levelness caused by low machining precision or assembly errors of all equipment can be compensated, and the requirement for the machining precision of the equipment is lowered.
Owner:BETONE TECH SHANGHAI

High-precision variable air volume venturi valve

The invention discloses a high-precision variable air volume venturi valve which comprises a valve body shell, a valve element arranged in the valve body shell, an air volume adjusting mechanism and a moving rod connected with the air volume adjusting mechanism, and the moving rod is sleeved with the valve element; the air volume adjusting mechanism comprises a mounting plate fixed to the valve body shell, an air valve actuator mounted on the mounting plate, a connecting spline, a connecting rod connected with the connecting spline and a transmission rod rotationally mounted on the mounting plate, and one end of the transmission rod penetrates through the valve body shell to be connected with the moving rod; the other end of the transmission rod is fixedly connected with the connecting rod; and an output gear ring of an air valve actuator is arranged on the connecting spline in a sleeving mode, and the air valve actuator is used for driving the connecting spline and the connecting rod to rotate. The rotating process is controlled through the air valve actuator, and the rotating angle of the air valve actuator corresponds to the moving position of the valve element, so that the opening degree of the valve element is controlled, and accurate adjustment of the air volume is achieved.
Owner:SHENZHEN XINJING ENVIRONMENT TECH

Automatic direction-regulating type permanent-magnet direct-drive wind driven generator

The invention provides an automatic direction-regulating type permanent-magnet direct-drive wind driven generator, and relates to the technical field of wind driven generators. The automatic direction-regulating type permanent-magnet direct-drive wind driven generator comprises a power generator, wind wheels, a wind speed and wind direction measurer, a sensor, a controller and a storage battery, wherein the power generator is arranged on a platform at the upper end of the bracket; the two sides of the power generator are separately provided with a bearing base; a horizontal type main shaft is arranged on the bearing bases; the two end parts of the horizontal type main shaft are fixedly provided with wind wheels, and the wind wheels are of Senegal type structures; and a bearing is arranged between the platform at the upper end and a supporting column body. When the wind direction is not perpendicular to the horizontal type main shaft or exceeds a set value, the power generator can be in an electric state, so that the horizontal type main shaft deflects in a direction perpendicular to wind force until a perpendicular state, and the horizontal type main shaft is automatically recovered to a power generation state for generating power. According to the automatic direction-regulating type permanent-magnet direct-drive wind driven generator, the starting wind speed is low, the output torque is stable, the service life of a fan is long, the power generation efficiency is high, the structure is simple, and the space usage is less.
Owner:HEBEI UNIVERSITY OF SCIENCE AND TECHNOLOGY

Motor rotor axial clearance adjusting machine

The present invention discloses a motor rotor axial clearance adjusting machine. The adjusting machine includes a rack and an operation platform. A lower female die is fixed on the operation platform. A top pressing block is vertically installed on the lower female die in a sliding manner. A lower slide seat is vertically installed on the rack in the sliding manner. A top pressing transmission piece is fixed on the lower slide seat. A lower ejector pin is vertically installed on the lower slide seat in the sliding manner. The lower ejector pin is driven by a lower ejector pin lifting power apparatus. An upper slide seat is vertically installed on the rack in the sliding manner. The upper slide seat is provided with an upper pressing die. The upper pressing die is provided with a through hole. An upper ejector pin is installed on the upper slide seat in the sliding manner. The upper ejector pin is corresponding to the rear end of a motor rotor shaft. The upper ejector pin is connected with a measuring mechanism for measuring an upper ejector pin moving distance. The clearance adjusting machine can rapidly perform axial clearance adjustment on each motor before the motor leaves the factory, thereby greatly improving clearance adjustment precision, improving efficiency, facilitating adjustment, being applicable to mass production, and ensuring product quality stability.
Owner:JIANGSU LANGXIN ELECTRIC
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