169results about How to "Stable and accurate operation" patented technology

The invention discloses automatic build-up welding equipment for an abrasion-resistant layer on an inner wall of a pipeline and an automatic build-up welding method for realizing efficient automatic production of high abrasion-resistant composite conveying pipelines. The equipment comprises a host, a direct-current gas protective welding power supply, a protective gas storage tank and a control box with a built-in automatic control device; one end of a base is provided with a head, a main shaft, a chuck and an adjustable roller bracket; the other end of the base is provided with a welding gun running execution device, and the device comprises a driving and reversing platform, a swing platform, a welding gun lifting mechanism, a wire feeder and a welding gun; the front end of the welding gun is provided with a welding torch, and a welding wire and a protective gas conveying pipe are communicated to the front end of the welding gun; the anode of the welding power supply is connected with the welding torch, and the cathode of the welding power supply is connected with a workpiece; and the moving parts are driven by a step motor through the automatic control device. The operation process comprises early preparation, parameter setting, welding and reset stopping; and by setting control parameters, the execution parts run according to the set parameters to form build-up welding layers tightly arranged and uniformly distributed in a spiral motion locus.

The invention discloses an automatic turntable driving structure. The automatic turntable driving structure comprises a vertically-arranged central shaft and a turntable rotatably arranged on the central shaft, a revolution gear driving the turntable to rotate is arranged in the center of the turntable, the revolution gear and the upper end of the central shaft are fixed, the revolution gear is driven by a revolution drive motor through a driving gear in a meshing mode, the driving gear is arranged on an output shaft of the revolution drive motor to be meshed with the revolution gear, a work station A, a work station B and a work station C are evenly distributed on the turntable in the circumferential direction, a vertical rotary shaft is arranged on each work station, an autoroatation chain wheel is arranged at the bottom end of each rotary shaft, an autoroatation drive motor is arranged on the turntable, and the autoroatation drive motor drives the autoroatation chain wheels on the three work stations to rotate through a chain on a chain wheel set. The driving structure is obviously simplified, and production cost is lowered.

A high pressure fuel flow control device wherein pressure sensors are interposed on either side of the main restriction point of a refueling depot when the vehicle tank(s) to be refilled are interconnected in a flow circuit that connects the refilling depot and the vehicle tanks. The sensors measure pressure on the side of the depot tank[s] and pressure on the side of the vehicle tank at a restriction point in the gas flow circuit. Flow from a tank is complete and a tank is switched when the difference in the pressures sensed on opposite sides of the restriction point approaches zero or slightly greater than zero.

The PROM area is adjacent to the normal memory cell area. The data writing (normal writing) and the data reading (normal reading) for normal memory cell areas and the data writing (redundant writing) for the PROM area are carried out from the side of the normal memory cell areas. The data reading (redundant reading) for the PROM area is carried out from the side of the PROM area. In the PROM area, the PROM cells having the same structure as that of the normal memory cells are connected to the redundant sub bit lines. In the redundant writing, in the select gate area, the redundant sub bit lines and main bit lines are connected. In the redundant reading, in the redundant gate area having the same layout as that of the select gate area, the redundant sub bit lines are connected to redundant bit lines.

The invention relates to a loading and unloading system for a 3D hot bending machine. The loading and unloading system comprises a machine frame, and a 2D glass feeding assembly, a 2D glass reclaiming manipulator, a 2D glass positioning platform, a 2D glass loading manipulator, a mould placing platform, a mould handling manipulator, an upper mould handling manipulator, a 3D glass unloading manipulator, a 3D glass positioning platform, a 3D glass plug-in manipulator and a 3D glass storage assembly which are arranged on the machine frame, wherein the mould handling manipulator is butt-jointed with the 3D hot bending machine and the mould placing platform, the upper mould handling manipulator is butt-jointed with the mould placing platform, the 2D glass reclaiming manipulator is butt-jointed with the 2D glass feeding assembly and the 2D glass positioning platform, the 2D glass loading manipulator is butt-jointed with the 2D glass positioning platform and the mould placing platform, the 3D glass unloading manipulator is butt-jointed with the mould placing platform and the 3D glass positioning platform, and the 3D glass plug-in manipulator is butt-jointed with the 3D glass positioning platform and the 3D glass storage assembly. The loading and unloading system provided by the invention can be combined with the 3D hot bending machine to form an automated assembly line.

An apparatus and method generating an optical pulse of picosecond class (having a high duty ratio), which accurately and stably operates at an arbitrary repetition frequency, has a high OSNR, and is not restricted by an RF modulation frequency, are provided. New modulation spectrum components are generated by performing phase modulation for light output from a single wavelength laser light source with an optical phase modulator. The phases of the modulation spectrum components are aligned by a phase adjuster, so that a pulse wave in a time domain is generated.

The present invention provides an intelligent prediction and control system and method for the fish-vegetable coexisting system. The acquisition module in the system acquires the environment data of the fish-vegetable coexisting system; the prediction control module predicts the content of dissolved oxygen in a fish pound of a period in the future and generates a control command based on the prediction result; the circulation module controls the fish-vegetable coexisting system in real time and increases oxygen according to the control command. The method comprises the following steps: while conducting circulation control on the system, acquiring the environment data; standardizing and pre-treating the environment data; based on the particle swarm optimization algorithm, optimizing the fuzzy neural network control algorithm to obtain the prediction control model of the dissolved oxygen in the fuzzy neural network; and obtaining a prediction result on the content of the dissolved oxygen in a fish pound of a period in the future so as to control the fish-vegetable coexisting system. According to the invention, the prediction and control of a fish-vegetable coexisting system can be carried out at the same time, and oxygen can be added in accordance to the requirement, so that oxygen can be added more accurately and timely. Therefore, the fish-vegetable coexisting system runs accurately and stably.

Stepper motor winding current regulation methods and apparatus adapt a maximum blanking period to generate an adapted blanking period that is proportional to a currently-selected current regulation set-point. Sensed winding current feedback is ignored at a current regulation controller during the adapted blanking period or during a minimum blanking period, whichever longer, to avoid attempting to track noise imposed upon a sensed winding current feedback signal at an initiation of rapid current changes di / dt. Doing so may decrease ripple in the motor winding current waveform and reduce zero-crossing distortion by decreasing overshoot of the current regulation set-point by the sensed winding current.

The invention provides a kind lf balance control way of open style industry recycling cooling water's weight concentration and pharmacy concentration .And weight concentration balance control way mainly controls the amount of water and salt of the industry recycling cooling water system ,according to the weight concentration N to control the add water and sewage water effectively to realize the balance control over the weight concentration of the industry recycling cooling water .And the pharmacy concentration balance control way is carried out on the basis of the weight concentration balance control way ,on the basis of weight concentration no change ,through adjusting and controlling the add water amount and dosing amount's proportion ,making the add dosage equal to the losing dosage in the same time of the system ,so realizing the pharmacy concentration keeping no change in the recycling water .The invention's advantages are saving water source ,keeping water quality stable ,etc.

A video camera includes a gate circuit for extracting a sharpness signal relative to an area which is set in a portion of a picture, a focus adjusting device for performing focus adjustment on the basis of the sharpness signal relative to the area, and an area selecting circuit for controlling the gate circuit to vary the area in size and determining a size of the area during a driving of a variator lens in accordance with a size of the area and a focal length used before the driving of the variator lens.

A wafer case is inserted into a packaging bag, and an ear folding and shaping bar is pressed against a root of each corresponding triangular ear portion, making a folding back line in each triangular ear portion. Each of the triangular ear portions is folded back over a container side surface by a bag rear end ear folder. The folding operation for each of the triangular ear portions is performed precisely and smoothly.

The invention discloses an automatic hardware spraying process. The process includes that a revolution driving motor is started after a worker puts hardware on at a workstation A; when a to-be-sprayed product rotates to a workstation B along with a turntable, an autorotation driving motor is started after an electric eye sensor receives a signal; rotating shafts on the workstation B and a workstation C drive the product to rotate, and spraying guns are started to spray the product; the spraying guns are stopped after spraying is completed, the autorotation driving motor is stopped, and the revolution driving motor is started to enter a next working procedure. By the automatic hardware spraying process, production cost is lowered, and production efficiency is improved.

A slat structure for a Venetian blind includes an upper and a lower beam with a ladder rope and a retaining cord mounted there-between to operatively work with a plurality of slats thereby wherein the slat is made of a flexible slat piece having a supporting member of a proper thickness integrally combined with engaging edges disposed at both longitudinal sides thereon respectively. The supporting member can be made of transparent, non-transparent, or mixed-color fastening plastic material that is capable of being molded in various shapes such as a round column-like rod, a triangular elongated rod, or a rectangular elongated rod, etc., economically facilitating an easy and fast production and assembly of the Venetian blind thereof. Besides, both the upper / lower sides and the sectional side of the engaging edges of each blind slat are precisely bound at the supporting members therein without any gaps produced there-between, efficiently boosting the beauty of the Venetian blind thereof as a whole.

The present invention is to disclose a SIL near-field flying head flying state control structure in which the SIL is installed in a lens holder that can be biased. The lens holder includes three detection points spaced around the SIL for detecting the distance between each detection point and an optical disk, and a number of single-axis displacement devices for controlling the corresponding lateral side of the lens holder to move axially relative to the optical disk. A server can control the single-axis displacement devices to adjust the posture of the lens holder subject to the distance between each detection point and the optical disk measured, keeping the parallelism between the SIL and the optical disk within a predetermined level.

Provided is a construction method for constructing a double-limb hollow high-pier mould side hydraulic jacking creeping formwork and a double-limb hollow high pier. The creeping formwork comprises an integral truss construction platform, a formwork system and a hydraulic jacking device. The integral truss construction platform is erected outside a double-limb concrete pier wall to be poured, the hydraulic jacking device is supported on the outer side of an outer formwork and simultaneously is jacked on the bottom surface of the integral truss construction platform to control the jacking of the integral truss construction platform, the formwork system consists of an inner formwork and the outer formwork which are connected through a draw rod, and a shear key is arranged at the plugging position of the outer formwork and the draw rod. In construction, the jacking of the integral truss construction platform is achieved through shear key transferring and track supporting, the inner formwork and the outer formwork are hoisted by a crane derrick mast to an upper-layer construction section through supporting of the integral truss construction platform, and the construction method has the advantages of being high in mechanization degree, good in safety, high in construction efficiency and the like and can be widely applied to concrete construction of the double-limb high pier bridges.

Stepper motor winding current regulation methods and apparatus continuously and bi-directionally sense winding current to determine both the magnitude of the winding current and the slope of a waveform representing the winding current. The magnitude and slope information is used to more precisely control periods of current rise and characteristics of fast and slow current decay during pulse-width modulation (“PWM”) regulation cycles. Winding current rise and decay shaping is based upon the sensed magnitude of the winding current, the magnitude of the winding current regulation set-point ITRIP, whether the sensed winding current is greater than or less than ITRIP at a selected sampling time, whether the sensed winding current is increasing or decreasing when a waveform of the sensed winding current crosses over ITRIP, and whether or not the magnitude of ITRIP changes during a PWM cycle in response to a receipt of a subsequent DAC code.

The invention provides a mecanum wheel movement device. The mecanum wheel movement device comprises a frame and mecanum wheels located on the two sides of the frame, wherein one side of the frame is connected with a connection rod suspension structure; a connection rod comprises two connection rod suspension brackets; the two connection rod suspension brackets are in rotational connection with the frame; a linking rod is connected between the two connection rod suspension brackets; one end of the linking rod is in rotational connection with one connection rod suspension bracket and the other end of the linking rod is rotational connection with the other connection rod suspension bracket; each connection rod suspension bracket is in rotational connection with one mecanum wheel; on the same connection rod suspension bracket, the heights of the rotational connection position of the connection rod suspension bracket and the frame and the rotational connection position of the connection rod suspension bracket and the linking rod are different. The connection rod suspension structure is arranged so that the problem that the mecanum wheels cannot touch the ground at the same time when driving on an uneven road surface is solved, and the mecanum wheels of a whole car can effectively touch the ground; the effectiveness and the stability of the movement of the mecanum wheels are guaranteed.

A variable resistance hand rehabilitation device and corresponding system. Improvements over the prior art include: a new damping system or damper design, to reduce friction and increase maximum force output; a dynometer feature that enables converting the dynamic device to a static grip force measuring device; a closed-loop controller; and a new graphic user interface for the medical practitioner and new virtual reality game software that allow accurate and smooth operation of the device and increased patient motivation.

The invention discloses a greenhouse quilt rolling machine and an operating method thereof, and belongs to the field of construction agriculture. The machine consists of a motor, a reducer, a guide rail bracket, a middle quilt rolling mechanism, a stroke control box, rolling shafts on two sides, and a double-row arc guide rail. A greenhouse is formed by east, west and north enclosure walls and a north-south roof arch frame; a transparent plastic film is laid on the north-south roof arch frame; the double-row arc guide rail is fixed on the north enclosure wall and the ground foundation at the front end of the south side of the greenhouse and is arranged above the north-south roof arch frame of the greenhouse; and the rolling machine is arranged on the double-row arc guide rail, and moves up and down along the double-row arc guide rail. The invention solves the problem that the thermal insulation quilt rolling reciprocating movement causes pressure on a roof steel structure and fatigue deformation of steel structural components, solves the problem that narrow thermal insulation quilts in the middle of the greenhouse cannot be synchronously rolled, and cannot cause early destructive wear of the plastic film on the roof or influence the service life of the plastic film.

The invention discloses an automatic turntable for hardware spraying. The automatic turntable comprises a turntable frame. A turntable body is arranged upon the turntable frame. Positioning bearings are arranged on the upper portion and bottom portion of the turntable frame. A central shaft is arranged in the positioning bearings. A revolution gear which is arranged in the center of the turntable body is used for driving the same to rotate and fixed to the upper end of the central shaft. A revolution drive motor which is arranged on the turntable frame drives the revolution gear to rotate. A station A, a station B and a station C are circumferentially and uniformly formed on the turntable. Vertical rotary shafts are arranged on the stations. Product fixtures are arranged at the upper ends of the rotary shafts, and rotation chain wheels are arranged at the lower ends of the rotary shafts. A rotation drive motor which is mounted on the turntable drives the rotation chain wheels on the stations to rotate through a chain. By the automatic turntable, production cost is remarkably reduced, and production efficiency is improved.

An optical phase modulator made of lithium niobate or the like phase-modulates the output light of a single-wavelength laser light source 20 that emits CW light, and the phase-modulated light is inputted to a dispersion medium 22. The positive chirp and negative chirp of light to which frequency chirp is applied by phase modulation draw near in the dispersion medium and an optical pulse is generated.

The invention belongs to the technical field of handling equipment and relates to a special wheel cake loading and unloading robot for an automatic production line. A rotating arm of the robot is connected with a machine body through a gear pair and is connected with paws through guide pillars; a rotating servo motor is connected with the rotating arm through the gear pair and drives the rotating arm to rotate, and a paw lifting oil cylinder is connected with the paws through a steel wire rope; the steel wire rope changes in direction twice through a pulley block so as to drive the paws to ascend and descend; a paw opening and closing oil cylinder drives the paws to open and close through a connecting rod group so as to clamp a wheel cake workpiece; and a rotating flashing light is fixed on the rotating arm through a screw. The special wheel cake loading and unloading robot has the advantages of being high in repeated positioning accuracy, more accurate and stable in running, higher in rotating speed and easier to control, reaching a max rotating angel speed of 0.25rad / s, reducing power dissipation substantially, and having a stable clamping effect and a self-locking function.

The invention relates to an engine subpackage line heavy plate chain which comprises a bearing track, a driving device, a tensioning device, a conveying chain and bearing panels. The driving device and the tensioning device are arranged at the two ends of the bearing track, the conveying chain is meshed with a driving chain wheel of the driving device and a tensioning chain wheel of the tensioning device, and the multiple bearing panels are installed on the conveying chain in an end-to-end mode. The engine subpackage line heavy plate chain is characterized in that the upper end faces of some of the bearing panels are connected with prying body supports, the two sides of the ends of the lower end faces of all the bearing panels are connected with the conveying chain, and the middle portions of the lower end faces of all the bearing panels are connected with idler wheel sets. The engine subpackage line heavy plate chain is ingenious and reasonable in structure, the idler wheel sets are arranged below the bearing panels, and the effects that the conveying chain runs stably and accurately, and a line body can bear heavy loads can be ensured. The upper end faces of the bearing panels are connected with the prying body supports, therefore various types of articles can be conveyed, a stop block which can be opened or closed is arranged on a front support in each prying body support, and therefore the effect that a prying body is safe and does not slip off in the conveying process is ensured.

The invention provides a multi-point touch tracking identification method and a multi-point touch tracking identification system. The method comprises the following steps of: acquiring touch point positions in two adjacent frames of images respectively; calculating the distance between the touch points of the images of the front frame and the rear frame according to the touch point positions; screening actual association between the touch points according to the distance, and gradually searching the association modes of the touch points of the images of the front frame and the rear frame according to the sequence of the distance of the touch points; and calculating the touch point dispersion degree of the association mode searched every time, and judging that the previous association modeis an optimal association mode when the touch point dispersion degree of the later association mode is greater than the touch point dispersion degree of the previous association mode for the first time. According to the multi-point touch tracking identification method and the multi-point touch tracking identification system, accuracy and robustness of the association of the touch points in the front frame and the rear frame are ensured by global analysis. By screening the actual association between the touch points, the tracking identification efficiency is improved.

The invention provides a method for rapidly identifying repeated freeze-thaw meats. The method for rapidly identifying the repeated freeze-thaw meats comprises the steps of preparation of a sample tobe tested, MALDI-TOF-MS determination, data processing, and PCA analysis; wherein the sample m / z interval detected by the MALDI-TOF-MS method is400 to 3000 Da. The method for rapidly identifying repeated freeze-thaw meats provided by the invention can stably and accurately realize the identification of repeated freeze-thaw meats; the method is simple and easy to operate; and the result is intuitive.

Disclosed herein is a dental rescue implant implanted into an alveolar bone for forming a root of an artificial tooth. The dental rescue implant includes: a wide sectional body part having a sectional diameter of 6.5 mm to 8 mm, greater than a sectional diameter of 6 mm of a typical implant body part, whereby the wide sectional body part can be implanted directly into the corresponding alveolar bone without refilling a damaged part with a bone substitutive material when implant surgery ends in failure; and a wide screw thread formed on the outer periphery of the wide sectional body part, the wide screw thread being formed at 1˜1.75 pitch intervals, whereby the wide sectional body part is implanted into the alveolar bone with relatively small resistance. The implant can be directly implanted into the alveolar bone without refilling a damaged part with a substitutive material even though a molar teeth part is lost or implant surgery ends in a failure by complex factors.

The invention discloses a method for positioning a mechanical arm intelligent charging pile. The charging pile comprises a mechanical arm and a control mechanism capable of operating automatically. According to the method for positioning the mechanical arm intelligent charging pile, the charging pile can be intelligently positioned through a starting system and a detecting system together with a series of steps of target instruction receiving, coordinate transformation, target operating angle calculation, mechanical arm movement control and the like; and positioning is fast and accurate, labor cost is greatly reduced, and safety is improved.

The invention, which belongs to the technical field of the motor, provides a motor comprising a case, a main shaft, end covers, a bearing seat, moving parts, a bearing and control parts. The moving parts include a permanent-magnet rotor and a stator winding. The control parts include a rotating transformer and a junction box. A main shaft is arranged in the hollow space of the case coaxially. The moving parts are arranged between the case and the main shaft. The end covers are arranged at the two ends of the case; an oil supply hole is formed in the front end cover and is communicated with a channel, thereby realizing effects of lubrication and cooling. A framework oil seal is arranged between the main shaft and the bearing seat so as to realize a better sealing effect. Oil control rings are arranged between the main shaft and the bearing seat and between the main shaft and the front end cover; light surfaces of the oil control rings correspond to oil storage grooves; second oil outlets are formed in the oil storage grooves; and thus a cooling effect is realized. Third oil outlets are formed in the stator winding, so that a liquid discharging effect is good. Besides, a tail-end inclined oil channel is arranged on the rear cover, so that safety oil discharging is realized and the security is high. And with the rotating transformer, angle and position sensing and measuring are realized and the operation becomes stable.