307 results about "Double rotation" patented technology

An illumination optical system having a more simplified structure forms various quadrupole-shaped secondary light sources with two-time rotational symmetry with respect to an optical axis. The apparatus can provide illumination conditions that differ in two perpendicular directions on a radiation-receiving plane. In order to form a secondary light source with a quadrupole-shaped light intensity distribution on an illumination pupil plane, a diffractive optical device is provided in which an entrance light beam is converted into four light beams, and a light beam having a shape of four points centered about the optical axis is formed in a far field. The diffractive optical device is provided with a first diffractive optical member that is rotatable about a first axis parallel to the optical axis, and a second diffractive optical member that is rotatable about a second axis parallel to the optical axis, and that is arranged adjacent to the first diffractive optical member. A refractive optical device having first and second refractive optical members accomplishes similar results.

A decoupling parallel robot mechanism with single movement, double rotation and triple degree of freedom mainly comprises a fixed pedestal, a movable platform and three branches connected therewith. The first branch comprises two connecting rods which are connected by a reolute pair vertical to axis of a reolute pair connected with the movable platform and to direction of a movable pair connected with the fixed pedestal. The second branch comprises three connecting rods which are connected by a reolute pair and a column pair with parallel axes, axis of the column pair is vertical to axis of a reolute pair connected with the fixed pedestal and parallel to axis of the reolute pair connected with the movable platform. The third branch comprises three connecting rods which are connected by two reolute pairs with parallel axes and connected with the fixed pedestal by the column pair, axis of the column pair is vertical to axis of the reolute pair connected with the movable platform and parallel with axes of the other two reolute pairs. Three branches of the mechanism are parallel with three reolute pairs connected with the movable platform. The invention has movable decoupling, high movable platform flexibility, easily developed control system and more simple and convenient calibration.

The invention relates to a method for controlling frequency inverter air conditioner outdoor fan and compressor vibration noise. The rotation speed of a wind wheel (1) of an air conditioner outdoor fan is Y r/min. The number of the blade of the wind wheel (1) is Z. The rotation fundamental frequency of the blade of the wind wheel (1) is F1:F1=Z*Y/60 Hz. The rotation frequency of a compressor (2) is X Hz. The method is characterized in that when the operation frequency of the compressor (2) X is between 65 Hz and 150 Hz, the rotation speed of the wind wheel (1) is in the range of 800 r/min to 950 r/min, and the following relationships exist: the absolute value of the difference between the rotation frequency of the compressor X and double rotation fundamental frequency of the blade of the wind wheel (1) is greater than 5 Hz, namely |X-2*F1|>5 Hz. The method provided by the invention can greatly weaken or completely eliminate the vibration formed by the superimposition of the wind wheel and the compressor rotation noise, thereby the sound quality the noise of the air conditioner outdoor unit is significantly improved, the sheet metal structure resonance can be effectively avoided, the vibration can be reduced, the sound quality can be improved, the noise can be reduced, and the reliability of the whole machine can be improved.

The invention discloses a double-rotation SCR denitration method and an apparatus thereof. According to the invention, a first eddy flow catalytic reaction chamber and a second eddy flow catalytic reaction chamber are arranged along a denitrating tower body; a flue gas introduction pipeline is arranged on a sidewall of the denitrating tower body; several eddy flow atomizing nozzles are respectively arranged on inner periphery of the flue gas introduction pipeline and the inner periphery at top of the first eddy flow catalytic reaction chamber; when flue gas is introduced into the flue gas introduction pipeline, the flue gas and ammonia gas injected by the eddy flow atomizing nozzle are mixed, and a mixture enables spiral sinking along circumference of the first eddy flow catalytic reaction chamber from up to down in a tangent circle mode, under effect of a cyclone, and then the mixture enable spiral rise along circumference of the second eddy flow catalytic reaction chamber from down to up in the tangent circle mode. Under prerequisite that high efficiency denitration is ensured, catalyst amount is less, operation of technical means is simple and easy, compared with the prior art, a denitrating tower structure is simple, cost of the apparatus is low, denitration efficiency is high, energy consumption is low, escapement ratio of ammonia is reduced, denitration cost is greatly reduced, and economic benefit is obviously increased.

The invention provides a weight clamping mechanical gripper for metrological verification work. The weight clamping mechanical gripper comprises an alternating current servo motor, a speed reduction gear, a double-rotation direction screw rod, screw rod nuts, connecting pressure plates, a first clamp, a second clamp, linear guide tracks and linear bearings, wherein the alternating current servo motor is connected with the double-rotation direction screw rod through the speed reduction gear, two screw rod nuts are matched and connected onto the double-rotation direction screw rod, the two screw rod nuts are nested in middle holes in the first connecting pressure plate and the second connecting pressure plate, and the side surfaces B of the first connecting pressure plate and the second connecting pressure plate are respectively connected with the left angle bracket-shaped first clamp and the right angle bracket-shaped second clamp; the two linear guide tracks are arranged on two sides of the double-rotation direction screw rod in parallel, the linear bearing are assembled on the linear guide tracks respectively, and the linear bearings are nested in an upper hole and a lower hole in the first connecting pressure plate and the second connecting pressure plate. The weight clamping mechanical gripper provided by the invention has the advantages of simple structure, high reliability and high convenience in control, and can efficiently complete weight clamping and handling tasks in the weight metrological verification process.

A device for applying a time-varying magnetic field to a human or animal body for therapeutic purposes comprising magnetic unit that is made to rotate about two separate axes at the same time. housed within non-magnetic components, which insrotatably housed in a nonmagnetic free moving member, which itself may rotating about an axis oblique to the axis of rotation of the magnet. The device may be held in the operator's hand or attached to his or her clothing, and is powered by a small electric motor that drives the gears necessary to produce the separate rotary movements. One axis of rotation is in the direction of a rod mounted to the magnet, and the other axis is along an imaginary line that runs through the center of the magnet body, roughly perpendicular to the rod. The two rotational movements of the magnet produce both a time-varying field of magnetic flux density and a time-varying field of angular flux displacement.

The invention provides a double-rotation mixing and drying device for traditional Chinese medicinal materials. The double-rotation mixing and drying for the traditional Chinese medicinal materials comprises a stirring device, a box body, a motor cavity, a base and a filtering and drying device. The stirring device comprises a first motor and a second motor. The first motor is fixed to the upper end of the box body. The lower end of the first motor is provided with a stirring shaft. The second motor is fixed to the lower end of the box body and located in a motor cavity. A rotating shaft is arranged at the upper end of the second motor. A rotating drum seat is connected to the upper end of the rotating shaft. A supporting seat is arranged at the left end of the box body. The filtering and drying device are fixed to the supporting seat. The filtering and drying device comprises a filtering box, a first air inlet pipe, an air blower, a second air inlet pipe and an electric heating box. A filter layer and a dehumidifying layer are arranged in the filtering box. An electric heating wire bearing plate and an air outlet pipe are arranged inside the electric heating box. The electric heating wire bearing plate is arranged in the middle of the electric heating box. The electric heating wire bearing plate is provided with an electric heating wire and air guide holes. By the adoption of the double-rotation mixing and drying device for the traditional Chinese medicinal materials, mixing is convenient, uniform and rapid, and drying is uniform and efficient.

The invention discloses a high double-refraction photonic crystal fiber (PCF) comprising a fiber core and a cladding. Two small air holes are removed from the central part of an optical fiber so that an ellipse-like fiber core is formed; meanwhile, the structural arrangement of the air holes of the cladding is changed, and four pairs of large air holes and a pair of elliptic air holes are introduced to the cladding and connected to the fiber core, so that the optical fiber with the structure has double rotation symmetry, a cross-polarization mode is not degenerated again, and very high double-refraction is shown. Through changing the structure of the fiber core and adjusting the diameters of the large air holes and the ellipticities of the elliptic air holes within a certain range, the PCF is two orders of magnitudes higher than a common optical fiber due to the adoption of the mode of double refraction, and meanwhile, the optical fiber has a high nonlinear coefficient. The PCF provided by the invention has the advantages of simple structure, high double-refraction and high nonlinearity. The PCF with the structure can be used for manufacturing a polarization-preserving optical fiber and relevant optical fiber devices with proper nonlinearity or polarization characteristics.

Method and apparatus for manufacturing a synthetic resin-made hollow member incorporating an intermediate element are provided which enable operations of molding half bodies, abutting and joining the half bodies together, and molding an intermediate element in a series of steps, and which eliminate the necessity of such a manual work as may otherwise be required in incorporating the intermediate element into the half bodies. A pair of rotary injection molding dies are used which can be opened and closed relative to each other and are rotatable relative to each other over an angle of 60° for each turn, each die having a half body molding section including one male molding portion and two female molding portions in the direction of rotation for each rotational run over an angle of 120°, each die also having an intermediate element molding portion provided between specified half body molding portions in the direction of each rotational run over an angle of 120°. In each two rotational runs of the molding dies, a series of steps is carried out including first injection for molding a pair of half bodies and an intermediate element, molded product setting for matching two half bodies with the intermediate element set in place and abutting the two half bodies against each other, and second injection for injecting melted resin onto the abutting portions and joining the two half bodies, whereby a hollow member with the intermediate element set between the two half bodies can be obtained.

A double rotation type scroll expander that expands steam includes a first drive scroll, a second drive scroll, a driven scroll, a rotation mechanism that supports the driven scroll rotatably, and a revolving mechanism that couples the driven scroll to the first drive scroll and the second drive scroll to be capable of revolving relative thereto. The revolving mechanism includes: a plurality of metal revolving pins provided respectively between a first drive end plate of the first drive scroll and a first driven arm of the rotation mechanism and between a second drive end plate of the second drive scroll and a second driven arm of the rotation mechanism; and a plurality of metal revolving discs provided in relation to the respective revolving pins and disposed such that respectively corresponding revolving pins are coupled thereto eccentrically.

The invention discloses a Fresnel prism phase retarder for a double-rotation compensator ellipsometer. The Fresnel prism phase retarder consists of two rhombic prisms, and oblique bottom surfaces of one ends of the two rhombic prisms are bound to each other to form a symmetrical structure. The prism materials with corresponding refractive index are selected and oblique angles of the rhombic prisms are determined, an incident beam is emitted into the rhombic prism perpendicularly through the oblique bottom surface of the other end of one of the rhombic prisms, subjected to total reflection twice sequentially through the opposite two sides, emitted into the other rhombic prism through the binding surface of the two rhombic prisms, and further, subjected to total reflection twice through the two sides of the rhombic prism sequentially so as to be emitted out, so that the phase retardation required by the double-rotation compensator Mueller matrix type ellipsometer can be acquired. The phase retarder has good achromatism within bands of ultraviolet light, visible light and infrared light, is insensitive to the incident angle of the light beam, is convenient to process, can be used as a rotary compensator of the double-rotation compensator Mueller matrix type ellipsometer, and can meet the requirements of the double-rotation compensator Mueller matrix type ellipsometer to the broad spectrum band and the 127-degree phase retardation.

A tray assembly of microwave oven comprises a tray putting the heated food, a tray motor under the tray, a rotation shaft between the tray and the tray motor. The invention also includes a rotating machine combined with the bottom of the tray motor capable of making the integral tray motor rotate in a certain radius, so the tray can carry out a double-rotation taking the drive shaft of the tray motor and the revolving shaft of the rotating machine as the centre.

The invention discloses a polypropylene fiber reinforced inorganic polymer composite material and a preparation method thereof. Polypropylene beam-like monofilament fiber and sodium silicate are added in slag, and the mixture is excited by the sodium silicate to prepare the composite material; the adding amount of the polypropylene beam-like monofilament fiber is 0.024 to 0.06 percent of the weight of the slag; and the adding amount of sodium silicate is 11 percent of the weight of the slag. The preparation method comprises the following steps: dispersing the polypropylene beam-like monofilament fiber in the formula ratio in the slag at the room temperature; putting the mixture in a double-rotation double-speed purified paste stirrer for stirring; adding a water solution of sodium silicate in the mixture and evenly stirring the mixture to form an evenly mixed paste, wherein the ratio of water to the slag is 0.31; and forming the paste , putting the paste in a standard curing box for curing, and testing the compressive strength and the flexural strength of the paste. Compared with the slag inorganic polymer, the maximum flexural strength of the composite material at 28d is increased by 5.4 MPa, and the maximum compressive strength of the composite material at 28dis increased by 17.7 MPa. The preparation process has the advantages of easy operation, unnecessary heating and no three-waste emission, so the preparation process is a green preparation process.

The invention relates to a double-rotation-shaft precision workbench. The double-rotation-shaft precision workbench comprises a rotation workbench capable of rotating along a B axis, the lower portionof the rotation workbench is arranged in a swinging basket body, and the two ends, away from the rotation workbench, of the swinging basket body are fixed to an A-axis main shaft capable of rotatingalong an A axis. The outer edge of the A-axis main shaft is connected with a first torque motor, wherein the first torque motor can drive the A-axis main shaft to rotate, and accordingly the swingingbasket body can be driven to do the rotation movement along the A axis. The outer side of a rotation shaft of the rotation workbench is connected with a second torque motor, wherein the second torquemotor can drive the rotation shaft to rotate, and accordingly the rotation workbench can be driven to do the rotation movement along the B axis. The double-rotation-shaft workbench is arranged along the A axis and the B axis, the torque motors are adopted for direct drive, the rotation coordinate axis of a horizontal machining center has high positioning precision, and since the torque motors areadopted for direct drive, the inner space can be sufficiently utilized, the height of a rotation table is reduced, and the whole rotation table structure is more compact.

The invention relates to mechanical watch oscillators comprising an assembly consisting of a spinal and a temperature compensated balance. The spiral is embodied in a quartz substrate whose section is selected in such a way that the drifts of the spiral and of the balance associated therewith are thermally compensated. The substrate section can be embodied in the form of a section of single or double rotation.

The invention relates to a fabrication method of a seamless rear projection spherical screen and a device thereof. The fabrication method is characterized in that a reaction-type resin is injected into a hollow die by a double-rotation forming method so that the reaction-type resin can react and be cured on the inner side surface of a spherical die to form a base; and an optical projector is fabricated on the base by the same method. The method and the device can be used for fabricating the seamless rear projection spherical screen by simple operation, and the products have good uniformity.

The invention relates to a miniature insect-like double-rotation flapping wing air vehicle. The miniature insect-like double-rotation flapping wing air vehicle comprises a rack, a flapping-wing rotary transmission system, a left-side front-rear flapping system, a right-side front-rear flapping system and a tail-wing system, wherein a motor b drives a left-side front flapping wing, a left-side rear flapping wing, a right-side front flapping wing and a right-side rear flapping wing to flap at high frequency by a gear b, a gear c, a worm, a front turbine, a rear turbine, a front two-end corner shaft and a rear two-end corner shaft. A motor a drives the left-side front flapping wing, the left-side rear flapping wing, the right-side front flapping wing and the right-side rear flapping wing to move in a rotating manner by a gear a, a gear f, a gear d, a gear e, a transmission shaft, a gear h, a gear g and a gear i. Compared with the prior art, the miniature insect-like double-rotation flapping wing air vehicle has the advantages that each flapping wing can move in a rotating manner; the transmission of the turbines and the worm has self-locking performance; complete symmetry of flapping of the left-side flapping wing and the right-side flapping wing is realized by the turbines and the worm; and a flapping mechanism formed by the two-end corner shafts and cylindrical supporting rods is simple in structure and flexible in flapping.

An over-constrained few-joint five-freedom-degree parallel serial robot mainly comprises a fixed platform, erect type vertical frames, a single-rotation-pair rotation frame, a double-rotation-pair rotation frame, a movable platform, a work platform, three branch chains the same in structure and a two-freedom-degree posture adjusting head. The work platform is arranged in front of the fixed platform, and the erect type vertical frames which are symmetrically arranged are arranged on the two sides of the fixed platform correspondingly. The three branch chains are arranged between the two erect type vertical frames and the movable platform, and the two-freedom-degree posture adjusting head is arranged at the lower end of the movable platform. A two-rotation and one-motion three-freedom-degreeparallel mechanism is formed by the erect type vertical frames, the movable platform and the three branch chains. The over-constrained few-joint five-freedom-degree parallel serial robot is simple instructure, the integral rigidity of the structure is improved, the control difficulty is lowered, the kinematics analysis is simple, and the dynamic response is good. Through combination of a two-freedom-degree swinging head and the movable platform, the work space of a machine tool is enlarged, the sensitivity of the machine tool is improved, and error accumulation caused by the component machining error and the assembling error is effectively avoided.

The invention discloses a header of a cane harvester, which comprises a machine frame, an upright post mounted on the machine frame, and a lifting slider thereof, wherein an electric lifting mechanism is connected to one side of the lifting slider, the electric lifting mechanism is formed by a lead screw pair connected between the upright post and the lifting slider, and a lifting motor connected with the lead screw pair through a retarding mechanism. A cutter equipped with a main motor and a double rotation cutter blade plate is connected to the other side of the lifting slider, and a balance cylinder for balancing the weight is mounted between the machine frame and the cutter. A cutter lifting sensor is further mounted at the lower part of the machine frame, so as to form a cutter height automatic adjusting system comprising the cutter lifting sensor, a lifting controller, the electric lifting mechanism and the like. Therefore, the system can be used for adjusting the height of the cutter in real time according to the actual condition of harvest topography. Compared with the prior art, the header of the cane harvester, provided by the invention, solves the problems that the header of the conventional cane harvester is weak in topography adaptability, low in harvesting efficiency, and higher in harvesting cost.

This invention relates to an automatic lock anti-theft lock body, including lock-frames, body panels and the main lock bolt. Main lock bolt board sets up the main lock block and the main lock bolt plate slider, with the rotary blades on the block and only retreat plectrum. Tongue and double-rotation function tongue fixation connect with the function of the tongue plate locking activities roof block access shaft; locking block with the top activities locking control slip of tongue axis next, functional tongue plate fitted with locking control of the match slip of tongue slip of tongue positioning deduction. On the control plate with the Shaft control plate, plate and the main control board tongue positioning machine was linking deduction. Tongue pull double-block through a double-axle pin tongue Next, double tongue pull with the first block on top of the second block and the top block, Top with second piece of tongue function block top plate connecting match, the first block with the top block Plectrum top mutual linking. The beneficial effect of the invention is: closed automatically lock, simple structure and easy installation; because components are relative little, transmission components are the entire plate production, it is high reliability.

A system and a method for orientation of a ring by rotation, including a cable engaging the ring which rotates about a ring axis, a motor assembly providing a first rotation reduction, and a stretcher for stretching the cable. The system has at least one proximal pulley and at least one distal pulley rotating about a pulley axis each pulley having grooves configured for receiving the cable therein. The ring is rotated by the motor assembly and the pulley assembly is configured to provide a second reduction of rotation to the ring relative to motor rotation, whereby the ring is driven via at least a double reduction of rotation relative to rotation of the motor, and the cable, the plurality of pulleys, and the ring provide a one-way mechanism.

An apparatus is disclosed for a double rotation structure mobile terminal. The mobile terminal comprising a main body having a plurality of keys for inputting information and operating functions of the mobile terminal, and a folder having a display portion. A connection member is provided having a first connection portion rotatably coupled to the main body and a second connection portion integrally formed within the first connection portion and rotatably coupled to the folder. A locking connection member installed along a side of the main body for selectively controlling rotation of the connection member.

The invention relates to the technical field of processing of braised pork with soy sauce, and discloses a marinating device for processing braised pork with soy sauce. Aiming at the problem that existing marinating materials cannot uniformly cover pork, the device comprises a base, a vertical plate is fixedly connected to one end of the top of the base, the top of the base is provided with an arcblock, a mounting plate is fixedly connected to the top of the arc block, and an adjusting rod is hinged to one end of the mounting plate; one side of the vertical plate is provided with an air cylinder, one end of the adjusting rod is hinged to an output shaft of the air cylinder, the top of the mounting plate is fixedly provided with a column, a marinating barrel is rotatably mounted on the column and fixedly sleeved with a tooth ring, a rotating shaft is rotatably mounted in the marinating barrel, the top and bottom of the rotating shaft are fixedly provided with pulling rods, one ends ofthe pulling rods are fixedly provided with pushing plates, and the pushing plates are in contact with the inner wall of the marinating barrel. According to the marinating device, through a double rotation mechanism, the uniformity of mixing the marinating materials and pork is greatly improved, the marinating quality is improved, feeding and discharging are convenient, and the marinating device iseasy to popularize.