512results about How to "Limited rotation" patented technology

The invention provides an iridium complex used as a near-infrared luminous material and OLEDs (organic light-emitting diodes) comprising the iridium complex. The general structural formula of the iridium complex is LnIrX(3-n) or [LnIrX(3-n)]<+>Z<->, wherein Ir represents a central atom of the iridium complex, both L and X are ligands of the iridium complex, Z<-> represents an anion, n is equal to 1, 2 or 3, and L is selected from an L1 ligand, an L2 ligand or an L3 ligand with the general formula represented in the specification.

The invention discloses a stripping device for an integrated circuit (IC) chip. The device comprises a mounting plate, a position regulation mechanism, a sliding table mechanism, an ejector pin mechanism and a vacuum generator. The ejector pin mechanism comprises a sleeve, a linear motor, a linear transmission mechanism, a force sensor, an ejector pin seat, an ejector pin clamping piece and an ejector pin, wherein the sleeve is arranged on a sliding table; the linear motor is arranged in the sleeve, and the control end of the linear motor is connected with the output end of an external control center; the linear transmission mechanism is arranged in the sleeve, and the lower end of the linear transmission mechanism is connected with an output shaft of the linear motor; the force sensor is arranged between the output shaft of the linear motor and the linear transmission mechanism, and the signal output end of the force sensor is connected with the input end of the external control center; the ejector pin seat is arranged at the top of the sleeve; an air hole is formed in the surface of the ejector pin seat; the ejector pin seat is connected with an air tube of the vacuum generator through the air hole; the ejector pin clamping piece is arranged in the ejector pin seat, and is connected with the upper end of the linear transmission mechanism; and the ejector pin is clamped through the ejector pin clamping piece. A closed loop force control scheme is adopted, and the chip is stripped on the premise of no damage to the chip, so that the device has the characteristics of safety, high efficiency and high stripping reliability.

The invention discloses a gyroscope and accelerometer batch calibration device which is in communication connection with a CAN (control area network) bus and a man-machine interaction display panel. The calibration device comprises a base frame, a motor supporting plate vertically arranged on the base frame, and a bracket, wherein a motor is arranged on the motor supporting plate; a rotary frame driven by the motor to rotate is hinged on the bracket; slide grooves are formed in two sides of the rotary frame; calibration flat plates are connected to the slide grooves in an inserted manner; positioning devices for positioning sensor plates are arranged on the calibration flat plates; a limit switch for controlling the rotary angle of the rotary frame is arranged on the bracket. According to the gyroscope and the accelerometer batch calibration device, the sensor plates can be calibrated in batches in one time, so that the calibration efficiency is improved. The invention further discloses a gyroscope and accelerometer batch calibration method.

The invention discloses a lifting rope swing angle detection device used for cranes, comprising at least one angle sensor (24) and a sleeve (22) coaxially sheathed outside a lifting rope (23), wherein, the angle sensor (24) is installed on the outer wall of the sleeve (22), and an anti-slide device is arranged between the sleeve (22) and a crane arm head (21) so as to prevent the sleeve (22) fromaxially rotating along the sleeve. Thus, the invention realizes the direct measurement of the lifting rope deflection angle, simplifies the structure of the detection device and ensures small occupation space; meanwhile, the anti-slide device arranged between the sleeve (22) and the crane arm head (21) prevents the crane arm head (21) from rotating along the vertical shaft of the crane arm head (21), so that the stability of the device detection coordinate system can be kept, and the detection accuracy of the device is improved. The invention also discloses a crane comprising the above lifting rope swing angle detection device.

The invention discloses a slicing device capable of adjusting the thickness. Spring sets are arranged among a plurality of cutter bases. The cutter bases located at the two ends are connected with a thickness adjusting device through pull ropes. The cutter bases are fixedly provided with blades through connecting screws, and the cutter bases are further connected with a reciprocating lifting driving device. Material base plates are arranged at the positions opposite to the blades. In the thickness adjusting device, lead screws are borne on bearing bases fixedly arranged on an adjusting base, nuts are in threaded connection with the lead screws, and the nuts are fixedly connected with the pull ropes. The lead screws are provided with adjusting heads or motors used for driving the lead screws to rotate. According to the slicing device capable of adjusting the thickness, the distance among the blades can be conveniently adjusted by arranging the thickness adjusting device, and therefore the thickness of cut materials can be adjusted.

The invention belongs to the field of ultrasonic nondestructive inspection of nuclear power station small-inner diameter tubular equipment, and discloses a nondestructive inspection ultrasonic probe universal joint pallet. The nondestructive inspection ultrasonic probe universal joint pallet is characterized in that a probe carrier and a probe pallet compose a universal structure so that a probe can rotate with the probe carrier towards all directions in the probe pallet to adapt to the change of a detected surface; through a spacing structure of the probe carrier and the probe pallet, the probe carrier can move up and down in the probe pallet along a probe pallet guide groove and can also rotate around a rotating fastening screw as a rotating shaft; and a compacting force produced by a spring is power for realizing the probe carrier universal function, and through the power, the probe carrier can automatically adapt to the change of the detected surface thereby closely clinging to the detected surface. The nondestructive inspection ultrasonic probe universal joint pallet overcomes the defect that the prior art cannot be utilized for small-diameter connection pipes and other similar tubular equipment, and improves detection accuracy and reliability.

This invention is about a kind of camera tripod legs. In this invention there is an open and close regulator between the landing leg saddle and the main block that can fast adjust the open angle of the landing legs. The ratchets on the leg seat geared into the pawls, this can control the open angle of the landing legs. The taper screws and the taper nuts in the leg interacts together to control the locking and releasing of the legs. There is no measuring regulating figure plates on the top of centre shaft, but a pulled hooker on the bottom.

The invention relates to the technical field of friction stir welding, in particular to a friction stir additive device and an additive manufacturing method. According to the friction stir additive device, hollow cavities which communicate with each other are formed in a stirring head and a knife handle, and the hollow cavity in the working end of the stirring head is provided with an opening; a wire is provided for the hollow cavities through a wire feeder; an extrusion part moves in the hollow cavities to extrude the wire, the wire is extruded into a bar to achieve friction heat production,and therefore, friction stir additive manufacturing is achieved, and continuous supply of materials during feeding can be achieved. By arranging a guide support to bear the extrusion part and providesliding support for an auxiliary plate, the auxiliary plate can be connected with a piston guide rod in a clamped mode, circumferential rotation of the piston guide rod is limited, and therefore, follow-up of a piston and the piston guide rod in the extrusion hollow cavity is avoided, and stability is improved.

The invention relates to a lifting platform claw type AUV releasing and recovering device adopted by an underwater glider. A lifting mechanism is composed of a mechanism mounting frame, a main hydraulic column, an auxiliary limiting rod set and an upper-layer working platform, an AUV recovery locking mechanism is composed of the upper-layer working platform, a steering engine, a driving movable shaft, a driven shaft, a plurality of sets of main and auxiliary claws and a position adjusting device, and the lifting mechanism and the AUV recovery locking mechanism jointly complete underwater release and recovery of the AUV. The structure is compact, and the appearance layout of an aircraft is not influenced; after the AUV release device is opened, the AUV leaves the wing body fusion type glider at any pitch angle, yaw angle and other postures and quickly enters the working state, and the working time for releasing the AUV by the AUV release device is greatly shortened. Requirements of recovery and release work on AUV postures and position precision are greatly reduced, and the motion complexity degree of the AUV in the underwater release and recovery process is reduced.

A vehicle seat frame having high strength achieved without involving an increase in the weight of the seat frame. A back center frame (23) of a seatback frame (20) is hollow and has a rectangular pillar-like shape. A connection member (32) has a circular tube section (33) having a circular outer periphery, a ceiling section (34) projecting inward from axial one end of the circular tube section (33), and a flange section (35) projecting outward from the other axial end of the circular tube section (33). The ceiling section (34) of the connection member (32) is secured to the inner surface of one side plate section (23a) of the back center frame (23), that surface of the flange section (35) which is located on the circular tube section (33) side is secured to the outer surface of the other side plate section (23b) of the back center frame (23), and that surface of the flange section (35) which is located on the opposite side of the circular tube section (33) is connected to a bracket (14) with a recliner (30) in between.

The invention provides a sheet preload positioning and clamping device which pertains to the field of the machinery and automobile manufacture technology. The device consists substantially of a substrate (1), a clamping block (2), a positioning block (3), a preload slider (4), a fastening bolt (5), a fastening nut (6), a preload spring (9) and a preload screw (10). The positioning block (3) is a two-point positioning structure and arranged on the substrate (1). Under the force of the preload spring (9), the preload screw (10) drives the preload slider (4) to ensure a test piece to be positioned on the substrate (1). Under the force of the fastening nut (6), the fastening bolt (5) drives the clamping block (2) to clamp the test piece. The lower end of the substrate (1) is provided with a boss holding end, which can be clamped on the testing machine conveniently. No fixture needs to be dismounted throughout the test processes. The invention can ensure a spot welding test piece to maintain the same clamping position during a plurality of times of clamping and realize the clamping of the test piece.

The invention discloses an ironing board component and a garment steamer. The ironing board component comprises an ironing board, a support rod component and a support adjusting component. One surfaceof the ironing board is at least provided with a first hinge portion and a second hinge portion. The support rod component is hinged with the first hinge portion. The support adjusting component comprises a first member and a second member. One end of the first member is hinged with the second hinge portion to form a first hinge point. One end of the second member is hinged with the support rod component to form a second hinge point. The second member is in sliding fit with the first member. One of the first member and the second member is provided with a plurality of clamping grooves linearly arranged at intervals. The other member is provided with at least one limiting block capable of being fittingly clamped into the clamping grooves. The ironing board component and the garment steamerhave the advantages that when the limiting blocks are clamped into the clamping grooves, the length between the first hinge point and the second hinge point is unchanged, and rotation of the ironingboard is limited; when the limiting blocks are driven to be separated from the clamping grooves by external force, the length between the first hinge point and the second hinge point is adjustable, and accordingly, the angle of the ironing board is adjusted.

The invention discloses an installation device for an offshore wind generating set. The installation device comprises a positioning mechanism, a fan, a six-dimensional parallel mechanism, a tower pedestal platform and a crane ship; the six-dimensional parallel mechanism is fixed on the tower pedestal platform through the positioning mechanism; the fan penetrates through the six-dimensional parallel mechanism and is fixed through the six-dimensional parallel mechanism; and the crane ship is connected with a fixing mechanism. The six-dimensional parallel mechanism with three working units is adopted in the installation device and does not have a working dead angle, so that deflection of positive deviation and negative deviation of a fan tower cylinder can be realized, and bolt holes in a bolt hole cylinder tower pedestal on fan tower cylinder flanges are quickly aligned. The six-dimensional parallel mechanism can play a role in buffering when the fan tower cylinder declines, so that collision impact between the fan tower cylinder and the tower pedestal is reduced. The six-dimensional parallel mechanism has a series of advantages of high rigidity, high speed, high bearing capacity, small errors, high precision, good power performance and the like and is easy to control, so that positioning and buffering integration of the fan tower cylinder can be realized, and the manufacturing cost is greatly reduced.

A damping-rigidness-controllable double-freedom-degree vibration active control platform comprises a cross-shaped beam frame and a square base which are connected through a flexible hinge. A cross-shaped beam of the cross-shaped beam frame is distributed in the diagonal directions of the square base. A structure column is arranged at the center of the cross-shaped beam frame. Sensors and actuators are connected between the lower portions of the diagonal top ends of the cross-shaped beam frame and the square base respectively. Four limiting columns are arranged between the cross-shaped beam of the cross-shaped beam frame and the square base respectively. Prearranged gaps are reserved between the limiting columns and the cross-shaped beam frame. Four balancing weights are fixed on the lower portion of the cross-shaped beam frame between the sensors or the actuators and the limiting columns respectively. Twisting limiting spring pieces are arranged at the symmetrical positions on the lower portion of the cross-shaped beam frame between the limiting columns and the flexible hinge. The electromagnetic type sensors and the electric-damping electric-rigidness actuators are used to achieve detecting of angular speed and actuating, the flexible hinge and the spring piece with changeable thickness are combined to achieve controllable damping and rigidness in a quantifying mode, and double-freedom-degree vibration active control in the x direction and the y direction of the structure is achieved.

The invention discloses a vocal-assisted breath practice device comprising a main pipe body and a blow nozzle. The front surface wall of an outer side of the main pipe body is provided with an LED lamp, and a bottom side of the main pipe body is connected to the blow nozzle through a branch pipe. A generator is fixedly connected to the top center of the main pipe body, a bottom of the generator isconnected to an accelerator through a transmission shaft, and a bottom of the accelerator is fixedly connected to a rotating shaft located on a center line in the main pipe body. According to the vocal-assisted breath practice device, a blade can be driven to rotate through airflow, the rotating shaft is driven to rotate through the blade, finally a rotor of the generator rotates and cuts a magnetic induction line to generate an alternating current, the alternating current is connected to an LED lamp, so that the LED lamp flashes and shines, the blowing strength of a user can be intuitively reflected through a flashing speed and brightness of the LED lamp, the enthusiasm of user training can be effectively improved by the structure, the training is intuitive and full of fun, and the training effect is effectively improved.

The invention discloses an optical fiber connector capable of accurate positioning, which comprises a connector socket and a connector plug, wherein the connector socket comprises a connector socket base, a locking wheel pressure ring, a locking wheel and an operating handle, and the connector socket base is fixed to an optical bottom plate of a confocal imaging system in a rigid manner; the locking wheel pressure ring, the locking wheel and the operating handle form a locking and limiting mechanism of the connector socket; the head part of the connector plug is provided with an axial positioning head, a rotary positioning head is arranged behind the axial positioning head, an optical fiber bundle passes through a hollow hole, and the optical fiber bundle and the connector plug are fixed to each other after being leveled; and the hollow hole faces just to a circular light passing hole when connector plug is inserted to the bottom part of a positioning groove of the connector socket base, and focused laser is injected into the optical fiber bundle through the circular light passing hole. The optical fiber connector adds a rotary positioning function, limits the optical fiber to rotate around the axis, achieves positioning in the rotational direction, applies a pressure on the connector through a spring, ensures stable and reliable locking of the connector, and can control the pressure.

The invention belongs to the field of solar panels and particularly relates to a solar panel deployment limiting mechanism. The solar panel deployment limiting mechanism comprises a rotating shaft, afixed hinge and a moving hinge. One side of the fixed hinge and one side of the moving hinge are provided with shaft holes respectively, and the rotating shaft penetrates the shaft holes in one side of the fixed hinge and the shaft holes in one side of the moving hinge to be connected with the fixed hinge and the moving hinge. Torsional springs sleeve the rotating shaft, a torsional spring arm atone end of each torsional spring is connected with the moving hinge while a torsional spring arm at the other end of each torsional spring is a free end, each free end is abutted against the fixed hinge after the moving hinge rotates around the rotating shaft to expand, and the fixed hinge and the moving hinge are provided with limiting bosses for limiting after deployment. The solar panel deployment limiting mechanism is easy in assembly, low in component quantity, simple in structure, light in weight, small in size and high in reliability.

The invention discloses a gas-liquid distributor for a fluidized bed reactor. The gas-liquid distributor mainly comprises a center pipe, a bell cap, a floating valve and a valve base, wherein a material outlet is formed in the pipe wall at the end part of the upper section of the center pipe, a material inlet is formed in the lower section of the center pipe, the bell cap is a cover-shaped object which is opened in one end, and covers the end part of the upper section of the center pipe, the blind end of the bell cap is fixedly connected with the end part of the upper section of the center pipe; the valve base is a ring-shaped structure with a valve base hole in the center, the valve base is arranged below the material outlet in the center pipe; the floating valve is of a circular plate-shaped structure, covers above the valve base and can move up and down along the axial direction of the center pipe; a Venturi throat is arranged in the center pipe, which is close to the valve base, at the middle section of the center pipe. The gas-liquid distributor can ensure that gas is crushed into continuous micro-bubbles in a liquid, and can effectively solve or relieve the problem of instable gas-liquid pressure or countercurrent blockage of a material carrying a catalyst when a gas-feed feed is suddenly interrupted; meanwhile, a flowing dead zone inside the distributor is eliminated, and the pressure drop is relatively small.

The invention discloses a preparation method of a high-magnetic-energy-product and high-coercivity sintered neodymium iron boron magnet; the preparation method comprises the following steps of preparing materials according to the design ingredients, performing smelting on the ingredients, carrying out rapid hardening and casting, and obtaining a rapid hardened cast sheet; performing hydrogen crushing, a disproportionation reaction and airflow grinding and powder making on the neodymium-iron-boron cast sheet to obtain neodymium-iron-boron fine powder of 0.5-10[mu]m; adopting a thermal resistance evaporation deposition method to enable Dy/Tb particles and Pr/Nd particle element particles to be deposited on neodymium-iron-boron fine powder in a step-by-step manner or synchronously; and performing magnetic field orientation compression molding, cold isostatic pressing, vacuum sintering and heat treatment on the neodymium-iron-boron fine powder coated with Dy/Tb particles and Pr/Nd particles to finally obtain the high-magnetic-energy-product and high-coercivity sintered neodymium iron boron magnet. By coating the surface of the neodymium-iron-boron magnetic powder with the Pr/Nd and Dy/Tb thin layer, the volume ratio of the ferromagnetic phase is effectively increased, the rare-earth-rich phase distribution of the grain boundary is improved, the utilization rate of heavy rare earthelements is increased, and the magnetic energy product and the coercive force of the magnet are remarkably improved.

The invention belongs to the technical field of materials, and particularly relates to a supramolecular material, a preparation method and application thereof. The supramolecular material comprises a unit structure as shown in a formula (I) and/or a formula (II), and is cage-shaped, wherein in the formula, R is a hydrogen atom, an ether chain, an alkyl chain or a polyaromatic hydrocarbon chain, and M is a transition metal ion. The supramolecular material provided by the invention has an octahedral cage structure, is stable in structure, has aggregation-induced emission performance, and is wide in application range; and the preparation method of the supramolecular material is simple, mild in reaction condition and beneficial to large-scale industrialization.

The invention discloses a multi-working-condition torsion shearing property testing device and method of a pile or anchor and rock-soil body interface. The multi-working-condition torsion shearing property testing device comprises a test sample, a confining pressure and test sample fixing device, a torque applying device, a force transmission device and a measurement device. A motor, a gear and agear rack mechanism are used for realizing instantaneous torsion shearing; the motor, an eccentric wheel and a rocking bar mechanism are used for realizing circulating torsion shearing; a gear rack weight is loaded to generate a constant torque and realize creep torsion shearing; a gear rack is provided with a displacement reference surface and a change condition of a torsion angle of the pile oranchor and rock-soil body interface is monitored through monitoring the horizontal displacement of the gear rack. The testing device provided by the invention is clear in principle and simple in structure; the preparation of the test sample and separation of a test are realized and the testing efficiency is improved; the testing device can be used for testing the instantaneous torsion shearing property, circulating torsion shearing property and torsion shearing creep property of the pile or anchor and rock-soil body interface, so that the instantaneous and long-period interface anti-torsion shearing strength of a pile or an anchor is determined.

The invention discloses an automobile modular framework assembly. The assembly comprises a first beam, a second beam, a third beam, a fourth beam, a first L-shaped connecting piece, a second L-shaped connecting piece, a first depression bar, a second depression bar, a core bar, a first bolt, a second bolt and a nut; the left and right side faces of the first beam, the second beam and the third beam are all provided with first T-shaped grooves extending in the lengthwise direction, the upper and lower side faces of the first beam are each provided with two second T-shaped grooves extending in the lengthwise direction, the upper and lower side faces of the second beam are each provided with a second T-shaped groove extending in the lengthwise direction, and the upper and lower side faces of the third beam are planes; the two sides of the fourth beam are each provided with a first T-shaped groove extending in the lengthwise direction, and the part between the two side faces of the fourth beam is in an arc shape. When the automobile modular framework assembly is applied to automobile framework assembling, the varieties of needed components are few, the assembling speed is high, the production efficiency is high, all the components can be produced in a standardized mode, the cost is low, the strength is high, maintenance is convenient, and the automobile modular framework assembly has a very wide market prospect.

The invention discloses a solar-energy electric board fixing device based on new energy. The device comprises a fixing seat. The internal portion of the fixing seat is provided with a cavity. The inner top wall of the cavity is fixedly inlaid with a first bearing. The inner bottom wall of the cavity is fixedly connected to a positive reversal motor. The output terminal of the positive reversal motor penetrates the first bearing and is extended to the upper portion of the fixing seat. By using the solar-energy electric board fixing device based on the new energy, through arranging a second slipring, the stability of the second slip ring can be effectively maintained and the second slip ring is prevented from randomly swinging during a moving process. Through arranging a deceleration motor,a rotating disc, a first slide rod, a first slip ring, a fixing column, an electric push rod and a second slide rod are cooperated and used so that the inclination angle of a fixing plate is effectively adjusted through the telescoping length of the electric push rod. Simultaneously, through the rotation of the rotating disc, the inclination direction of the fixing plate is adjusted so that a problem that an existing solar-energy electric board fixing device based on the new energy is not easy to adjust is solved.