256results about How to "Large swing" patented technology

A head gimbal assembly includes a slider, a rotatable micro-actuator and a suspension to load the slider and the rotatable micro-actuator. The rotatable micro-actuator horizontally rotates the slider with a central portion of the slider as an axis, which includes a bottom plate to be connected with the suspension, two arm plates symmetrically disposed on the bottom plate with a central portion of the bottom plate as symmetry point and at least one piezoelectric pieces to be connected with the arm plates. Selectively, the amount of the arm plates can be four and four piezoelectric pieces to be connected with the four arm plates, respectively.

The invention discloses a clamping mechanism which comprises a shell and an oil cylinder installed in the shell, wherein clamping blocks are distributed in the front part of the shell in bilateral symmetry; and the inner side surfaces of the front half parts of the clamping blocks are inner concave surfaces. The clamping mechanism is characterized in that a cylinder barrel of the oil cylinder is centered at the rear part of the shell; the front end of a piston rod of the oil cylinder is articulated with a connecting plate; the left part and the right part of the connecting plate are respectively articulated with the rear ends of the clamping blocks; the front part of at least one cover plate of the shell is symmetrically provided with guide grooves left and right; guide pins are arranged in the middle parts of the two clamping blocks and inserted into the guide grooves; fixed blocks are clamped and fixed in the middle parts of the front ends of the two cover plates, and the normal lineof the surfaces of the front parts of the inner concave surfaces of the two clamping blocks are inclined to the directions of the fixed blocks. The invention has simple structure, high strength and large clamping force and can be suitable for different pipe columns with the external diameter range of 3.5-9.75 inches without replacing the clamping mechanism, and the clamping mechanism can not interfere with the adjacent pipe column during working.

The invention belongs to nondestructive detection technology for magnetic flux leakage of a steel wire rope, relates to an on-line magnetic flux leakage detection probe for the steel wire rope. The on-line magnetic flux leakage detection probe comprises an open-close magnetic flux leakage detection assembly and a floating track mechanism. The floating track mechanism comprises a pedestal, a change-over base, a first linear guide rail, an installation plate, and air cylinder and a second linear guide rail. The magnetic flux leakage detection assembly realizes real-time tracking for the postures of the steel wire rope through the floating track mechanism. The floating track mechanism can realize cohesion detection and opening restoration for the steel wire rope. The detection probe provided by the invention integrates the functions of magnetization and signal output, has the advantages of small size, light weight, strong universality, low cost and the like, and can be suitable for some to-be-detected components with large swing amplitude and fast speed change. The probe is in a split structure but can form a through type probe during a work process, has the effect close to that of through type solenoid coil magnetization, and particularly can realize the nondestructive detection requirements of components such as end-free or two-end anchorages and the like under the conditions of high speed and large swing.

An electronic device is provided. The electronic device includes a housing that includes a slit, a first antenna element extending along a portion of the housing, a second antenna element spaced apart from at least a portion of the first antenna element by the slit and extends along another portion of the housing, and a wireless communication circuit positioned inside the housing and electrically connected to the first antenna element. The first antenna element is electrically connected to the second antenna element.

The invention provides a robot fish and a fishtail working principle thereof, and relates to the field of mechanical fish. The robot fish comprises a fish main body and a fishtail, wherein the fishtail comprises a plurality of first frame bodies which are hinged sequentially to form a fishtail main body; one end of the fishtail main body is hinged to a second frame body serving as a tail fin; the other end of the fishtail main body is hinged to a third frame body; a mounting groove is formed in the third frame body; the robot fish further comprises a connecting part; the middle part of the connecting part is hinged to the third frame body; an adjustable eccentric wheel device which allows the third frame body to swing horizontally in the horizontal direction relative to the connecting part is arranged at one end, extending to the mounting groove, of the connecting part, and the other end of the connecting part is connected to the fish main body; a driver for driving the adjustable eccentric wheel device is arranged in the fish main body. The robot fish has the benefits that complete fishtail-type swinging of the fishtail can be realized, the robot fish can swim freely in water, and swimming of the robot fish can be more real.

A reference buffer circuit provides a reference voltage at an output node and comprises a closed-loop branch comprising an amplifier and first and second MOS transistors and an open-loop branch comprising a third MOS transistor. A positive input terminal of the amplifier receives an input voltage. A gate of the first MOS transistor is coupled to the output terminal of the amplifier, and a source is coupled to a negative input terminal of the amplifier. A gate of the second MOS transistor is coupled to the drain of the first MOS transistor, a source is coupled to a first voltage source, and a drain is coupled to the source of the first MOS transistor. A gate of the third MOS transistor is coupled to the output terminal of the amplifier, and a source is coupled to the output node.

A surface-mount type crystal unit includes a package body which is made of a laminated ceramic and has a bottom wall layer and a frame wall formed on the bottom wall layer, the frame wall layer having an opening. In the package body, a concavity is constructed of the opening. The crystal unit further includes a pair of crystal holding terminals formed on one end part of the inner bottom surface of a concavity which is a top face of the bottom wall layer; a crystal blank held in the concavity by fixing the both sides of the one end part of the crystal blank to the pair of crystal holding terminals; a thermistor; and a cover which closes the concavity. The thermistor is arranged in a hollow part arranged in the top face of the bottom wall layer in the concavity.

The invention discloses an anticorrosion assemblage supporting mechanism system used for a power supply system and having a tilting early warning function. The system comprises a tower head, a tower body and tower feet, and further comprises a wireless tilt angle sensor, a temperature sensor, a video detector, a solar assembly, a power supply battery, a power supply battery voltage transformation module, a data processor, a date counter, a wireless transmission module, a wind force sensor and settlement monitors, wherein the wireless tilt angle sensor, the temperature sensor, the video detector, the solar assembly, the power supply battery, the power supply battery voltage transformation module, the data processor and the date counter are arranged on the tower body; the wireless transmission module is used for being in communication connection with a monitoring center; the wind force sensor is arranged on the tower head; and the settlement monitors are arranged on the parts, extending into a tower foundation, of the tower feet. Transverse force can be released through reinforcing ribs, and the strength of a supporting mechanism in the longitudinal direction is reinforced. The reinforcing ribs form included angles with the horizontal plane and can supply part of transverse supporting force and ensure longitudinal rigidity. In addition, in the swing process of the supporting mechanism, the reinforcing ribs arranged in a rhombus shape has certain resilience force, and the supporting mechanism can be kept in a fixed gesture and is prevented from swinging in large amplitude.

A pickup device which, focusing a ray bundle on a track of a recording surface of an optical recording medium to form a light spot, comprises a detection optical system including a photo detector to receive return light reflected from the light spot via an objective lens and perform photoelectric conversion. The photo detector has at least two photoreceptor sections positioned axis-symmetrical with respect to a detection-side division line extending through an optical axis of the return light and parallel to the track. A dividing element placed in an optical path between the photo detector and the objective lens includes at least two inner divided areas positioned axis-symmetrical with respect to a deflection-side division line extending through the optical axis of the return light and parallel to the track, and at least two outer divided areas positioned sandwiching the inner divided areas and axis-symmetrical with respect to the deflection-side division line. The inner divided areas are formed such that parts of a light beam from the other region than overlap regions, divided axis-symmetrically along the deflection-side division line, are exchanged in position across the detection-side division line and directed to the photoreceptor sections of the photo detector so as to be axis-symmetrical with respect to the detection-side division line.

The invention aims at providing a permanent magnetizer and a magnetic flux leakage testing probe formed by the permanent magnetizer. The permanent magnetizer comprises a first annular permanent magnet body, a second annular permanent magnet body and an annular armature, wherein the annular armature is clamped between the first annular permanent magnet body and the second annular permanent magnet body, and the annular armature, the first annular permanent magnet body and the second annular permanent magnet body are coaxial and are jointed to form a through type permanent magnetizer. The magnetic flux leakage testing probe formed by the through type permanent magnetizer further comprises a shoe-shaped probe which is arranged in an inner cavity of the armature coaxially and is detachably connected with the armature. The magnetic flux leakage testing probe disclosed by the invention integrates magnetization and signal output functions, has the advantages of small size, light weight, strong universality, low cost and the like, and can be suitable for the characteristics of components to be tested on the large swing amplitude and the high change speed; and the probe has a split structure, can also form a through type probe during operation, also has the effect close to the magnetization effect of a through type solenoid coil, and especially can realize the nondestructive testing requirements of non-end or two-end anchored components under the conditions of high speed and large swinging amplitude.

The invention discloses a deviation-correcting unit used for correction when a membrane band deviates. The deviation-correcting unit comprises a guide roller assembly, a deviation-correcting actuator and slide rail assemblies. Each slide rail assembly comprises a slide block and a slide rail in sliding fit. The guide roller assembly is rotatably connected with the slide blocks. The deviation-correcting actuator is fixedly connected with the slide blocks and drives the slide blocks to shift so as to drive the guide roller assembly to swing. The invention further provides a reverse osmosis membrane production device adopting the deviation-correcting unit. The deviation-correcting unit and the reverse osmosis membrane production device have the advantages that the deviation-correcting unit is simple in structure and stable to operate and has a good deviation-correcting effect for the deviated membrane band, the membrane band is stressed uniformly after deviation-correcting, and therefore the quality of the membrane band is guaranteed.

The invention provides a supporting structure and an engineering mechanism. The supporting structure comprises a supporting frame, a first supporting leg, a second supporting leg, a first hydraulic cylinder and a second hydraulic cylinder, wherein the supporting frame is connected with an engineering mechanism body; the first supporting leg and the second supporting leg are transversally crossed, one end of the first supporting leg is hinged with one end of the second supporting leg through a first pin roll installed on the supporting frame; one end of the first hydraulic cylinder is connected with the supporting frame, and the other end of the first hydraulic cylinder is connected with the first supporting leg; and one end of the second hydraulic cylinder is connected with the supporting frame, and the other end of the second hydraulic cylinder is connected with the second supporting leg. The supporting structure ensures that the supporting during working is more stable, the length of a mechanism body cannot be increased, and the supporting structure is simple and easy to layout.

The invention discloses an electromagnetic rocking chair. The electromagnetic rocking chair comprises a fixed portion and a movable portion, wherein the movable portion moves relative to the fixed portion; the fixed portion is provided with more than two fixed magnets; the fixed magnets are electromagnets of which magnetic pole directions can be respectively controlled; and the movable portion is provided with moving magnets matched with the fixed magnets. The fixed magnets are electrified, so that the magnetic pole directions of the fixed magnets are fixed, the upper ends of the fixed magnets are S poles, and the lower ends of the fixed magnets are N poles. The upper ends of the moving magnets are N poles, and the lower ends of the moving magnets are S poles. When the moving magnets move to positions right above the fixed magnets, the fixed magnets are electrified to generate magnetic force, repelling force is generated due to homopolar repulsion, and the repelling force and moving inertia of the moving magnets form resultant force which pushes the rocking chair to move smoothly.

The invention provides a vortex-induced vibration and lift force hybrid type flow power generating device which comprises a vibration system in incoming flow, a synchronous belt system, a vibration-rotating transition system, a power generation system and a support structure, wherein the synchronous belt system transmits motion energy of a vibration system to a water level, the vibration-rotating transition system translates reciprocating vibration to single-direction vibration. The vibration system is composed of a vibration body and a rocker arm, and an axis of the vibration body and the rocker arm is perpendicular to the incoming flow direction. The synchronous belt system is composed of a large synchronous belt wheel, two small synchronous belt wheels and a synchronous belt, the large synchronous belt wheel is coaxial to a rotary shaft of the rocker arm and conducts reciprocating motion with the rocker arm, and the two small synchronous belt wheels and the synchronous belt are arranged on a water power generation platform. The mode that a single-direction clutch and a gearbox are combined is adopted, reciprocating vibration is translated into the single-direction rotation, and then the single rotation which is opposite in rotation direction is combined to be a single-direction rotation. The vortex-induced vibration and lift force hybrid type flow power generating device has the advantages of being low in starting flow velocity, wide in applicable flow velocity interval region, large in amplitude of swing, and the like. Meanwhile, the vortex-induced vibration and lift force hybrid type flow power generating device is applied to working in water flow of various flow velocities.

The invention discloses a strand oscillator for a hose pipe winder and relates to the technical field of winding equipment. The strand oscillator comprises a bracket and an electronic control device, wherein the bracket is mounted on a winder rack; one side of the bracket is provided with two limit sensors at opposite positions; the bracket is provided with a wiring lead screw driven by a power device; the wiring lead screw is provided with a sliding seat capable of reciprocating along the wiring lead screw according to signals output by the limit sensors; and the sliding seat is provided with a guide wheel and a wiring assembly which is used for distributing hose pipes on a winding roll on the winder uniformly. With the adoption of the strand oscillator for the hose pipe winder, the production efficiency of the hose pipe winder can be improved, the adjacent hose pipes are effectively prevented from adhering together, the automation degree is high, the labor intensity of workers is reduced, the production cost is lowered and the economic benefit of hose pipe producing enterprises is improved.

The invention discloses a solar anti-corrosion high-voltage line iron tower monitoring system of a power supply system. The solar anti-corrosion high-voltage line iron tower monitoring system comprises a tower head, a tower body and tower feet and further comprises a wireless tilt angle sensor, a temperature sensor, a video detector, a video control circuit, a solar assembly, a power supply battery, an anti-thunder module, a data processor, a date counter, a wireless transmission module which are arranged on the tower body, a wind power sensor arranged on the tower head and settlement monitors arranged on the portions, stretching into a concrete base layer, of the tower feet, the wireless transmission module is used for being connected with a monitoring center in a communication mode, and reinforcing ribs on the tower head can release transverse force and enhance the strength in the longitudinal direction of the iron power. The reinforcing ribs are arranged at an angle relative to the horizontal plane and can bear a part of transverse supporting force and ensure longitudinal rigidity. In the swing process of the iron tower, the reinforcing ribs arranged in a rhombus shape have certain resilience force, and the iron tower can be kept in a fixed posture and prevented from swinging at too large amplitude.

The invention relates to an upper chord inspection vehicle which comprises a horizontal truss, walking mechanisms and vertical trusses. Two groups of vertical trusses are symmetrically arranged at two ends of the horizontal truss, and two groups of walking mechanisms are symmetrically arranged at two ends of the horizontal truss. Every group of walking mechanism comprises a main supporting mechanism, a walking driving mechanism, a walking beam, an addition part catching device and a guiding supporting wheel set for walking on a bridge, wherein the main supporting mechanism is rotatably connected with the middle of the walking driving mechanism through a horizontal truss supporting shaft, the guiding supporting wheel set is arranged below the walking beam, and the two groups of addition part catching devices are arranged below the walking beam. The upper chord inspection vehicle has the advantages that the technical problem that an existing bridge detection operation vehicle is not suitable for walking on an upper chord above the wave-shaped bridge and is simultaneously poor in stability is solved, the influence on bridge deck traffic is avoided simultaneously, and a detection path can cover a whole bridge body.

The invention discloses movable material mixing equipment for building. The movable material mixing equipment comprises a cylinder body, a shell, a motor and a feeding opening. Multiple moving wheelsare fixedly installed on the bottom of the cylinder body. A horizontal connecting rod is fixedly connected to a piston rod of a pneumatic cylinder. The connecting rod extends into the tail end in theshell and is fixedly connected with the cylinder body. A horizontal material guide hopper is coaxially fixed to a transmission shaft. A horizontal dispersing disc is fixed to the lower end of the material guide hopper. A supporting screen plate is provided with a screen cylinder which is arranged on the outer side of a main stirring blade in a sleeving manner. A plurality of connecting springs arefixedly connected to the left side and the right side of the inner wall of the screen cylinder. According to the equipment, by means of the arranged material guide plate and the rotating dispersing disc, materials entering the equipment are spread in the cylinder body uniformly, the materials make contact with materials in the cylinder body uniformly, and the materials are stirred and mixed conveniently and fast. The cylinder body moving left and right enables the materials in the cylinder body to waggle left and right, the materials in the cylinder body can move conveniently in the horizontal direction, and the stirring dead angle is avoided.

The invention discloses a bionic crawling robot based on an electromagnetic driving principle. The bionic crawling robot based on the electromagnetic driving principle comprises a bottom plate structure, side plate structures, top plate structures, an external extending beam structure, supporting legs, a permanent magnet, a coil with an iron core and a supporting plate structure; the bottom platestructure, the side plate structures and the top plate structures are connected and fixed in an inserted manner to provide positioning and supporting for the whole structure; the external extending beam structure consists of two parallel SMA wires and is positioned by means of small holes in the side plate structures; the supporting legs comprise one pair of front legs and one pair of rear legs; the front legs and the rear legs are correspondingly bonded on the two sides of the external extending beam structure and the side plate structures; the permanent magnet is fixed at the middle part ofan external extending beam and is opposite to the coil with the iron core, which is bound on the supporting plate structure. After alternating current is applied to the coil, the permanent magnet drives the external extending beam structure to vibrate under an effect of an alternating electromagnetic force so that the front legs can swing to drive the whole mechanism to advance. The bionic crawling robot based on the electromagnetic driving principle has the advantages of simple structure, light weight, easy micromation and high moving speed.

The invention relates to an automatic glue dispensing machine applicable to irregular products. The automatic glue dispensing machine comprises a machine frame. A power distribution control cabinet and an irregular product glue dispensing mechanism are arranged on the machine frame. An irregular product carrying mechanism matched with the irregular product glue dispensing mechanism is arranged below the irregular product glue dispensing mechanism. The irregular product carrying mechanism comprises an irregular product carrying device and an irregular product movable device connected with the irregular product carrying device. The irregular product carrying device comprises a swing plate which is arranged on the irregular product movable device obliquely. An installation rotary shaft is arranged on the swing plate and connected with a rotation motor arranged on the swing plate through a rotary belt and a synchronous wheel. The installation rotary shaft is fixedly connected with an irregular product carrier. According to the automatic glue dispensing machine, the installation rotary shaft is arranged on the oblique swing plate, the irregular product carrier is installed on the installation rotary shaft arranged on the swing plate, then, the rotation motor can drive the irregular product carrier to rotate, and accordingly multi-surface glue dispensing of the irregular multi-surface products can be achieved.

The invention belongs to the technical field of copper craft production, and particularly relates to a welding device used for copper craft production. According to the solution adopted to solve the problem of welding defects caused by mismatching of the connected portions of two parts during vertical welding of sleeve parts with the same inner diameter and different outer diameters, the welding device comprises a base which is open upwards and is of groove-shaped structure, wherein a C-shaped steel sliding rail which is open upwards is fixed to the middle of the bottom of the base, a baffle is fixed to the middle of the groove bottom of the C-shaped steel sliding rail, a bidirectional screw rod is rotatably connected to the middle of the baffle, and the two ends of the bidirectional screwrod are sleeved with sliding blocks respectively. When the welding device used for copper craft production is used for welding a vertical weld tube, extension rods of hydraulic ejection rods can be controlled to extend to enable two arc clamping plates to move towards the middle to generate an oblique downward thrust, and at this moment, a downward force component is generated to tightly press the vertical weld tube on a tube holder, so that welds are minimized, and the welding quality is improved.

The invention discloses a guide device for an elevator balance compensation chain. The guide device comprises the balance compensation chain (1) and a counterweight side guide device body (4). One end of the balance compensation chain (1) is fixed to the bottom of a counterweight frame (100), and the other end of the balance compensation chain (1) is fixed to the bottom of a car frame (200). The counterweight side guide device body (4) is fixed below the counterweight frame (100). The guide device for the elevator balance compensation chain further comprises a car side guide device body (8) which is fixed below the car frame (200). The balance compensation chain (1) is sequentially wound around the counterweight side guide device body (4) and the car side guide device body (8). According to the guide device for the elevator balance compensation chain, the car side guide device body and the counterweight side guide device body are used for guiding and limiting the two sides of the balance compensation chain together, the swing amplitude of the balance compensation chain during high-speed running of a car is effectively reduced, and therefore the balance compensation chain runs more stably and more safely.