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962 results about "Balance wheel" patented technology
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A balance wheel, or balance, is the timekeeping device used in mechanical watches and some clocks, analogous to the pendulum in a pendulum clock. It is a weighted wheel that rotates back and forth, being returned toward its center position by a spiral torsion spring, the balance spring or hairspring. It is driven by the escapement, which transforms the rotating motion of the watch gear train into impulses delivered to the balance wheel. Each swing of the wheel (called a 'tick' or 'beat') allows the gear train to advance a set amount, moving the hands forward. The balance wheel and hairspring together form a harmonic oscillator, which due to resonance oscillates preferentially at a certain rate, its resonant frequency or 'beat', and resists oscillating at other rates. The combination of the mass of the balance wheel and the elasticity of the spring keep the time between each oscillation or ‘tick’ very constant, accounting for its nearly universal use as the timekeeper in mechanical watches to the present. From its invention in the 14th century until tuning fork and quartz movements became available in the 1960s, virtually every portable timekeeping device used some form of balance wheel.
Balance wheel, balance spring and other components and assemblies for a mechanical oscillator system and methods of manufacture
The application discloses a method of making a balance spring (100) from continuous fibres or ceramic by winding them around a cylindrical former (90), interspaced with a releasing agent (110). Also disclosed is a method of making a balance spring, preferably of a ceramic material (60), by applying it to a rotating former (70) mandrel or plate and subsequently heat treating. Balance wheels (30) having a moment of inertia which decreases with a rise in temperature due to a special arrangement of components (8, 9, 10) having different coefficients of thermal expansion are also disclosed. A mechanical oscillator system comprising a non-magnetic ceramic or continuous fibre balance spring (50) and a non-magnetic balance wheel (30) formed of a material having a coefficient of thermal expansion of less than 6×10−6K−1 and having a plurality of non-magnetic poising or timing appendages (5) is also disclosed.
Owner:CARBONTIME
Thermally compensating balance wheel
InactiveUS20100034057A1Reduce resistanceGood precisionFrequency stabilisation mechanismMemory effectEngineering
A balance wheel having a thermally adjustable moment of inertia is described. In one aspect, the balance wheel includes radially movable compensation portions formed of shape memory material exhibiting a two-way memory effect. The radius of gyration of the balance wheel is therefore adjustable with temperature to compensate for thermoelastic effects in a balance spring attached to the balance wheel. In another aspect, a thermally stable balance wheel includes dynamically adjusting appendages whose expansion or contraction with temperature relative to the balance wheel cause change in its moment of inertia. The invention can compensate for both ‘normal’ and ‘abnormal’ thermoelastic spring behaviour.
Owner:CARBONTIME
Controller for a clockwork mechanism, and corresponding method
ActiveUS20130051191A1Change is minimalReduce energy lossFrequency stabilisation mechanismElectric windingCapacitorBalance wheel
Controller for a clockwork mechanism, having the following components: a balance wheel; a piezoelectric helical spring (20); an electronic circuit for coordinating the stiffness of the piezoelectric helical spring (20); characterized in that the electronic circuit has a plurality of capacitors which can be switched individually (222, 224, 226, 228).
Owner:TEAM SMARTFISH
Friction torque testing device for rolling bearing at low temperature
InactiveCN102175369ASimple structureEasy to operateMachine bearings testingWork measurementSet screwTest performance
The invention relates to a friction torque testing device for a rolling bearing at low temperature. The friction torque testing device comprises a support and a pair of objective rolling bearings of same type, wherein the pair of objective rolling bearings of same type is mounted at two ends of a shaft so as to be placed in a sleeve, two ends of the sleeve are respectively located by a left end cover and a right end cover so as to be fixed on the support, and a temperature sensor is placed in a part of the sleeve near a drilling part of the objective rolling bearing so as to test the temperature variation of the bearing; an extending end of the shaft fixes a balance wheel through two set screws, two ends of each set screw are provided with two balance nuts to fine adjust the eccentricity of the balance wheel; a string comes around the balance wheel, and two trays are respectively hung on the two ends of the string; when weights are placed in the trays, a starting friction torque of the objective rolling bearing can be tested as soon as the balance wheel turns. The friction torque testing device for the rolling bearing at low temperature can effectively control certain pre-tightening force to test performance indexes of the friction torque of the bearing with different lubricants under different radial loads at low temperature; and the friction torque testing device is simple in structure, low in manufacturing cost and convenient to operate, and can repeatedly test the friction torque at harsh low temperature.
Owner:上海博高科技有限公司
Smart balance wheel with bolt-shaft structure
InactiveUS20170183053A1Improve securityEasy to operateCharging stationsElectric propulsion mountingSafety controlEngineering
The present invention discloses a smart balance wheel with a bolt-shaft structure, comprising a fixedly connected bearing and shaft system, a balance control and drive system, a safety control and prompt system and a charging system. The fixedly connected bearing and shaft system comprises a main frame and a shaft system. The main frame comprises a left frame and a right frame symmetric to each other and rotating relative to each other. The shaft system passes through the left and right frames to realize relative rotation. The balance control and drive system is located under the fixedly connected bearing and shaft system. The present invention uses a bolt-shaft structure and a closed dustproof structure, realizes fixing of the left and right main frames, increases connection strength and bearing capacity of the frame, improves safety of balancing, controlling and driving and improves the service life.
Owner:GUANGDONG LONGXIN TECH CO LTD
Smart balance wheel with bolt-shaft structure
InactiveUS9840302B2Improve securityEasy to operateCharging stationsElectric propulsion mountingSafety controlEngineering
Owner:GUANGDONG LONGXIN TECH CO LTD
Regulator pin structure and regulator with the same, structure of balance with hairspring, and mechanical timepiece
InactiveUS20070091729A1Easy free fittingInhibition releaseFrequency stabilisation mechanismFrequency setting mechanismEngineeringPhysics
There is provided a regulator pin structure that is not only easily assembled but also capable of holding a hairspring in a gap without a risk of the hairspring being released, a regulator with the regulator pin structure, a structure of balance with hairspring, and a mechanical timepiece. A regulator pin structure of a regulator that is a component of a structure of balance with hairspring of a mechanical timepiece includes a pin-like body, a base that is situated on one end of the body and mounted to a body of regulator such that the position of the base is adjustable around the pivotal center axis E of the body, and a pair of two-pronged legs that extend from the other end of the body. The regulator pin structure is configured such that part of the outer end of a hairspring that is situated beyond a reformed portion of the hairspring along the outer circumference direction is freely fitted in a gap between the legs. Canopy-like projections are formed on at least one side edge of the front portion of at least one of the pair of legs in such a manner that the canopy-like projections laterally project along sides of the legs that face toward the gap. Regulator pin structure and regulator with the same, structure of balance with hairspring, and mechanical timepiece
Owner:SEIKO INSTR INC
Hairspring for a balance wheel/hairspring resonator
Owner:ROLEX SA
Harmless gasification treating process for medical waste
InactiveCN102641880ASave on shipping costsSave on processing costsSolid waste disposalIncinerator apparatusWater vaporExhaust pipe
The invention discloses a harmless gasification treating process for a medical waste. By the process, the water content of a biomass gasification auxiliary material is less than 40 percent, and the particle diameter is controlled to be between 0 and 10mm. The treating process comprises the following steps of: mixing the medical waste with the biomass gasification auxiliary material in volume ratio into a mixture, wherein metal and glass are removed from the medical waste and the medical waste is subjected to solid-liquid separation, adding the mixture into a medical waste treating gasification furnace at the speed of 1 to 50kg / h, operating a balance wheel to compress the mixture, covering a top cover, opening an exhaust pipe and a valve which is arranged on a primary air supply pipe, closing a valve on a secondary air supply pipe, starting a fan, and adjusting the temperature of the medical waste treating gasification furnace; and when flue gas which contains much and steam is exhausted, closing a valve on an exhaust pipe, opening a valve of the secondary air supply pipe, filtering crude gas generated by the medical waste treating gasification furnace through a silk bamboo net in a purified gas conveying pipe, and conveying purified gas into a gas burning tower. The treating process for the medical waste can perform harmless gasification treatment on the medical waste, saves transportation cost and treatment cost, and is obvious in social benefit and environment-friendly benefit.
Owner:罗江平
Temperature-compensated balance wheel/hairspring oscillator
ActiveUS7682068B2Assembly is smallFrequency stabilisation mechanismWound springsEngineeringDouble rotation
The invention relates to mechanical watch oscillators comprising an assembly consisting of a spiral 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.
Owner:CSEM CENT SUISSE DELECTRONIQUE & DE MICROTECHNIQUE SA RECH & DEV
Fixation of a spiral spring in a watch movement
InactiveUS20100157743A1Raise the ratioEasy to adjustEscapementsFrequency stabilisation mechanismEngineeringBalance wheel
A method is disclosed for making an isochronous balance-wheel-and-spring assembly for a horological movement in which one spring out of a series of springs is paired with a balance wheel. The spring has characteristics that vary by comparison with other springs of the series, and the spring is designed to be mounted on the staff of the balance-wheel via a collet. One collet out of a set of collets of different sizes is selected on the basis of the spring's characteristics. The collets of different sizes have connection points for attachment of the spring that are located (after assembly) at different distances from the center of the balance staff, the choice of the collet of the most appropriate size facilitating the adjustment of the balance-wheel-and-spring assembly.
Owner:MFG ROGER DUBUIS
Control member with a balance wheel and a planar spiral for a watch or clock movement
ActiveUS7344302B2Improve isochronismOperating disturbanceTorsion springsFrequency stabilisation mechanismEngineeringAngle of rotation
A regulating device including a balance (1) and a plane hairspring (2) for a time piece movement, the plane hairspring (2) including a stiffened portion (8) in its outer turn (7) that is arranged to cause the deformations of the turns to be substantially concentric. The spacing (d) between a terminal portion of the outer turn (7) and the last-but-one turn (9) of the hairspring (2) is large enough for said last-but-one turn (9) to remain free radially during expansions of the hairspring (2) up to amplitudes corresponding substantially to the maximum angle of rotation of the balance (1) in the movement.
Owner:PATEK PHILIPPE SA
Method and construction for preventing water leakage in diaphragm type compression pump
ActiveCN101153589ANo extra costAchieve leak-proof effectFlexible member pumpsPositive-displacement liquid enginesWater leakageCompression Pump
The invention relates to a preventing leakage water method and structure of diaphragm type pressure pump, wherein, hollow cylinders are respectively arranged on the acting zone of each piston relative to the screw holes of each balance wheel in the diaphragm sheet of the diaphragm type pressure ump. Every hollow cylinder is covered in a ladder hole of every piston pushing lump and passes through the central hole of the hollow cylinder by a fixing screw. During the screwing and fixing the screw hole of every swing wheel, the travel synchronous presses through the upper section of the hollow cylinder to expand and deform toward surroundings gradually. An interdiction structure of stopping water pressure leakage is formed between the bottom of the fixing screw head and the ladder hole top face of the piston pushing lump, thereby further preventing water pressure leakage and electrical short circuit and damage of pressure pump further after following into motor.
Owner:蔡应麟 +1
Swing
A swing comprises a support, a balance wheel, a swing plate, a magnetohydrodynamic device and a controller. The balance wheel is provided with a central shaft, a swing eccentric shaft and a swinging eccentric shaft, the swing eccentric shaft and the swinging eccentric shaft are arranged at different positions of the balance wheel, and the central shaft of the balance wheel is connected with a bearing block of the support in a movable fit manner; the magnetohydrodynamic device comprises a cylinder, a piston, a piston rod, magnetic fluid and an electromagnetic coil, the piston and the magnetic fluid are arranged in a cavity of the cylinder, the cylinder is hinged to the support, and the piston rod is hinged to the swinging eccentric shaft. The swing has the advantages that the piston and the piston rod ascend and descend in the magnetic fluid according to rhythm of music for children under the control of the controller, the piston rod drives the balance wheel to swing along with the rhythm of the music for the children, and the balance wheel and the swing eccentric shaft drive the swing plate to swing according to the rhythm of the music for the children, so that the children, particularly babies, on the swing can swing along with the music for the children, and the swing playing interestingness is improved.
Owner:郑运婷
Hairspring for a balance wheel/hairspring resonator
Hairspring for a balance wheel / hairspring resonator, comprising n blades, where n≧2, which are fastened via at least one of their respective homologous ends and wound in spirals with an angular offset capable of neutralizing the lateral forces liable to be exerted on its central arbor when one of the ends of each blade is moved angularly around said central arbor relative to its other end.
Owner:ROLEX SA
Self-winding mechanical watch with activity tracking
Owner:DP TECH
Timepiece component and method for making same
The invention relates to a timepiece component, such as a balance (1), an oscillating mass (12) or a wheel (20), that comprises a structure (2) made according to a micro-manufacturing technique, such as the DRIE technique. The component is characterised in that it further comprises at least one member (3) formed in or at the periphery of the structure (2) and made of a material different from that of the structure (2). This member (3) is typically metal and is formed by electro-forming using a cavity (7) of the structure (2) as a mould.
Owner:PATEK PHILIPPE SA
Electric-control slippage lifting platform for building construction
InactiveCN106836772AReduce labor intensityIncrease labor intensityBuilding scaffoldsDrive wheelArchitectural engineering
Owner:HEFEI ZHIHUI LONGTUTENG INTPROP CO LTD
Trailer system and method for inspecting vehicle by radiation imaging of vehicle through trailer system
ActiveUS20080159840A1Guaranteed stable operationSimple structureSlipwaysTramway railsRadiation imagingSelf driving
The present invention relates to a trailer system, and particularly to a self-driving trailer system for a radiation imaging inspection system and a method for inspecting a vehicle by radiation imaging of a vehicle through the trailer system. The self-driving trailer system comprises two trailers symmetrical in structure. Each of the trailers comprises a driving device, running wheels, a trailer body, a carrying device, a lift cylinder, a balance wheel, and two pairs of guide wheels. The driving device, the running wheels, and the balance wheel are coupled with the trailer body. The carrying device is coupled with the trailer body through the lift cylinder. A front carrying arm and a rear carrying arm can clamp front wheels of a vehicle under inspection, and move upwards and downwards by the lift cylinder. The trailer system according to the present invention is smooth and reliable in operation and simple in structure, and is applicable to different diameters of wheels of container lorries under inspection and is convenient in operation.
Owner:NUCTECH CO LTD +1
Permanent magnet zero-position retaining mechanism of two-dimensional digital servo valve
ActiveCN102168700AConvenient for manual and mechanical zero adjustmentDoes not affect dynamic performanceOperating means/releasing devices for valvesServomotor componentsEngineeringMotor shaft
The invention relates to a permanent magnet zero-position retaining mechanism of a two-dimensional digital servo valve. The mechanism comprises an upper balance wheel, an oscillating axle and a lower balance wheel, wherein the upper balance wheel is connected with a motor shaft; the lower balance wheel is connected with a valve plug; the middle part of the upper balance wheel is provided with a mounting hole for the motor shaft to penetrate; the lower end of the upper balance wheel is provided with a groove opening; the groove opening is provided with a oscillating axle internally; one end ofthe oscillating axle extends into a limiting hole of a motor mounting plate; the upper part of the lower balance wheel can be rotatably sleeved on the oscillating axle; the lower part of the lower balance wheel is provided with a mounting hole for a valve plug to penetrate; a left retainer and a right retainer are installed on the motor mounting plate, and are positioned at the left side and the right side of the lower end of the lower balance wheel; a groove of the left retainer is provided with a first permanent magnet internally; a groove of the right retainer is provided with a second permanent magnet; grooves at the left side and the right side of the lower balance wheel are respectively provided with a third permanent magnet and a fourth permanent magnet internally; the first permanent magnet and the second permanent magnet are arranged oppositely; and the second permanent magnet and the fourth permanent magnet are arranged oppositely. The mechanism provided by the invention hasthe advantages of good safety and is reliable in working.
Owner:ZHEJIANG UNIV OF TECH
Collapsible golf scooter cart having fold out balance wheels
A stable and lightweight golf cart comprises: an elongate frame has a front fork having a lower forked portion attached to a front wheel, a central portion pivotably attached to a front portion of the elongate frame, and a top portion carrying a steering member; a drive means and rear driven wheel attached to a rear portion of the frame; and, two laterally extended balance wheels attached to and carried by a central portion of the frame. In use the balance wheels are positioned outwardly thereby maintaining the golf cart in an upright position. In a preferred aspect of the invention the golf cart frame comprises a platform and each of the balance wheels are attached to one end portion of an arm having an opposite end portion which is hingably attached to a rear of the central portion of the platform so that the balance wheels may swing laterally outward from the platform to an in-use position. A central portion of the golf cart platform carries an upright member which in turn carries a golf bag support attachment, and possibly a seat.
Owner:HUSSAIN ALEX S
Control member with a balance wheel and a planar spiral for a watch or clock movement
Regulating device for a timepiece movement comprising a balance wheel (1) and a planar balance spring (2) comprising a balance spring (2) located in its outer ring (7) and arranged so that deformation of the ring substantially enables concentric reinforcement (8), characterized in that the spacing (d) between the terminal portion of the outer coil (7) of the hairspring (2) and the penultimate coil (9) is sufficiently large to allow expansion of the hairspring (2) The penultimate turn (9) can remain radially free up to an amplitude substantially corresponding to the maximum angle of rotation of the balance wheel (1) in the movement.
Owner:PATEK PHILIPPE SA
Oscillating system for mechanical timepiece
ActiveUS20050073912A1Simple structureEasy to adjustEscapementsFrequency stabilisation mechanismCoil springEngineering
An oscillating system for a mechanical timepiece includes an annular balance wheel arranged in a fixed manner coaxially in relation to a rotatably mounted balance staff. A helical spring encloses the balance staff and has its inner end fastened on the balance staff and its outer end fastened on a fastening device. The fastening device has a helical-spring connector with an inner clamping jaw and an outer clamping jaw, the inner clamping jaw being radially inside of the outer clamping jaw in relation to the axis of rotation of the balance staff. The outer end of the helical spring may be clamped firmly between a clamping surface of the inner clamping jaw and a clamping surface of the outer clamping jaw.
Owner:LANGE UHREN
Sling-type low-gravity simulation tension control buffer mechanism and adjustment method
InactiveCN102862688ARobustEffect of equivalent elastic coefficientCosmonautic condition simulationsStructural/machines measurementPull forceEquivalent stiffness
The invention relates to a sling-type low-gravity simulation tension control buffer mechanism and an adjustment method, wherein one end of a swing rod is connected with an axle center of a balance wheel and the other end of the swing rod is connected with an axle center of a winding drum; one end of a sling is wound on the winding drum and the other end of the sling passes through a wheel groove of the balance wheel to be connected with a work piece, of which the tension needs to be controlled; the winding drum and a motor shaft of a torque motor are coaxially installed and the balance wheel can swing around the motor shaft; the radius of the balance wheel is the same with that of the winding drum; a section, between a line outlet point on the winding drum and a line inlet point on the balance wheel, of the sling is parallel to the axis of the balance wheel; a hinge point on the swing rod is connected with one end of a steel wire rope and the other end of the steel wire rope passes through a rope sheave located above the swing rod to be connected with one end of a tension spring; the other end of the tension spring and the lower end of a rope sheave upper seat are separately connected with a support seat; and the rope sheave is installed on the upper end of the rope sheave upper seat. The suspension-type low-gravity simulation tension control buffer mechanism and the adjustment method of the invention are an important part of a constant tension control subsystem and can be used to obtain low equivalent stiffness near a large tension working point in a large range of buffering movement.
Owner:HARBIN INST OF TECH
Flexible escapement mechanism with movable frame
ActiveUS9075394B2Small thicknessLow production costEscapementsFrequency stabilisation mechanismEngineeringBalance wheel
Owner:NIVAROX FAR
Temperature compensation-type balance, timepiece movement, mechanical timepiece and manufacturing method of temperature compensation-type balance
ActiveUS20140241134A1Operational reliability is increasedHigh bonding strengthEscapementsFrequency stabilisation mechanismMetallic materialsEngineering
A temperature compensation-type balance includes a balance staff, and a balance wheel that has a plurality of bimetal portions which are disposed in parallel to each other in a circumferential direction around a rotational axle O of the balance staff and connection members which connect the plurality of bimetal portions and the balance staff. The bimetal portion is a layered body in which a first member and a second member are radially overlapped, and one end portion in the circumferential direction is a fixed end connected to the connection member and the other end portion in the circumferential direction is a free end. The first member is formed of a ceramic material, and the second member is formed of a metal material having a thermal expansion coefficient different from that of the first member.
Owner:SEIKO INSTR INC
Timepiece having a mechanical movement associated with an electronic regulator
ActiveUS7016265B2Efficient electromagnetic couplingClosely arrangedFrequency stabilisation mechanismElectric windingElectromagnetic couplingField line
Owner:THE SWATCH GRP RES & DEVELONMENT LTD
Excavator and sand dredger
InactiveCN101130995AEnhance sand dredging powerImprove delivery capacitySoil-shifting machines/dredgersHydraulic cylinderDrive shaft
The present invention is one kind of excavator and one kind of sand dredging boat, and relates to underwater sand excavation. The excavator is one sand dredging balance wheel with oscillating hydraulic cylinder to drive one balance wheel and the sand dredging board on the balance wheel to rotate reciprocally and periodically for cutting sand. The sand dredging boat includes one mechanical and hydraulic driving system and one conveying chain belt on the boat, and one sand dredging balance wheel in water. The present invention is superior to available chain-bucket sand dredging boat, and has separated excavating assembly and conveying assembly, hydraulic driving, 5-10 times raised production efficiency and easy control.
Owner:熊梓光
End effector mechanism of micro surgical instrument
ActiveCN105212987AIncrease wrap angleIncrease the equivalent allowable strengthSurgical forcepsFiberWrist
The invention discloses an end effector mechanism for a micro surgical instrument. The end effector mechanism comprises an interface board unit connected with a driving device, a carbon fiber tube connected with the interface board unit and adopting a hollow structure, an instrument tong head unit mounted at the far-end part of the carbon fiber tube and a plurality of wire cables used for controlling the instrument tong head unit to act according to preset commands, wherein the instrument tong head unit comprises a support part, a left side tong head, a right side tong head, a guiding wheel set and a wrist part guiding wheel set, a pair of second connecting arms are symmetrically arranged at the top of the support part, the left side tong head and the right side tong head are hinged to the second connecting arms in a crossed manner, the guiding wheel set and the wrist part guiding wheel set are symmetrically mounted in the middle and at the lower part of the support part; and an eccentric balance wheel groove is formed in the side wall of the lower part of the support part. The end effector mechanism can effectively increase both the accommodating space and the diameters of the guiding wheels, so that the winding wrap angles of the wire cables on the guiding wheels are correspondingly increased, accordingly, the equivalent allowable strength of the wire cables is improved, and the service lives of both the wire cables and the micro instrument are prolonged.
Owner:HARBIN SIZHERUI INTELLIGENT MEDICAL EQUIP CO LTD
Cycloidal transmissions
ActiveUS20130205942A1Rotating vibration suppressionDynamo-electric brakes/clutchesCentrifugal forceCycloid
The present invention refers to a conventional spur gear transmission or magnetic gear transmission, with a cycloidal configuration. The magnetic gears include contact points such that the mobile gear rolls on the fixed gear. Alternatively, a balance wheel is incorporated, which generates a centrifugal force opposite to the one associated with the mobile gear, of equal magnitude and on the same plane as this latter one, thereby completely eliminating the unbalancing of the mechanism. The balance wheel is mounted on the high-speed shaft in a manner similar to the mobile gear, and has the freedom to displace itself radially through centrifugal effect in the opposite direction to the eccentric position of the center of the mobile gear until it presses against a fixed track over which it rolls, concentric with the fixed gear with an equal force, opposite and collinear with that produced by the mobile gear.
Owner:UNIV NAT AUTONOMA DE MEXICO
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