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49 results about "Balance spring" patented technology

A balance spring, or hairspring, is a spring attached to the balance wheel in mechanical timepieces. It causes the balance wheel to oscillate with a resonant frequency when the timepiece is running, which controls the speed at which the wheels of the timepiece turn, thus the rate of movement of the hands. A regulator lever is often fitted, which can be used to alter the free length of the spring and thereby adjust the rate of the timepiece.

Cable mounting mechanism with shielding function

The invention provides a cable installation mechanism with a shield, and relates to the technical field of cable installation. Two locking mechanisms are further included, each locking mechanism comprises a fixing cylinder, the cable is in sliding connection with the fixing cylinder, multiple sets of locking grooves are formed in one end of the fixing cylinder, a rotating groove is formed in the other end of the fixing cylinder, multiple sets of balance springs are arranged in the rotating groove, multiple sets of sliding grooves are formed in the fixing cylinder, and a hexagonal groove is formed in the outer side wall of the fixing cylinder. A locking ring is rotationally connected into the rotating groove, multiple sets of unlocking grooves are formed in the locking ring, the multiple sets of balance springs correspond to the multiple sets of unlocking grooves in a one-to-one mode, the two ends of each balance spring are fixedly connected with the inner side walls of the unlocking grooves, and multiple sets of friction strips are arranged on the outer side wall of the locking ring. The problem that a cable body, a shielding pipe and a corrugated pipe need to be fixed separately in traditional cable installation is solved, an integrated synchronous locking mechanism is designed, and one-time rapid synchronous locking of the cable, the shielding pipe and the corrugated pipe is achieved.
Owner:SHANGHAI WEYER ELECTRIC APPLIANCES

A balance spring flatness testing fixture

ActiveCN224310454UWork holdersClassical mechanicsBalance spring
The utility model provides a hairspring flatness inspection fixture relates to hairspring inspection technical field, including clamp station, the clamp station top end along the length direction one side is equipped with hairspring inspection groove, both ends of hairspring inspection groove all are installed and go in and out material clamp, be installed between hairspring inspection groove and inspect clamp station, the in -out material clamp includes first shaft roll, first shaft roll has two and is parallel to up and down, first shaft roll rotation is installed in first axle seat, and the top of first axle seat is installed with lifting assembly, and the lifting assembly is driven to make the upper inspection head close / away from second shaft roll through first air cylinder and lift inspection head, the utility model discloses a hairspring flatness inspection fixture structure design is reasonable, and the setting of lifting assembly and first air cylinder makes the operation more convenient, and the operator only needs simple operation to complete the loading of hairspring, detection and taking out process, reduces the operation difficulty, improves work efficiency.
Owner:KUNSHAN XINTAO PRECISION COMPONENTS CO LTD

Embedded self-adaptive electric pulse auxiliary rolling or straightening device

The invention relates to the technical field of plastic forming equipment, in particular to an embedded self-adaptive electric pulse auxiliary rolling or straightening device which comprises a rack, pressing wheel set supports and an electrifying assembly, the front pressing wheel set support and the rear pressing wheel set support are embedded in the rack, and the front pressing wheel set support and the rear pressing wheel set support are connected through a balance spring. The electrifying assembly is fixedly connected between the pressing wheel set supports on the left side and the right side of the rolling mill. The pressing wheel set supports are fixedly connected with the rack through the connecting bolts, when a rolled plate passes through the electrifying assembly, the pressing wheel set supports rotate in a self-adaptive mode along with the electrifying assembly with the connecting bolts as the center, the plate is made to be precisely attached to the electrifying assembly all the time, and the front pressing wheel set support and the rear pressing wheel set support are connected through the balance springs to achieve compression and rebounding of the pressing wheel set supports. When plates with different thicknesses are rolled, the electrifying assembly is precisely attached to the plates to guarantee stable electrifying.
Owner:TAIYUAN UNIVERSITY OF SCIENCE AND TECHNOLOGY

Method for manufacturing a sprung balance oscillator for high torque variation balance springs

A method for manufacturing an oscillator for a timepiece made from a balance and a balance spring, the method including measuring the average moment of inertia of a batch of balances; providing pinned up balance springs, the balance springs having an excess number of coils forming up to three more turns than the final number of coils; making a first predetermined external cut of the balance springs over a length of one to two coils, then measuring the torque of the balance springs and sorting them according to the value of the measured torque; assembling the balance springs, whose measured torque corresponds to the balances, are assembled to form an oscillator with an intermediate frequency and to determine the length to be cut to achieve the desired oscillation frequency; making a second external cut of the balance springs selected to achieve both the desired oscillation frequency and a target value.
Owner:NIVAROX FAR SA

Tourbillon structure of mechanical watch with counterweight compensation

The invention discloses a tourbillon structure of a mechanical watch with counterweight compensation, and relates to the technical field of mechanical watch application, the tourbillon structure comprises a frame plate, a first direction shaft, an outer tourbillon, a second direction shaft, an inner tourbillon, an escapement mechanism and a transmission system, the outer tourbillon is rotatably connected with the frame plate through the first direction shaft, and the outer tourbillon is rotatably connected with the frame plate through the second direction shaft; the outer tourbillon is rotatably connected with the inner tourbillon through a first direction shaft, the axis of the outer tourbillon is perpendicular to the first direction shaft, the inner tourbillon is rotatably connected with the outer tourbillon through a second direction shaft, the escapement mechanism is arranged on the inner tourbillon, and the escapement mechanism comprises an escapement wheel, an escapement fork and a hairspring balance wheel. And in combination with an inertia fine adjustment mechanism on the balance wheel, collaborative optimization is performed from two levels of frame dynamic balance and speed regulation period, so that the problem of uneven mass distribution easily caused by a complex structure of the double-shaft tourbillon is effectively solved, and frictional resistance and unnecessary energy loss of the rotating frame are remarkably reduced.
Owner:SHENZHEN FUMARO TECHNOLOGY CO LTD

Modular wheeled mobile ultrasonic structure detection apparatus and detection method

A modular wheeled mobile ultrasonic structure detection apparatus is disclosed, including a mobile detection platform, at least one ultrasonic detection roller, at least one ultrasonic sensor, and a steering balance mechanism including a connecting arm and at least one balancing apparatus; the balancing apparatus includes a balancing cylinder hinged to the connecting arm, a balancing spring provided in the balancing cylinder, and a steering linkage hinged to the mobile detection platform, a piston being connected to one end of the steering linkage away from the mobile detection platform and the balancing spring being in contact with the piston; and the piston can move along a length direction of the balancing cylinder and thereby define a direction of the steering linkage. When the structure surface fluctuates, bends, or turns, the mobile detection platform can rotate relative to the connecting arm to change the moving posture to adapt to various complex detection conditions. A mobile carrier can pull the detection apparatus in a moving state to realize the non-contact continuous acquisition of ultrasonic waves between the ultrasonic sensor and the structure surface.
Owner:TONGJI UNIV +1

Mechanical timepiece

A mechanical timepiece includes a spring, a balance, an oscillation circuit, a speed governing mechanism configured to include a permanent magnet and a coil, one of the permanent magnet and the coil being held by the balance, an external magnetic field detection mechanism configured to detect an external magnetic field, a vibration detection mechanism configured to detect vibration of the balance and output a vibration detection signal, a speed governing control mechanism configured to output a drive pulse to perform processing for governing the balance, a power storage mechanism configured to store electric energy, and a generator configured to generate the electric energy. The speed governing control mechanism changes a processing content of the speed governing of the balance in accordance with a detection result of the external magnetic field.
Owner:SEIKO EPSON CORP

Metal material punching positioning clamp

The utility model discloses a metal material punching positioning clamp, which relates to the technical field of metal material processing, and comprises a punching machine and a support frame, a positioning bracket is arranged in the support frame, a positioning pressing block is arranged above the positioning bracket, and the positioning pressing block applies pressure to a blank along with the punching action of the punching machine. A positioning clamp fixedly arranged on an existing punching machine is changed into a supporting plate structure arranged through a balance spring, a blank is symmetrically supported, positioning of the blank and the punching end can be automatically corrected according to elastic force adjustment of the balance spring, in addition, a positioning pressing block is arranged through a positioning bracket, and the positioning pressing block reciprocates along with punching action, so that punching precision is improved. The feeding space cannot be affected, abutting positioning can be formed on the blank before punching, and the situation that the precision is affected due to movement of the blank caused by point stress at the moment of punching is avoided.
Owner:CHANGCHUN CONSTR GRP CO LTD

Timepiece regulating member comprising an index-assembly system provided with locking means

A regulating member for a horological movement including an inertial mass, for example a balance, a balance spring, and an index-assembly system for adjusting the rate of the balance spring, the index-assembly system including a stud-holder including a first portion and a second portion, the first portion being movable relative to the second portion, wherein the regulating member includes locking device configured to block the second portion of the stud-holder in one position with respect to a plate of the movement.
Owner:ETA SA MFG HORLOGERE SUISSE

Multi-point foam pressure maintaining device

ActiveCN223972181UNon-rotating vibration suppressionPressesPhysicsBalance spring
A multi-point foam pressure maintaining device comprises a base, and a pressure maintaining area, a feeding and discharging area and a translation assembly are arranged on the base. A pressure maintaining base is arranged on the translation assembly, a positioning groove is formed in the upper end of the pressure maintaining base, and a positioning jig is arranged in the positioning groove; a pressure maintaining mechanism is arranged above the pressure maintaining area and comprises a fixing frame connected with the base, a downward pressing drive is arranged on the fixing frame, the output end of the downward pressing drive is connected with a horizontal pressing plate, a floating pressing plate is arranged below the horizontal pressing plate, at least two pressing heads are arranged at the lower end of the floating pressing plate, and at least two balance guide columns are arranged on the upper end face of the floating pressing plate. The upper end of the balance guide column penetrates through the horizontal pressing plate and is in sliding connection with the horizontal pressing plate, the balance guide column is sleeved with a balance spring, and the two ends of the balance spring abut against the horizontal pressing plate and the floating pressing plate respectively. Through the design of the balance guide columns and the balance springs, it is ensured that the floating pressing plate can be automatically adjusted in the pressure maintaining process, the pressure of all the pressing heads is kept balanced, and uneven pressure caused by the uneven surface of a product is avoided.
Owner:SUZHOU FUYUANTAO ELECTRONIC TECH CO LTD

A type of existing pipeline PT testing penetration tool

ActiveCN224456618URobot handRobotic arm
This utility model relates to the field of nondestructive testing technology and discloses a permeation fixture for PT testing of existing pipelines. It includes a base, a central shaft, a central spring, and two opening and closing mechanisms. The central shaft is slidably connected to the base, and the two opening and closing mechanisms are symmetrically arranged on both sides of the central shaft. Each opening and closing mechanism includes a cavity tile, a balancing swing assembly, and a guide wheel. One end of the cavity tile is rotatably connected to the central shaft, and the guide wheel is rotatably mounted on the base. The outer wall of the cavity tile abuts against the guide wheel, and the two cavity tiles can be fastened together to form a hollow cylindrical immersion section. The balancing swing assembly includes a connector, a swing rod, and a balancing spring. The balancing swing assembly and the central spring work together to allow the two cavity tiles to adaptively lock in both open and closed states. This permeation fixture can establish an immersion environment at the location of the pipe section to be tested in an existing pipeline. Permeation fluid is applied to the outer wall of the pipe section to be tested through immersion, ensuring uniform application of the permeation fluid. It can also be directly connected to feeding equipment such as robotic arms, which helps improve testing efficiency.
Owner:SICHUAN AEROSPACE QIANYUAN TECH CO LTD

A vacuum apparatus and vacuum valve arrangement

The application discloses a vacuum equipment and a vacuum valve device, which comprises a valve plate, a rotating shaft and two or more than two balance springs; the valve plate is arranged opposite to a valve port and is connected to the rotating shaft through a connecting arm; the rotating shaft rotates circumferentially to drive the valve plate to close or open the valve port; the connecting arm and the valve plate are rotatably connected through a hinged shaft, and balance springs are arranged on both sides of the rotating direction of the hinged shaft; during the closing process of the valve plate, the two ends of the balance springs are respectively abutted against the connecting arm and the valve plate, so that the upper part and the lower part of the sealing ring simultaneously contact the sealing surface of the valve port. During the closing process of the valve plate, the balance springs can make the upper part and the lower part of the sealing ring simultaneously contact the sealing surface of the valve port, so that local wear of the sealing ring of the valve plate can be avoided, and the vacuum sealing property is ensured.
Owner:GOLD STONE (FUJIAN) ENERGY CO LTD

A component mounting apparatus for producing a hairspring for a gas cell

ActiveCN224475814UAirbagPhysics
This utility model discloses a parts mounting device for producing airbag hairsprings, including a frame with a turntable on the frame and multiple workstations on the turntable. Around the corresponding workstations on the turntable, a spring mounting mechanism, a limiting component mounting mechanism, and a snap-fit ​​mounting mechanism are sequentially arranged on the frame. The spring mounting mechanism is used to install springs onto the workpiece, the limiting component mounting mechanism is used to install limiting components onto the workpiece, and the snap-fit ​​mounting mechanism is used to install snap-fits onto the workpiece. This utility model's parts mounting device for producing airbag hairsprings is easy to use. By setting a turntable on the frame and the spring mounting mechanism, limiting component mounting mechanism, and snap-fit ​​mounting mechanism sequentially distributed around the turntable, it achieves automated mounting of various parts during the airbag hairspring production process.
Owner:JIAXING AOCHI AUTO PARTS CO LTD

Intelligent ventilation system

The invention relates to the technical field of ventilation equipment, and discloses an intelligent ventilation system which comprises a swing frame, one end of the top of the swing frame is connected with a connecting shaft seat in a sleeving mode, a stroke groove is formed in the top face of the swing frame, and a through pipe hole is formed in the position, close to the stroke groove, of the top face of the swing frame. A second balance spring is arranged at the position, close to the bottom, of the top face of the swing frame and connected with the inner wall of the side chamber. According to the device, an annular frame is driven to move in a ventilation channel through airflow generated when a fan runs and opposite acting force on the device, so that a limiting rod is driven to stretch out and draw back in a telescopic pipe, and then a swing frame is driven to rotate through the elastic force difference between a first balance spring and a second balance spring; and the water pressing plate is driven to move in the water storage tank, no extra power equipment needs to be arranged in the whole process, and the building energy-saving effect is achieved on the premise that the ventilation efficiency is guaranteed.
Owner:江苏方硕环境科技有限公司

Visual inspection equipment for clamping groove of hairspring copper seat of pressure gauge

The utility model relates to the technical field of pressure gauge detection, and discloses a pressure gauge hairspring copper seat clamping groove visual detection device which comprises a bottom plate, a rotating frame is arranged above the bottom plate, a rotating table is hinged to the middle end of the rotating frame, a first motor is installed on the upper surface of the bottom plate, and a second motor is installed on the lower surface of the bottom plate. The output end of the first motor is fixedly connected with the bottom of the rotating frame through a coupler, and an adjusting mechanism used for adjusting the inclination angle of the rotating table is arranged between the rotating table and the rotating frame. According to the visual detection equipment for the clamping groove of the hairspring copper seat of the pressure gauge, the permanent magnets arranged in a distributed manner are arranged on the upper surface of the rotating table, a group of trays are attracted, the trays are annular, and the widths of the annular placing grooves formed in the upper surfaces of the trays are different, so that copper seats with different diameters can be easily placed, and the overall flexibility is improved; the detection requirements of copper bases of different specifications can be met, and the device can adapt to diversified production tasks without replacing equipment or carrying out complex adjustment.
Owner:KUNSHAN YONGHONGDA PRECISION INSTR CO LTD

Instrument hairspring convenient to install

ActiveCN223956310USensitive elementsScrew threadPhysics
The utility model relates to the technical field of instrument hairsprings, and discloses an instrument hairspring convenient to install, which comprises a chassis, and a fixing assembly and a protection assembly are arranged above the chassis. According to the instrument hairspring convenient to install, through the design of the elastic plates and the L-shaped swing rods, the installation, protection and disassembly processes of the hairspring body are optimized, during installation, the elastic plates are in threaded connection with the base body through the extrusion blocks, uniform pressure is applied to the inner ring of the hairspring body, the installation steps are simplified, and the installation efficiency is improved. Meanwhile, deformation or damage caused by uneven stress is avoided, the stability and reliability of the hairspring body are ensured, through cooperation of the L-shaped swing rod and the contact rod, deformation or collapse of the hairspring body caused by gravity, inertia or vibration in the swing process is prevented, the service life is prolonged, and in the disassembly process, after an extrusion block is separated from a base body, the extrusion block is not prone to deformation or collapse. And the elastic plate automatically resets, the L-shaped swing rod is pulled by the connecting wire to be away from the hairspring body, rapid disassembly is achieved, and maintenance and replacement are convenient.
Owner:KUNSHAN YONGHONGDA PRECISION INSTR CO LTD

A series of watch movement manufacturing methods

A method for manufacturing a series of timepiece movements is provided, the method comprising the steps of: manufacturing a plurality of balance springs, measuring the stiffness of each of the balance springs and classifying the balance springs according to a plurality of stiffness classes, manufacturing a plurality of balance wheels according to a determined moment of inertia distribution depending on the stiffness classes of the balance springs, measuring the moment of inertia of each of the balance wheels and classifying the balance wheels according to a plurality of classes for each moment of inertia, defining a first group of classes of balance springs and a second group of classes of balance springs, the classes of each individual group being consecutive, and the average stiffness of the balance springs of the second group of classes of balance springs being higher than the average stiffness of the balance springs of the first group of classes of balance springs; The method includes the steps of pairing a class with a corresponding class of balance, assembling a plurality of balance-hairspring oscillators including balance springs and balance wheels paired by class, and assembling a series of timepiece movements each including one of the balance-hairspring oscillators, the balance-hairspring oscillators being configured to be maintained in oscillation by an escapement including an escapement wheel driven by a gear train, and for oscillators including balance springs of the second class group, the corresponding movement is configured so that the torque available at the escapement wheel is lower than the torque available at the escapement wheel for a movement incorporating an oscillator including balance springs of the first class group.
Owner:BREITHNG

Hanging basket for electroplating

The utility model discloses a hanging basket for electroplating, which comprises a hanging plate, the hanging plate is a regular triangle, a grid panel is fixedly arranged on one side of the hanging plate, a connecting column is fixedly arranged on the other side of the hanging plate, a self-balancing component is fixedly arranged at the top of the hanging plate, a hook is fixedly arranged at the top of the self-balancing component, and the hanging plate is fixedly arranged on the hanging plate. Through the design of a draining assembly and a balancing assembly which are fixedly arranged at the bottoms of the two sides of the hanging plate and particularly through the combination of a balancing cylinder and a balancing spring, automatic balance of the hanging basket in the electroplating process is effectively achieved, shaking or inclination caused by flowing of electroplating liquid or uneven distribution of the weight of workpieces is avoided, the electroplating uniformity and quality are improved, and the electroplating quality is improved. Due to the arrangement of the draining assembly, especially the design of the draining holes with different diameters, layered drainage is achieved, it is ensured that the electroplating liquid can be discharged from the workpiece and the hanging basket more thoroughly, and follow-up cleaning and maintenance are facilitated.
Owner:CHANGCHUN LEVI AUTO PARTS CO LTD

Tourbillon or carousel mechanism for watch movements

PendingJP2026506916AVisual indicationEscapementsKinematic couplingClassical mechanics
The present invention provides a rotating cage (3) configured to rotate by a power source (M); a balance spring oscillator (7) supported by a rotating cage (3); an escapement (9) carried by the rotating cage (3) and configured to cooperate with the oscillator (7) to maintain its oscillation, the escape wheel (11) being integrally mounted in rotation on an escapement pinion (15) pivotally mounted relative to the rotating cage (3) and meshing with teeth (17) carried by the frame element; According to the invention, the mechanism further comprises a display element (23) kinematically coupled to the escape wheel (11) and indicating the minutes of the time division.
Owner:GREUBEL FORSEY SA

Watch with mechanical movement comprising a rotating frame governor

PendingCN122260748APrecise adjustment of relative positionFrequency stabilisation mechanismGear wheelClassical mechanics
The invention relates to a rotary frame type governor (200) comprising a fixed wheel (1), a frame carrying a hairspring balance wheel mechanism, an escapement element (5) and an escape wheel (4) whose pinion (40) is in mesh with the fixed wheel (1), a lower frame (2) carrying engagement teeth (22) and a locking element (21), a loading wheel (61) attached on a loading spring (62) and pivoted on a bearing race (3) fastened to the movement plate, a locking wheel (7) whose teeth can be stopped by the locking block (21), the assembly constituting a planetary gear system wherein the lower frame (2) is the sun wheel, the race (3) is the planet carrier, the loading wheel (61) is the first planet wheel and the locking wheel (7) is the second planet wheel, the locking wheel (7) being arranged to release or lock the movement of the race (3) and carrying a locking pinion (70) in mesh with the fixed wheel (1).
Owner:GLASHUTTER UHRENBETRIEB GMBH

Pressure gauge hairspring elasticity testing fixture

This utility model discloses a pressure gauge hairspring elasticity testing fixture, including a base plate. Support rods are fixed at the four corners of the upper surface of the base plate, and a top plate is fixed at the top of each support rod. A bracket is fixed at the middle of the upper surface of the top plate, and a cylinder is fixed at the middle of the bracket. A piston rod is installed at the output end of the cylinder, and a push plate is fixed at the end of the piston rod. A lifting plate is fixed at the bottom of the push plate. The support rod passes through the lifting plate, and the lifting plate and support rod are slidably connected. This utility model uses the cylinder to act on the piston rod, which in turn acts on the push plate, causing the push plate to push and pull the lifting plate, thus controlling the height of the lifting plate. The height between the base plate and the lifting plate can be adjusted. When the lifting plate clamps and fixes the hairspring on the base plate, the adjustment can be made according to the size of the hairspring. It has the advantages of wide applicability and low limitation.
Owner:SUZHOU WEIMING PRECISION CO LTD

Method for setting the rate of a regulating horology organ using a laser

A method for setting the rate of a regulating organ (10) in a horology movement, the regulating organ (10) including an inertial mass (5), such as a balance, and resilient means (2) for returning the inertial mass (5), such as a balance spring, the resilient return means (2) being configured to enable the inertial mass (5) to carry out an oscillatory movement, the method including a step in which material is added to and / or removed from the inertial mass (5) by projecting material (9) using a laser (7).
Owner:ETA SA MFG HORLOGERE SUISSE

Horological regulating member with balance spring provided with pressure-compensating means

A regulating member for a horological movement includes an oscillating weight, for example a balance, a balance spring including a flexible strip wound about itself in a plurality of turns, the strip having a predefined rigidity to allow the oscillating weight to undergo a rotary oscillatory motion, and the strip including an outer end of the strip. The regulating member includes a resilient device for compensating for external pressure, connecting the outer end to a first support that is immobile with respect to the horological movement, the resilient compensation device being configured to adapt its stiffness according to the external pressure in order to compensate for an effect of the external pressure on the regulating member. Additionally, the horological movement includes the regulating member.
Owner:THE SWATCH GRP RES & DEVELONMENT LTD

Thickness adjusting mechanism for hairspring processing

The utility model relates to a thickness adjusting mechanism for hairspring machining, and relates to the technical field of hairspring machining, the thickness adjusting mechanism comprises a rack, the rack is used for supporting the thickness adjusting mechanism, an unwinding roller and a winding roller are rotatably installed on the rack, the unwinding roller unwinds a hairspring, and the winding roller winds the hairspring; the back-up roll and the extrusion roll are rotatably installed on the rack, and a hairspring penetrates through the space between the back-up roll and the extrusion roll; and the adjusting assembly is installed on the machine frame, and the adjusting assembly is used for adjusting the extrusion roller. The hairspring can be pressed into a flat shape, and the hairspring can be machined into the specified thickness according to the design in the machining process of the hairspring, so that the hairspring can be normally used.
Owner:KUNSHAN XINTAO PRECISION COMPONENTS CO LTD

Regulator, movement, and timepiece

ActiveUS12669779B2RegulatorHorology
Provided are a regulator capable of further improving time measurement accuracy as compared with the related art, and a movement and timepiece including the regulator. A regulator includes a regulator pin. The regulator pin includes a pair of regulator pin main bodies and a regulator pin base portion. The regulator pin base portion is formed integrally with the pair of regulator pin main bodies and is held by a regulator body. The regulator pin main bodies are disposed so as to sandwich an outer end portion of a hairspring and contain zirconia. In the regulator pin, by extrusion molding, an outer peripheral surface and an inner peripheral surface of the regulator pin are formed, and the regulator pin main body and the regulator pin base portion are integrally formed.
Owner:SEIKO HLDG KK TRADING AS SEIKO HLDG CORP

An inner side spoiler actuating cylinder spring seat dismounting and assembling component and a using method thereof

The application discloses an inner side spoiler actuating cylinder spring seat dismounting and assembling component and a use method, a supporting block positioning sleeve and a loading supporting block, the supporting block positioning sleeve, the loading supporting block, a pressing nut and a piston rod are connected, a first threaded through hole is formed in the right end of the loading supporting block, a positioning rod is screwed in the first threaded through hole, the thread pitch on the positioning rod is twice that of the thread pitch on the spring top seat installed in the mounting hole of the actuating cylinder shell, a positioning sliding sleeve is sleeved in the third through hole in the lower end of the positioning rod, a balance spring is pressed in the third through hole, the lower end of the balance spring is pressed on the upper end of the positioning sliding sleeve, compared with the prior art, the application has the beneficial effects that: the positioning rod and the spring top seat are synchronously rotated, the balance spring can synchronously apply a same follow-up load as the spring elastic force, and then the force of the spring is offset, the rotation of the synchronous open spanner is convenient and fast, and time and labor are saved.
Owner:SHENYANG NORTHERN AIRCRAFT MAINTENANCE CO LTD

Balance spring for a timepiece movement

ActiveCN115685717BMaterials sciencePhysics
The invention relates to a balance spring intended to equip a balance of a timepiece movement, characterized in that it is made of an alloy comprising, in weight percent: Ti content of 1-80 wt%, H content of 0.17-2 wt%, total content of all other elements less than or equal to 0.3 wt%, the balance of the 100 wt% consisting of Nb, Ti, H and possible trace other elements chosen from O, C, Fe, N, Ni, Si, Cu and Al. The invention further relates to a method for its manufacture, with a step of thermochemical treatment of a blank made of Nb-Ti alloy in an atmosphere comprising hydrogen, so as to enrich the Nb-Ti alloy with hydrogen in interstitial form.
Owner:NIVAROX FAR SA