255 results about "Balance spring" patented technology

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.

Method for testing a balance spring or a balance spring blank arranged to form a balance spring, the balance spring being required to have at least one predetermined expected resonance frequency, the testing method including the following steps:a. applying to the balance spring or balance spring blank, a vibratory excitation that varies over time in order to cover a predetermined frequency range,b. identifying at least one characteristic of a resonance frequency of the balance spring or balance spring blank, such as a resonance peak, during, or in response to, the vibratory excitation over the predetermined frequency range,c. subjecting the resonance frequency characteristic identified in step b. to a prediction machine in order to determine if the balance spring or balance spring blank is affected by a defect.

The invention relates to the technical field of mechanical watch tourbillon, in particular to a rotation inertia adjustable double-shaft tourbillon structure which comprises a frame plate, a first direction shaft, an outer tourbillon, a second direction shaft, an inner tourbillon, an escapement mechanism and a transmission wheel train. The inner tourbillon is rotationally connected with the outer tourbillon through a second direction shaft, the escapement mechanism is arranged in the inner tourbillon and comprises an escapement wheel, an escapement fork and a hairspring balance wheel, four adjusting columns are arranged on the surface of the hairspring balance wheel in the circumferential direction of the hairspring balance wheel at equal intervals, the adjusting columns are sleeved with C-shaped weights, and the C-shaped weights are in interference fit with the adjusting columns; the transmission wheel train is used for driving the inner tourbillon to rotate around the second direction shaft while driving the outer tourbillon to rotate around the first direction shaft and driving the escapement wheel to rotate at the same time. The balance wheel has the effect that the rotation inertia of the balance wheel can be flexibly adjusted.

The invention discloses an auxiliary instrument for a soft endoscope, which comprises an operating part and a working part, the working part comprises a sheath tube part, a bending part and a forceps head part which are sequentially connected from a near end side to a far end side, and the auxiliary instrument is characterized in that the operating part comprises a steering control mechanism and a forceps head control mechanism; wherein the steering control mechanism can control the bending part to conduct multi-degree-of-freedom surrounding bending so as to drive the plier head part to be bent, and the plier head control part can control the plier head part to be opened and closed; the steering control mechanism comprises four steering traction wires, a steering push rod, a guide hemisphere, a hemisphere seat, a ball rod, a supporting frame, a balance spring, a pressing ring, a locking ring and an O-shaped ring,

A mechanical timepiece includes: a hairspring; a permanent magnet; a soft magnetic core; a control circuit for performing rate adjustment based on a counter-electromotive voltage caused in a coil by a motion of the permanent magnet accompanying a forward direction motion and a reverse direction motion of the balance wheel. The permanent magnet is arranged so that, under a state in which the hairspring is brought to an equilibrium length, a direction of magnetization is directed to the first end portion side or the second end portion side.

The utility model discloses a compact instrument hairspring, which relates to the technical field of instrument hairsprings and comprises a chassis, the top end of the chassis is movably connected with a movable column, the outer side of the movable column is fixedly connected with a body, the top end of the movable column is movably connected with a cross block, and the top end of the cross block is fixedly connected with a knob. A limiting mechanism is arranged on the inner side of the movable column, and the limiting mechanism is movably connected with the bottom end of the cross block. By means of the limiting mechanism, the rotary knob is pressed downwards, the cross block and the tooth block can be driven to move downwards synchronously, the tooth block is separated from the tooth ring, the movable block is pushed to move downwards, the limiting block moves along the limiting groove, the reset spring is compressed and shortened, the rotary knob is rotated, the movable column is driven to rotate under the action of the cross block, and the movable column is driven to rotate. Therefore, the body is continuously wound on the outer side of the movable column, gaps in the body are reduced, and the compactness is improved.

To provide an actuation mechanism that is adaptable to a linear displacement actuator.SOLUTION: A clock movement-purpose speed governing member 1 comprises: means for adjusting inertia mass, for example, a balance spring 25 including a balance with hairspring 23 and a wound ribbon, and rigidity of the balance spring. The speed governing member includes a mechanism for actuating the adjustment means, and an actuation mechanism includes: an actuator 30 that includes a movable part mechanically linked to the adjustment means; and means for adjusting the actuator. The adjustment means includes a pivotal control lever 45, and the control lever includes a support arm and pivotal arm cooperating with the movable part of the actuator for mechanically displacing the movable part.SELECTED DRAWING: Figure 2

A method for manufacturing a batch of horological balance springs (2a), the average of whose stiffnesses lies within a predetermined range, includes forming in a wafer the horological balance springs (2b, 2c) with dimensions that differ from the dimensions required to obtain the batch of horological balance springs (2a), the average of whose stiffnesses lies within said predetermined range; determining the stiffnesses of said systems; computing a dimensional correction to be applied to the horological balance springs; andmmodifying the dimensions of the horological balance springs (2b, 2c) formed, on the basis of a dimensional correction computed to obtain the batch of horological balance springs (2a).

A balance-spring stud holder includes a clamping part defining three contact zones intended to press against a lateral wall of a projecting part of the balance bridge, a first contact zone being connected to a second contact zone by a first part and to the third contact zone by a second part of the clamping part. The first part has a first stiffness at a second median point of the second contact zone, relative to a first median point of the first contact zone, which is greater than three times a second stiffness that the second part has at a third median point of the third contact zone relative to the first median point of the first contact zone. The first stiffness can be seven times greater than the second stiffness.

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.

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.

Strut (10) which includes: a first end (12), a second end (14), a cylinder (16) and a piston (18), wherein the piston (18) is mechanically coupled to the first end (12) and the cylinder (16) is mechanically coupled to the second end (14); a fluid chamber (26) formed between the cylinder (16) and the piston (18); a first fluid passage (36) that fluidically couples the fluid chamber (26) and a fluid reservoir (22); a second fluid passage (38) which fluidically couples the fluid chamber (26) and the fluid reservoir (22) via a check valve (40); and wherein the check valve (40) has an open pre-tensioned, movable valve element (42) which is coupled to a balance spring (41); wherein the movable valve element (42) interacts with a valve seat (43) to control fluid flow through the second fluid passage (38); and wherein the movable valve element (42) responds to a pressure from the balance spring (41); characterized in that the first fluid passage (36) includes an annular gap (25) formed between the cylinder (16) and the piston (18).

The utility model discloses a switch self-reset mechanism which comprises an inner button, a shifting block, a switch shifting arm and a reset spring used for applying forward thrust to the inner button, a hinge shaft head is movably arranged in a corresponding hinge limiting hole, the upper side and the lower side of the shifting block are respectively and correspondingly provided with a balance elastic piece, and the balance elastic piece comprises an elastic piece body. The rear portion of the elastic piece body is attached to the shifting block through the elastic restoring force of the elastic piece body, the balance elastic piece comprises a handle piece part, the handle piece part is clamped between the corresponding elastic piece positioning block and the bottom of the groove, and the switch self-resetting mechanism is beneficial for enabling the switch to act flexibly and stably. Meanwhile, the switch function piece and the self-reset switch provided by the utility model comprise the switch self-reset mechanism, so that the switch action is flexible and stable.

A device (6) for autonomous adjustment of the active length of a spiral (5), for oscillators (4, 5) of the balance-spiral type, comprising a cock (12) mounted on a plate (13) of a horological movement (2) and in which a balance shaft pivots, the spiral (5) including an inner end secured to the balance shaft and an outer end secured to a balance spring stud (8) fastened to a balance spring stud holder (10), the balance spring stud holder (10) being pivotably mounted on the cock (12) concentrically to the balance shaft, and means for modifying the active length of the spiral (5).

The invention relates to a method for detecting a hairspring or a hairspring blank arranged as a hairspring, the hairspring having to have at least one preset oscillation frequency, the method comprising the following steps: a. applying a time-varying vibration excitation to the hairspring or the hairspring blank to cover a preset frequency range; b. determining at least one characteristic of the oscillation frequency of the hairspring or the hairspring blank, such as a resonance peak, during the vibration excitation in the preset frequency range; c. providing the oscillation frequency characteristic determined in step b to a prediction machine to determine the stiffness of the hairspring or the hairspring blank and / or to determine whether a dimensional correction of the hairspring or the hairspring blank is required to achieve the preset oscillation frequency.

A stud-holder (1) for a regulating member (10) of a horological movement, the regulating member (10) including an inertial mass, for example a balance (23), a balance spring (25) including a strip (2) wound about itself in several turns, and a balance cock (22), the stud-holder (1) including a main body (31) intended to be mounted on the balance cock (42), and a stud (34) mounted on the main body (31) in a first direction, wherein the stud-holder (1) includes an arm (5) extending from the stud (34), the arm (5) being directed in a second direction under the main body (31), the second direction forming a non-zero angle with the first direction, so as to pass at least in part beneath a balance spring (25) held by the stud (34), when the stud-holder (1) is mounted on the regulating member (10).

The present application relates to a supporting device for a balancing spring in a differential pressure transmitter and a differential pressure transmitter, which comprises an inner sleeve and a balancing spring arranged in the inner sleeve, wherein the balancing spring extends from the inner sleeve, and the extending portion is used to be connected to a balancing diaphragm, and the balancing spring contacts the inner surface of the inner sleeve, and the inner sleeve is made of polyetheretherketone, and the balancing spring supports the balancing diaphragm. The inner sleeve supports the balancing diaphragm, and the inner sleeve is made of polyetheretherketone, which has a self-lubricating property. When the balancing spring contacts the inner sleeve, there is no need to apply grease to the inner sleeve, so as to reduce the friction between the balancing spring and the inner sleeve.

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.

The utility model discloses a novel spring type pressure gauge, which relates to the technical field of pressure monitoring and comprises a shell, a lining is arranged in the shell, a dial plate is mounted on the lining in a matched manner, a bottom plate is fixedly mounted in the shell, a limiting seat and a positioning seat are arranged on one side of the bottom plate, a gear fixing seat is mounted on one side of the positioning seat in a matched manner, and a spring is arranged on the gear fixing seat. A transmission gear is installed between the gear fixing base and the bottom plate in a matched mode, a pointer is fixedly matched with the upper end of the transmission gear, a hairspring is installed on the lower side of the bottom plate in a matched mode, and the hairspring and the transmission gear are arranged in a matched mode. According to the utility model, a copper pipe pressure gauge with high requirements is abandoned, and the spring is adopted, so that the pressure gauge is low in selling price, has good impact resistance and adaptability, and can be put into use by replacing the corresponding spring when the error is too large after the pressure gauge is used for a period of time, thereby greatly reducing the maintenance cost of the pressure gauge.

A mechanical movement impact resistance testing tool comprises a test support, a test base plate, a pendulum clamp, a shock absorber unit, and a position limiting assembly. The test support is provided with at least one mounting hole. The test base plate is fixed in the mounting hole. The upper surface of the test base plate is provided with a groove for receiving a balance wheel. The bottom surface of the groove is provided with a recess for receiving two discs. The bottom surface of the recess is provided with a middle hole for inserting the lower shaft tip of the balance shaft. The bottom surface of the recess is provided with a positioning hole for inserting a disc nail. The pendulum clamp is fixed to the test base plate and forms a cantilever above the groove. The shock absorber unit includes a shock absorber mounted on the cantilever. The lower surface of the shock absorber is provided with a socket for allowing the upper shaft tip of the balance shaft to enter the center hole of the shock absorber. The position limiting assembly includes an outer stud fixedly connected to the shock absorber and an inner clamp. The bottom of the outer stud is provided with a first slit for receiving the end of a hairspring, and the bottom of the inner clamp is provided with a second slit for receiving the outermost arc portion of the hairspring. An assembly method for the mechanical movement impact resistance testing tool is also disclosed.

The utility model relates to a watch movement and a watch. The watch movement comprises a mechanical resonator composed of a balance wheel and a balance spring; means for setting the oscillation frequency of the mechanical resonator; and a mechanism for setting a guide mark on the mechanical resonator. The moving member of the setting device includes a mechanism for attaching the outer end portion of the hairspring and a mechanism for defining the effective length of the hairspring. The mechanism for varying the effective length includes a first gear carried by the moving member and a first tooth arranged along the outer end portion of the hairspring, the first gear meshing with the first tooth. The fastening mechanism retains the outer end portion by friction so that the first gear can drive the outer end portion via the first teeth and thus change the effective length of the hairspring. The first gear is in meshing relationship with a second gear that is integral with the resonator support such that when the outer end portion undergoes angular displacement in a selected direction relative to the moving member, the moving member is simultaneously angularly displaced by a corresponding angular distance in an opposite direction.

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.

The invention relates to a speed regulating mechanism (1) for a timepiece movement, the speed regulating mechanism (1) comprising: an inertial mass, such as a balance wheel (23), and a hairspring (25) comprising a strip (2) wound by a plurality of turns, the speed regulating mechanism comprising an actuation system for regulating the travel time difference of the speed regulating mechanism (1), the actuation system comprising an actuator (30) mechanically connected to the hairspring (25), the travel time difference of the speed regulating mechanism can be changed through the displacement of the actuator, the actuator (30) comprises a hook part (39) jointed with the hairspring (25), and the rigidity of the hairspring (25) can be changed through the displacement of the actuator (30).

To provide a stud that is excellent in manufacturing efficiency and can prevent fall-off of an adhesive.SOLUTION: A stud includes a support part having a columnar shape, and a stud support provided on the support part and having a slit part for holding and fixing a hair spring. The stud support has a truncated cone shape centered on a center line passing through the center of the column. A groove forming constriction on an outer periphery is provided between the support part and the stud support. The slit part is a notch formed from a top face toward a bottom face of the stud support in the truncated cone shape, and is formed into a part of the groove.SELECTED DRAWING: Figure 5

1. A method for testing a hairspring or a hairspring blank configured to form a hairspring, the hairspring having to have at least one predetermined expected resonant frequency, the test method comprising the steps of: a. applying a vibrational excitation to the hairspring or hairspring blank, the vibration excitation varying over time to cover a predetermined frequency range; b. identifying at least one characteristic of a resonant frequency of the hair spring or hair spring blank, such as a resonant peak, during or in response to vibrational excitation over a predetermined frequency range; c. subjecting the resonant frequency characteristic determined in step b to a prediction machine to determine whether the hair spring or hair spring blank is affected by a defect.

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.

The utility model provides an automobile horn air bag hairspring pressing force and pressing stroke detection device comprising a rack, the rack is provided with a rotating disc, the rotating disc is provided with at least one positioning carrier, the positioning carrier comprises a supporting seat, the bottom of the supporting seat is provided with a first contact pin group, and the first contact pin group is provided with a second contact pin group. A jacking mechanism is arranged at the position, corresponding to the positioning carrier, of the lower portion of the rotary disc, the output end of the jacking mechanism is connected with a second pin set, and the jacking mechanism drives the second pin set to ascend to be electrically connected with the first pin set. According to the device, the positioning carrier is placed on the turntable, and the liftable second contact pin group is arranged at the lower part of the turntable, so that when the carrier rotates to a preset station, butt joint can be realized, and when a horn air bag hairspring assembly is pressed, a contact at the lower part of the assembly can be conducted with a conduction column and a power supply, so that a structure mounted on a steering wheel is simulated by pressing sound; and a pressure sensor and a displacement sensor which are arranged on the pressing device are matched, so that the pressing force and the stroke can be detected.

Provided is a mechanical timepiece (1) in which rotation is maintained even when a torque caused by a spring force of a hairspring (32) is decreased. The mechanical timepiece (1) includes a power spring (11), a balance wheel (31), a hairspring (32), a permanent magnet (41), a coil (43), a soft magnetic core (42), and rate adjustment means (40). The permanent magnet (41) is arranged so that, at a position of 0° under a state in which the hairspring (32) is brought to a neutral position of elastic deformation thereof, an S-pole portion (412) is opposed to a first end portion (421a) with a first interval and an N-pole portion (411) is opposed to a second end portion (422a) with a second interval, and, at a position of 180°, the S-pole portion (412) is opposed to the second end portion (422a) with a third interval and the N-pole portion (411) is opposed to the first end portion (421a) with a fourth interval. The permanent magnet (41) is arranged so that the second interval is smaller than the first interval, and a difference between the fourth interval and the third interval is smaller than a difference between the first interval and the second interval.