CN2120354U - Electronic quartz governer - Google Patents

Abstract

The utility model relates to a quartz electromechanical escape speed regulator, which uses a quartz resonator as a timing signal source, uses a swinging electric motor as an electromechanical changeover mechanism, controls a gear train spring through an escapement, and rotates a recording mechanism to carry out timing. A timing device, which is designed by using the speed regulator, has the advantages of high precision of travel time, high output torque of a working shaft, long continuous working time, thin outer diameter of a machine core, reliable working, etc. The utility model is a renewal product for the timing device of a pressure meter and the timing device of a flow meter. The utility model can also be used in a time recording mechanism used for meteorology.

Description

Electronic quartz governer

The utility model relates to the escapement speed regulator in a kind of timer.

Use escapement hairspring escapement speed regulator with timer under the existing oil well more.It as the energy, transmits torque to escapement by train with flexible members such as clockwork spring or springs, by escapement to escapement hairspring vibrational system makeup energy.In this simultaneously, the periodic wobble of escapement is converted to the rotation of train or recording mechanism again by escapement.The clockwork spring moment of this mechanical timer is except being used to drive recording mechanism rotates, and must consume in the swing of the rotation of train and escapement.100 hours mechanical timer of a kind of work, be used for the former the not enough clockwork spring moment of output torque 40%, the latter then surpasses 60%.If continue to prolong the working time of timer, will give to manufacture and design and bring very big difficulty.

Secondly, the degree of stability in the cycle (or frequency) of escapement hairspring vibrational system is low, and the time error of walking of timer reaches about 1%.Moreover the tautochronism of escapement hairspring vibrational system is poor, and along with clockwork spring moment descends, the recording mechanism loading moment changes, the influence of factors such as train transmission quality change, the fluctuation that brings away time error.

Quartz electronic clock and watch had appearred in recent years, it is as the energy with battery,, to rotation, drive train, pointer or recording mechanism simultaneously and rotate as timing signal with the oscillation frequency of quartz (controlled) oscillator through the processing generation time pulsed drive stepping motor rotor folk prescription of electronic circuits such as frequency divider.The advantage of this clock is the timekeeping performance height, and relative error is less than 0.001%.But,, be difficult to drive recording mechanism and rotate then because the stepper motor output torque is little if it is applied to the down-hole timer.Though by increasing the motor output torque, approach such as increasing battery capacity can overcome above-mentioned deficiency, can cause overall dimensions to expand, structure does not allow.So quartz clock is not applied in the timer of device for subsurface measuring as yet.

The purpose of this utility model is to create a kind of novel speed regulator---electricity quartz speed regulator.Utilize the timer of this speed regulator design to drive the recording mechanism rotation with clockwork spring, as the timing signal source, the motor swing is swung in the conversion rear drive with quartz (controlled) oscillator, and swing-rotor is added with mechanical force moment M by escapement control _LThe escape wheel one-directional rotation, thereby reach control train clockwork spring and the accurate velocity of rotation of output shaft.This crystal chronometer is big except the output torque that promptly has mechanical timer, have again outside the high advantage of the timekeeping performance of quartz clock, also having can long-play (greater than 380 hours), reliable operation, it is little to stop the clock rate, the thin remarkable advantages such as (φ 20mm) of timer external diameter.Thereby make the measuring accuracy raising of the device for subsurface measuring match with this timer, functional reliability increases, and the one-shot measurement time lengthening satisfies the needs of well measurement.

Electricity quartz speed regulator with CMOS integrated circuit (CMOS IC), is swung motor by quartz resonator, clock, escapement, and compositions such as battery are seen Fig. 1 frame of broken lines.Then form crystal chronometer after being furnished with train and clockwork spring.

The electricity quartz speed regulator structural drawing as shown in Figure 2.It is by escape wheel parts 6, escapement lever parts 7, and rotor part 8, stator 9, coil 11, rotor limited block 14, circuit board module 10, battery case parts 12, battery 13, train wheel bridge parts 2, parts such as lower plate parts 1 grade is in addition formed.Wherein circuit board module is welded with quartz resonator, CMOS IC, and components and parts such as electric capacity, it and battery plus-negative plate join, and the output terminal of CMOS IC joins with the swing motor coil.Rotor part, stator, coil and rotor positive stop are formed the swing motor.Rotor part contains armature spindle 8-1, rotor 8-2, and two disk 8-3, impulse pallet 8-4 constitutes.Escape wheel, escapement lever, two disks etc. are formed escapement.The effect of escapement axle tooth by the moment of clockwork spring through the train transmission, uses M _LExpression.

Quartz resonator on the circuit board module, components and parts such as phase inverter constitute quartz (controlled) oscillator among electric capacity and the CMOS IC, often select 32 for use at present, the quartz resonator of 768Hz and 4.194304MHz.The quartz oscillation frequency is through the frequency dividing circuit among the CMOS IC, and narrow pulse forming circuit and driving circuit are handled the back and formed the burst pulse time signal that positive negative pulse stuffing replaces mutually.Its cycle is to, positive negative pulse stuffing be spaced apart To/2, the positive negative pulse stuffing width is Tu, the positive negative pulse stuffing amplitude is near cell voltage.Waveform is shown in Figure 3.

The swing motor is seen Fig. 4, and rotor is a pair of utmost point permanent magnet of radial magnetizing, and stator can adopt a slice plug-in type (Fig. 4 (a)), pit type (Fig. 4 (b)), centering type (Fig. 4 (c)).When the coil no current, rotor NS pole orientation position of rest be equipped with two kinds may: the one, on the position that is parked in the magnetic resistance minimum under the effect of magnetic orientation moment (near the position of rotor magnetic pole and stator piece air-gap minimum) is A-A direction among Fig. 4.This position is called the magnetic balance position.The 2nd, rotor is stopped by rotor limited block 14, and pole orientation is in the B-B direction.This position is called restriction site.The A-A equilibrium position is finished by the electrode magnetic orientation, and the B-B restriction site is subjected to the rotor limited block to stop realization by the impulse pallet of rotor part.Restriction site B-B and center line angle are about 45 °.

Rotor magnetic pole is parked in A-A place, magnetic balance position when supposing the coil no current.As the positive pulse electric current I ₊Do the time spent, coil magnetic field acts on mutually with the rotor field, promotes the rotation of rotor clockwise direction, when the impulse pallet of rotor part is stopped by the rotor limited block till.This moment, rotor magnetic pole was in the B-B direction.Rotor turns over angle-φ o.After this act on the negative pulse electric current I _-, coil magnetic field promotes rotor (counterclockwise) rotation in the other direction.Outage back rotor is still got back to magnetic balance position A-A.Rotor turned over angle and was+φ o this moment.Act on pulse signal so repeatedly and realize rotor swing.

The course of work of electricity quartz speed regulator as shown in Figure 5.

(1) pulse signal is 0 o'clock, and coil current is 0, and the magnetic pole of rotor 8 is parked in A-A place, magnetic balance position.The prong of impulse pallet 8-4 and escapement lever 7 is thrown off.At escape wheel moment M _LEffect under, escape wheel teeth draws into pin (advance watt) 7-1, fork body 7 rests on the left limit nail 1-1.See Fig. 5 (a).

(2) when the effect positive pulse signal, coil forward current I ₊Magnetic field that produces and rotor field interaction, rotor magnetic pole by the A-A place by rotating counterclockwise, shown in Fig. 5 (b) hollow arrow.Meanwhile, impulse pallet enters prong and drives the rotation of fork body clockwise direction, shown in the figure filled arrows.Advance pin 7-1 and lift, begin to discharge escape wheel.Along with rotor continues rotation, advance pin and rise thereupon.Turn over full pin angle when pitching body, escapement lever discharges escape wheel fully, at M _LEffect under, escape wheel moves in the direction of the clock, as shown in Figure 5, hatched arrows is the escape wheel sense of rotation among the figure.

(3) pulse signal is O once more, and impulse pallet is stopped that by rotor right limit piece 14-2 rotor magnetic pole is parked in the B-B place.This moment escape wheel going out of being fallen of another tooth pin (go out watt) 7-2 blocks and the towing fork body leans against right limit and follows closely the 1-2 place.Compare with (1), after the effect positive pulse, rotor turns over angle of oscillation φ o counterclockwise, and escapement lever turns over about half tooth distance counterclockwise.See Fig. 5 (d).(4) effect undersuing, coil negative current I _-The magnetic field that produces promotes rotor and rotates with (2) reverse direction (clockwise direction).Impulse pallet drive this moment fork body rotates counterclockwise, and goes out pin and lifts, and discharges escape wheel, and escape wheel continues to clockwise rotate.See Fig. 5 (e).

(5) pulse signal is O, rotor and escapement lever restPose (1).Compare with (3), after the negative pulse effect, rotor is along putting clockwise-φ o angle of oscillation.Escape wheel still turns over about half tooth distance in a clockwise direction.

By on can draw, every pulsatile once signal, swing rotor discharge an escapement and turn over about half tooth distance.In one-period To, the rotor reciprocating swing each once, the escape wheel folk prescription is to turning over an angular pitch.

Produce overshoot phenomenon when left limit piece 14-1 is used for preventing rotor rotation, the restriction hunting range also can be used to control the electric motor starting angle.

This speed regulator can also be selected slip-type escapement or anchor escapement for use.The slips and the escape wheel band angle of attack or be not with angle of attack operate as normal reliably.

Circuit and the power consumption of swing motor are at 100～350 μ A.According to timer working time and the definite battery specifications and models of selecting of power consumption.

Electricity quartz speed regulator can reach following technical indicator:

Walk time error less than ± 0.01%.

Act on escape wheel moment scope 7 * 10 ^-7～7 * 10 ^-4Nm.

Scope in the time of can being designed to the walking of timer.Working time depends primarily on the load-carrying ability of swing motor in the several hrs scope, depend primarily on battery capacity in hundreds of hour scope, 4～400 hours generally speaking.

Operating temperature range :-30～+ 80 ℃.

Cross sectional dimensions can be put into the cylinder that internal diameter is φ 18mm.

The vibration and shock resistant ability is better than mechanical timer of the same type.

This speed regulator escape wheel moment can be 7 * 10 ^-7Work under the situation of Nm, so can reduce clockwork spring moment and main spring gauge.Thereby prolonged the serviceable life of timer, improved the functional reliability of timer.

To the product man of manufacturing machine timer, only need to change the escapement hairspring of mechanical timer into swing motor and circuit board, train is done indivedual adjustment just can become crystal chronometer with model change.Former tooling device change is little.

This speed regulator can be used for the pressure timer, and the flowmeter timer is in the meter record mechanism of the coordinates that take time such as weather instrument timer.

Adopt this speed regulator not only to improve the performance index of timer, and can be designed to small-bore (φ 20mm) long-time (180 or 360 hours) timer, exceed 250～500 yuan by every of this timer than mechanical timer and sell, produce 400, economic benefit can increase by 10～200,000 yuan.

Description of drawings:

Fig. 1 is a principle of work block scheme of the present utility model.

Fig. 2 is the transmission stretch-out view, among the figure, and 1-lower plate parts, 2-train wheel bridge parts, 3-one wheel component, 4-two wheel components, 5-three wheel components, 6-escape wheel parts, 7-escapement lever parts, 8-rotor part, 8-1-armature spindle, the 8-2-rotor, the two disks of 8-3-, 8-4-impulse pallet, the 9-stator, 10-circuit board module, 11-coil, 12-battery case parts, 13-battery, 14-rotor limited block.

Fig. 3 is swing motor drive signal oscillogram.To is the signal period among the figure, t _uBe pulse width.

Fig. 4 is a swing machine operation principle schematic of the present utility model.8-rotor part among the figure, 9-stator, 10-coil, 14-rotor limited block.

Fig. 5 is a principle of work synoptic diagram of the present utility model.Among the figure, 1-1-left limit nail, 1-2-right limit nail, 6-escape wheel parts, 7-escapement lever parts, 7-1-enter watt (advancing pin), and 7-2-goes out watt (going out pin), 8-rotor, the 9-stator, 11-coil, 14-1-rotor left limit piece, 14-2-rotor right limit piece.

Fig. 6 is an outside drawing among the embodiment.

Embodiment:

The time-meter movement that utilizes electricity quartz speed regulator and design such as Fig. 6 and shown in Figure 2.Fig. 6 is an outside drawing, and Fig. 2 is the transmission stretch-out view.

Movement physical dimension 72 * 17 * 13mm, cross sectional dimensions can be controlled within the φ 18mm.

Stator adopts a slice plug-in type, physical dimension 41 * 14 * 1mm, and the big gap between stator magnet polar arc and the rotor is 2.0mm, and little gap is 1.5mm, and material is 1J50.

Rotor diameter φ 6.3mm, endoporus 1.6mm, thickness 2.5mm, material Y30.

Coil turn 5100 ± 100, direct current resistance 400 Ω, enamel covered wire diameter phi 0.09mm.

45 ° of rotor limited block and center angles.

CMOS IC model 2744.

Quartz resonator φ 2 * 6 or φ 3 * 8, frequency 32,768KHz.

Capacitor C d=18pF, Cg ^*This electric capacity of=5～20pF(is used to adjust oscillator frequency).

Drive motor pulse To/2=1s, pulse width t _u=46.8s.

Battery SR44, physical dimension φ 11.6 * 5.4mm, voltage are 1.55V.

Escapement is a peg type.

The escape wheel number of teeth is 15.External diameter φ 9mm, internal diameter φ 7.7mm, drawing the angle is 2 °, profile of tooth can be pointed tooth or the band tooth angle of attack all can for two kinds.Band angle of attack effect circular diameter φ 8.5mm, facewidth 0.6mm.

Escapement lever pin diameter phi 0.3mm.

Impulse pallet diameter phi 0.8mm, effect circle R1.8mm.

Can reach technical indicator:

Walk time error less than ± 1 second/hour.

Power consumption is during less than 150 μ A(cell voltage 1.50V).

Operating voltage range: 1.40～3.50V.

Escape wheel bears the moment scope: 7 * 10 ^-7～7 * 10 ^-4Nm.

Battery serviceable life: more than 400 hours.

The time can be 10～400 hours when timer was walked.

Operating temperature range :-30～+ 80 ℃.

Claims (2)

1, a kind of escapement speed regulator of time set, comprise escape wheel parts (6), escapement lever parts (7), rotor part (8), stator (9), circuit board module (10), coil (11), battery case (12), battery (13), rotor limited block (14), it is characterized in that adopting the quartz resonator on the circuit board module (10), the quartz (controlled) oscillator that components and parts such as phase inverter among electric capacity and the CMOS IC constitute is as the timing signal source, and this signal source drives the swing of swing motor, and the rotor of swing is added with mechanical force moment M by escapement control _LThe escape wheel one-directional rotation, thereby reach the accurate velocity of rotation of control train clockwork spring and output shaft.

2, claim 1 described speed regulator is characterized in that the stator of swinging motor can adopt a slice plug-in type, also can adopt pit type or centering type; Escapement can adopt peg type, also can adopt slip-type or retrusive.

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