CN2221227Y - Quick swing mechanism second clock - Google Patents

Abstract

The utility model relates to a novel quickly swinging mechanical second clock. The speed regulating system of a machine core part adopts a quickly swinging swing wheel hairspring mechanism (W), and has a vibration period of 0.3 second, and vibration frequency of 24000 times per hour; a second hand swivel 360 DEG every 30 seconds. The circumference surface of a clock dial (2) displays a time scale of 30 seconds, and a small minute disk (2a) displays 30 minutes. The rotary speed of the second hand is one time quicker than the existing mechanical second clock, and the time display precision is as high as 0.1 second, also one time higher; remarkable display features are convenient to measure tiny time intervals. The utility model utilizes universal components and standard components up to the hilt, and thus has low cost and convenient assembly and maintenance. The utility model is suitable for popularization and application in the laboratories of scientific research, sports, national defense, post telephone and telegraph universities, specialized colleges and secondary schools.

Description

A kind of novel fast pendulum machinery second

The utility model relates to the Chronograph timepiece that measurement period is used, and relates in particular to the governing system of watch and clock movement and the clock dial of demonstration time scale.

Existing machinery is made up of core section, actuating element and clock dial, clock shell second, and core section comprises driving system, kinematic train, eacapement, governing system, and actuating element comprises starter mechanism, pause mechanism, continuous time movement, return-to-zero mechanism.The machinery vibration period in second is shorter than wrist-watch, can improve timekeeping performance, dwindle reading error.The second hand indicating graduation of clock dial was 60 seconds, and little minute clock dial indicating graduation of second hand axle top is 60 minutes; The vibration period of governing system is 0.6 second, and vibration frequency is per hour 12000 times (see Shantou, Guangdong Educational Instrument Factory 60 seconds mechanical seconds).Starting when this machinery can be realized away second, stop, return function such as zero, use more convenient.But, clock dial can only reach 0.2 second because showing the precision minimum of time; And from timing, little with the ordinary clock and watch difference, except having stop and returning the zero power energy, do not have outstanding feature, all restricted on use occasion and range of application, certain this moment marquis even can replace with ordinary clock and watch.

The purpose of this utility model just provides and a kind ofly can show more accurately, measure the small period, has than marked difference with ordinary clock and watch, is easy to distinguish novel mechanical second easy to use.

Task of the present utility model is finished as follows: design and produce a kind of novel fast pendulum machinery second, comprise core section, actuating element and clock shell (1), clock dial (2), core section is improved on existing mechanical architecture basics in second, the governing system of core section adopts the fast pendulum-type escapement hairspring mechanism (W) that is made up of fast pendulum escapement (32) and fast pendulum hairspring (36) coupling, time showing adopt on clock dial (2) circumference, divide equally 30 second scale, the form of on last little minute clock dial (2a) of clock dial (2) circumference, dividing equally 30 minute tracks, second hand (6) and minute hand (4) are under fast pendulum-type escapement hairspring mechanism (W) effect of movement, respectively in clock dial (2) and little minute clock dial (2a) corresponding time of last indication.The thickness of fast pendulum escapement (32) is 0.40mm～0.80mm in the fast pendulum-type escapement hairspring mechanism (W), and diameter is φ 16mm～φ 24mm, and is complementary with corresponding fast pendulum hairspring (36); Effective number of effective coils of fast pendulum hairspring (36) is 4 circles～8 circles, and is complementary with corresponding fast pendulum escapement (32).Balance staff (34) is identical second with existing machinery.The time showing scale of clock dial (2) was 30 seconds, and from 1 to 30 to have 30 numerals evenly distributed on periphery, and each numeral 1 second evenly is divided into 10 down scale lines between each numeral, and every scale mark is represented 0.1 second; Little minute clock dial (2a) time showing scale of clock dial (2) center second (6) axle top is 30 minutes, and evenly distributed on periphery, minimum scale is 0.5 minute; Minute hand (4) and second hand (6) clock dial (2) and little minute clock dial (2a) go up the corresponding corresponding period of indication.Governing system relies on the periodic swinging of fast pendulum-type escapement hairspring mechanism (W), makes escapement keep accurate and regular persistent movement, thereby the realization speed-regulating function reaches stable, accurately shows the purpose of time.The cycle of escapement hairspring mechanism vibrations is more little, frequency is high more, and timekeeping performance is just high more.So common people liken escapement hairspring mechanism the heart of clock and watch to, this has proved absolutely its importance.Improve escapement hairspring mechanism, be equivalent to have an operation, the timekeeping performance of clock and watch is played a key effect at cardia.According to designing requirement, the earlier selected vibration period T of the utility model ₀, press the computation period formula $T_0=2\mathrm{\π}\sqrt{\frac{J_b}{M_0}}$ Determine J in the formula _bBe the moment of inertia of escapement, M ₀Rigidity for hairspring.Generally speaking, $M_0=E\frac{b{h}^3}{12\×{10}^9{L}_g}$ Rigidity of hairspring M ₀Be directly proportional with module of elasticity E, width b, the thickness h of hairspring, and be inversely proportional to hairspring active length Lg.Substitution cycle formula obtains $T_0=2\mathrm{\π}\sqrt{\frac{12\×{10}^9{J}_b\·L_g}{E\·b\·h^3}}$ 。According to this formula, at vibration period T ₀With escapement moment of inertia J _bUnder the Xuan Ding situation,, just can guarantee to realize predetermined vibration period T as long as determine the material and the physical dimension of hairspring ₀Realize fast pendulum, make second hand (6) fast again, can in 30 seconds, go around, then must make vibration period T than existing machinery rotating speed in second ₀Shorten to 1/2nd (the corresponding quickening of vibration frequency is 2 times of existing machinery second) of existing machinery kind second.For reaching this purpose, under the constant situation of material, width, the thickness of hairspring, rely on the length L g that adjusts hairspring and the physical dimension of escapement to realize predetermined period T ₀In order to make full use of universal component, according to the existing machinery size and the space in second, through calculating the scope of application.In this scope, adjust, mate escapement hairspring structure, can realize needed fast pendular oscillation period T ₀The utility model is through design, calculating and improvement, the actual vibration cycle is 0.3 second, vibration frequency is per hour 24000 times, second hand (6) was gone around in 30 seconds, reach second hand (6) rotating speed and consistent, little minute hand (4) velocity of rotation of clock dial (2) periphery time showing scale in 30 second and the little minute also corresponding to purpose of clock dial (2a) time showing scale.The degree of accuracy of demonstration time doubles than existing machinery second, can reach 0.1 second.The starter mechanism of the driving system of the utility model core section, kinematic train, eacapement and actuating element, pause mechanism, the continuously structure in time movement, return-to-zero mechanism etc. and existing machinery second and act on identical.

Through above-mentioned design, improvement, trial-production, prove of the present utility model rational in infrastructure, punctual timing, stable, the vibration period is short, vibration frequency is high, and it was 30 seconds that second hand (6) takes a round, with ordinary clock and watch and existing machinery difference more significantly there is second, be easy to distinguish, easy to use, be convenient to measure the small period, display time interval is accurate, has realized scheduled target preferably.

Below accompanying drawing is illustrated:

Fig. 1 is the utility model overall appearance figure;

Fig. 2 is a cassette mechanism structure stretch-out view of the present utility model;

Fig. 3 is fast pendulum-type escapement hairspring mechanism of the present utility model (W) assembling synoptic diagram;

Fig. 4 is that the K of Fig. 3 is to view.

Among the figure: 1-clock shell; 2-clock dial; 2a-little minute clock dial; 3-pause button; 4-minute hand; 5-reset button; 6-second hand; 7-only pendulum springs; 8-pendulum bearing; 9-nose pile; 10-angle sheave; 11-guide wheel shaft; 12-plug-in strip parts; 13-second axle sleeve; 14-second hand parts; 15-cam parts; 16-minute needle part; 17-front plate; 18-time zero rod unit; 19-time zero nose pile; 20-torsion spring; 21-core frame; 22-clamping plate post; 23-rear plate; 24-great wheel assembly; 25-two wheel assemblies; 26-tricycle assembly; 27-four-wheel assembly; 28-escape wheel assembly; 29-pallet module; 30-hairspring stud; 31-index lever; W-fast pendulum-type escapement hairspring mechanism; 32-soon escapements; 33-pendulum nail; 34-balance staff; 35-hairspring inside stud; 36-soon put hairspring.

The utility model is described in further detail by embodiment at last;

Select the part assembly in part assembly, existing machinery second of common alarm clock and the part assembly of the utility model design improvement for use, cooperate the novel fast pendulum of assembling mechanical second together.The great wheel assembly of core section, tricycle assembly, escape wheel assembly, pallet module adopt the general part of common alarm clock; Two wheel assemblies, four-wheel assembly adopt the existing machinery same components in second; The starter mechanism of actuating element, pause mechanism, time movement and return-to-zero mechanism continuously are according to the existing machinery structure self manufacture in second, so that assemble better and cooperate; Clock dial and escapement hairspring mechanism design and produce according to of the present utility model, and clock dial adopts aluminum alloy sheet to make the disk of diameter phi 74mm, on 360 degree peripheries, evenly show 30 second time scale, mark from 1 to 30 totally 30 numerals; Again respectively be divided into 10 down scales between the display scale each second, and each down scale is represented 0.1 second, divides 300 down scales altogether.Drawing above the clock dial second hand axle has little minute clock dial, shows 30 minutes on its periphery, 60 scales that evenly distribute, and each scale is represented 0.5 minute.Escapement hairspring mechanism determines that through calculating coupling the thickness of fast pendulum escapement is 0.5mm, and diameter is φ 20.2mm; Effective number of effective coils of fast pendulum hairspring is chosen to be 6 circles; The installation site and the kind of drive are constant.The fast pendulum escapement hairspring mechanism that forms of coupling like this, its vibration period is 0.3 second, shortens half second than existing machinery; Vibration frequency is for per hour 24000 times, and is more fast again second than existing machinery.Drive second hand and little minute hand and show corresponding timing section on clock dial, it was 30 seconds that second hand takes a round on clock dial, and it is 30 minutes that minute hand took a round on the clock dial at little minute; Accuracy of timekeeping reaches 0.1 second, improves 1 times second than existing machinery, and shows clearly, is easy to distinguish.Because the utility model maximally utilised universal component and standard component, all adopt moulding with clock shell and pause button, reset button, so not only aesthetic in appearance, with low cost, and universalization, standardization level height, be convenient to assembling and maintenance.The utility model is suitable for using in the places such as laboratory in scientific research, physical culture, national defence, post and telecommunications, universities and secondary specialized schools and middle school, has promotional value and good social benefit widely.

Claims (4)

1, a kind of novel fast pendulum machinery second, comprise core section, actuating element and clock shell (1), clock dial (2), the governing system that it is characterized in that core section adopts the fast pendulum-type escapement hairspring mechanism (W) that is made up of fast pendulum escapement (32) and fast pendulum hairspring (36) coupling, time showing adopt on clock dial (2) circumference, divide equally 30 second scale, the form of on last little minute clock dial (2a) of clock dial (2) circumference, dividing equally 30 minute tracks, second hand (6) and minute hand (4) are under fast pendulum-type escapement hairspring mechanism (W) effect of movement, respectively in clock dial (2) and little minute clock dial (2a) corresponding time of last indication.

2, according to the described novel fast pendulum machinery of claim 1 second, the thickness that it is characterized in that fast pendulum escapement (32) in the said fast pendulum-type escapement hairspring mechanism (W) is 0.40mm～0.80mm, diameter is φ 16mm～24mm, and is complementary with corresponding fast pendulum hairspring (36).

3, according to the described novel fast pendulum machinery of claim 1 second, the effective number of effective coils that it is characterized in that fast pendulum hairspring (36) in the said fast pendulum-type escapement hairspring mechanism (W) is 4 circles～8 circles, and is complementary with corresponding fast pendulum escapement (32).

4, according to the described novel fast pendulum machinery of claim 1 second, it is characterized in that said clock dial (2) time showing scale was 30 seconds, from 1 to 30 to have 30 numerals evenly distributed on periphery, each numeral 1 second, evenly draw between each numeral 10 down scale lines are arranged, every scale mark is represented 0.1 second, little minute clock dial (2a) time showing scale of clock dial (2) center second (6) axle top is 30 minutes, evenly distributed on periphery, minimum scale is 0.5 minute, minute hand (4) and second hand (6) clock dial (2) and little minute clock dial (2a) go up the corresponding corresponding period of indication.

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