CN201662690U

CN201662690U - Wind spring shaft structure of large mechanical watch movement

Info

Publication number: CN201662690U
Application number: CN2010201447560U
Authority: CN
Inventors: 王钢; 田裕生; 赵纯杰; 潘英; 滕立发
Original assignee: Tianjin Seagull Watch Group Co Ltd
Current assignee: Tianjin Seagull Watch Group Co Ltd
Priority date: 2010-03-30
Filing date: 2010-03-30
Publication date: 2010-12-01
Anticipated expiration: 2020-03-30

Abstract

The utility model discloses a wind spring shaft structure of a large mechanical watch movement, which comprises an inner hook, a wind spring shaft and a wind spring. The center of the inner hook is provided with a square hole, the wind spring shaft is provided with a square tenon, and the square tenon is tightly matched with the square hole on the inner hook. The inner hook is also provided with a narrow slot, the end of the wind spring is embedded in the narrow slot of the inner hook, and the residual part of the wind spring is bent and then coiled on the curved surface of the inner hook. The utility model has the advantages that: since the convex structure of the inner hook of the original wind spring is changed into the embedded structure, the wind spring can be fixed reliably, can uniformly bear the force after being wound, and can not fall off the hook after being released; the wind spring mechanism can operate stably and reliably, and the wind spring shaft can be simply processed and easily assembled, thereby providing guarantee for promotion and mass production of large mechanism watches.

Description

A kind of bar axle construction of big machinery table movement

Technical field

The utility model relates to a kind of bar axle construction of stem-winder movement, particularly relates to a kind of embedded Mainspring type two body bar axle construction of big machinery table movement.

Background technology

Existing big machinery table movement generally is to utilize corresponding transmission principle and design, accurately amplify each the original design of part in the mechanical watch, the big machinery table is generally more than 12 times of general wristwatch, the appearance of big machinery table, decorateeed streetscape, be again a kind of timing tool simultaneously, the big machinery table has kept timekeeping performance preferably.But there is following shortcoming in existing big machinery table: the big machinery table is owing to be to amplify original mechanism in proportion, the output of its rotational energy of requirement and moment does not meet the rule that linear scaling amplifies when walking, after the size of having adjusted the clockwork spring part, power of being born during clockwork spring work and moment also will increase doubly a lot, and the clockwork spring behind the last bar is easy to distortion and breaks off relations under the effect of resilience moment.Fig. 1 is a movement bar axle construction floor map in the prior art; Fig. 2 is the axial synoptic diagram of movement bar axle construction in the prior art; Fig. 3 is a core section clockwork spring structural representation in the prior art.As shown in Figure 1 to Figure 3, the bar axle of timepiece movement is an integral structure in the prior art, wherein, be processed with on the bar axle 2 projection in collude 1, the front end of clockwork spring 3 is formed with a slotted hole A, colludes 1 (bossing) in this slotted hole A tangles during assembling.The curve of ordering to D counterclockwise from the C point on the bar axle is a spiral of Archimedes, and clockwork spring body 3 is along this helical rolling-in.But after amplifying timepiece movement in proportion, moment is doubled and redoubled, and main spring gauge also increases thereupon, when clockwork spring slowly be released into lax after because the effect of screen resilience makes clockwork spring the phenomenon that breaks off relations often occur.In addition, because increasing the back clockwork spring, main spring gauge becomes thick and heavy, wrist-watch assembly method assembling routinely, whole bar shaft size is excessive after colluding in the clockwork spring rolling-in hangs over can't be from the movement of packing into of the dead eye on the clamping plate, this causes the obstacle that can't go beyond with regard to the installation of giving monoblock type bar axle construction, influences the popularization and the sale of big machinery table product.

Summary of the invention

Technical problem to be solved in the utility model is: overcome the shortcoming of above-mentioned prior art, provide a kind of case structure reliable steadily, the bar axle construction of the big machinery table movement of convenient processing and installation.

The technical scheme that the utility model adopted is: a kind of bar axle construction of big machinery table movement comprises: in collude, bar axle and clockwork spring; The center of colluding in described is formed with a square hole, the side's of being formed with tenon on described the axle, described side's tenon with in the square hole wringing fit of colluding; Collude in described and be formed with a narrow groove, in the narrow groove that collude in embedding the end of described clockwork spring, remaining clockwork spring body bending hub disk is on the interior curved surface that colludes.

The narrow groove that collude in embedding the end of described clockwork spring is an interference fit.

The curved surface that colludes in described is made up of the circular arc of two sections decentraction.

The beneficial effects of the utility model are: owing to be improved to embeddedly by convex type, make clockwork spring fixing reliable with colluding in original clockwork spring, during the clockwork spring rolling-in stressed evenly, can not break off relations after clockwork spring loosens; The bar case structure operates steadily reliably, and the processing of this axle is simple, and assembling process is simple, for the popularization and the volume production of large-scale manipulator provides safeguard.

Description of drawings

Fig. 1 is a movement bar axle construction floor map in the prior art;

Fig. 2 is the axial synoptic diagram of movement bar axle construction in the prior art;

Fig. 3 is a core section clockwork spring structural representation in the prior art;

Fig. 4 is the axial synoptic diagram of the utility model model movement bar spindle unit;

Fig. 5 is the utility model model movement bar spindle unit floor map;

Fig. 6 is the utility model model movement bar axle synoptic diagram;

Fig. 7 colludes floor map for the utility model prototype in-core;

Fig. 8 colludes axial synoptic diagram for the utility model prototype in-core.

Among the figure:

1: in collude 2: bar axle 3: clockwork spring

Embodiment

Below in conjunction with the drawings and specific embodiments the utility model is described in further detail:

Fig. 4 is the axial synoptic diagram of the utility model model movement bar spindle unit; Fig. 5 is the utility model model movement bar spindle unit floor map; Fig. 6 is the utility model model movement bar axle synoptic diagram; Fig. 7 colludes floor map for the utility model prototype in-core; Fig. 8 colludes axial synoptic diagram for the utility model prototype in-core.To shown in Figure 8, the bar axle construction of the utility model big machinery table movement comprises as Fig. 4: in collude 1, bar axle 2 and clockwork spring 3; Wherein, bar axle 2 and in collude 1 and make respectively, assembling forms as one, and makes bar axle 2 assembling processes simple and convenient.1 the center of colluding in described is formed with a square hole, the side's of being formed with tenon 22 on described the axle 2, described side's tenon with in the square hole wringing fit of colluding on 1 connect, rotate together, this type of attachment can not throw switch and can not skid yet; Collude 1 curved surface in described and be made up of the circular arc of two sections decentraction, its radius is respectively R1 and R2, colludes 1 process in making and simplifies more; In collude on 1 the curved surface and be formed with a narrow groove 11, collude in the end of described clockwork spring 3 embeds in 1 the narrow groove 11, collude 1 narrow groove 11 in the end of described clockwork spring 3 embeds and be interference fit.Remaining clockwork spring body bending hub disk colludes on 1 the curved surface around interior.

The course of work to the embedded Mainspring type bar axle construction of the utility model big machinery table movement is illustrated below:

When winding up, bar axle 2 rotates and since in collude 1 and bar axle 2 by square feather joint, also rotate so square tenon colludes 1 in driving, clockwork spring 3 winds up by the counter clockwise direction rolling-in.Slowly discharge in lax process at watch spring 3, because the end interference fit of clockwork spring 3 colludes in being pressed in 1 the narrow groove 11 and certain bending angle is arranged, so clockwork spring 3 can not get loose or drop.Power when going up bar repeatedly stable walking also can reliably be provided.

This structure changes the fixed form of original clockwork spring, colludes in the clockwork spring to be improved to embeddedly by convex type, makes clockwork spring fixing reliable, does not break off relations after loosening; With original integral type bar axle be improved to independently the bar axle and in collude, and the two is connected, and then transmitting torque by square tenon, need only put into earlier during assembling and collude and clockwork spring, collude in again the bar axle being penetrated, simplified assembling process, for batch process provides guarantee.

Claims

1. the bar axle construction of a big machinery table movement comprises: in collude (1), bar axle (2) and clockwork spring (3); It is characterized in that: the center of colluding (1) in described is formed with a square hole, the side's of being formed with tenon (22) on described the axle (2), described side's tenon (22) with in collude square hole wringing fit on (1); Collude in described and be formed with a narrow groove (11) on (1), collude in the narrow groove (11) of (1) in embedding the end of described clockwork spring (3), and remaining clockwork spring body bending hub disk is on the curved surface of interior colluding (1).

2. the bar axle construction of big machinery table movement according to claim 1 is characterized in that: the narrow groove (11) that colludes (1) in the end of described clockwork spring (3) embeds is interference fit.

3. the bar axle construction of big machinery table movement according to claim 1 is characterized in that: the curved surface that colludes (1) in described is made up of the circular arc of two sections decentraction.