WO2015120767A1 - 一种陀飞轮倾斜于表盘面的传动机构 - Google Patents
一种陀飞轮倾斜于表盘面的传动机构 Download PDFInfo
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- WO2015120767A1 WO2015120767A1 PCT/CN2015/071284 CN2015071284W WO2015120767A1 WO 2015120767 A1 WO2015120767 A1 WO 2015120767A1 CN 2015071284 W CN2015071284 W CN 2015071284W WO 2015120767 A1 WO2015120767 A1 WO 2015120767A1
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- wheel
- wheeled
- tourbillon
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- splint
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- 230000005540 biological transmission Effects 0.000 claims description 53
- 239000010437 gem Substances 0.000 claims description 11
- 229910001751 gemstone Inorganic materials 0.000 claims description 9
- 230000033001 locomotion Effects 0.000 abstract description 16
- 230000035945 sensitivity Effects 0.000 abstract description 5
- 238000003754 machining Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 5
- 238000007689 inspection Methods 0.000 description 3
- 230000005484 gravity Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000011120 plywood Substances 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
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- G—PHYSICS
- G04—HOROLOGY
- G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
- G04B33/00—Calibers
- G04B33/08—Calibers in which the gear train is arranged in different planes, e.g. parallel or inclined to each other
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- G—PHYSICS
- G04—HOROLOGY
- G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
- G04B17/00—Mechanisms for stabilising frequency
- G04B17/20—Compensation of mechanisms for stabilising frequency
- G04B17/28—Compensation of mechanisms for stabilising frequency for the effect of imbalance of the weights, e.g. tourbillon
- G04B17/285—Tourbillons or carrousels
Definitions
- the present invention relates to a mechanical watch with a tourbillon, and more particularly to a transmission mechanism in which the tourbillon is inclined to the dial surface.
- a mechanical watch with a tilting tourbillon has appeared on the market, that is, the axis of rotation of the tourbillon bracket is inclined to the dial surface.
- the tourbillon watch is characterized in that the movement is changed from a linear transmission to a transmission with a certain angle in a certain part of the transmission chain of the original moving wheel to the balance wheel, and the bevel gear is usually used for the angle conversion.
- the advantage of the tilt-type tourbillon watch is that regardless of whether the watch is in a horizontal or vertical plane, the balance wheel is at an angle of less than 90° to the horizontal plane, which makes the friction loss of the plane and the facade close to each other, reducing the sensitivity of the movement to the position. Sex, which further enhances the accuracy of the watch's travel time.
- a mechanical watch with an inclined tourbillon is disclosed in WO Patent Publication No. 03/017009 A2 and the patent WO Patent Publication No. 2005/043257 A1.
- the tourbillon has two rotary axes of AB, and the intersection is at an angle, and the motive force passes.
- a pair of bevel gears namely the second wheel and the second pinion, transmit power to the tourbillon mechanism, so that the tourbillon can rotate around the B axis and revolve around the A axis, while moving at multiple angles under the driving of the two rotating shafts.
- the trajectory rotation the structure can theoretically more effectively offset the isochronous error caused by the gravity of the earth.
- the disadvantage is that the axis of the balance wheel forms a conical envelope, which requires a very large volume. Due to the characteristics of the bevel gear itself, the requirement of the bevel gear for the bevel gear is very high, which will affect the stability of the movement of the movement. .
- EP Patent Publication No. 1564608A2 discloses a tilting tourbillon having a structure similar to that of WO 03/017009 A2, in which a pair of bevel gears are arranged on the second wheel and the escapement pinion, in addition to the disadvantage of occupying a large space, the movement Sensitivity to bevel gear manufacturing design errors will be higher.
- a tilting pendulum core is disclosed in CN Patent Publication No. 101606108A and WO Patent Publication No. 2012/062659 A1. Since the axial dimension of the balance wheel is small, it can be changed to be meshed at any point on the main transmission chain. Achieved, the problem is that although the tilting wheel can improve the deviation of the different positions of the movement, the offset of the earth's gravity is still lacking on the same plane, and the chute and the inclined hole on the large plate are processed and inspected. The difficulty is relatively large, the position of the transmission hole and the concentricity of the splint are not easy to guarantee, and it is easy to adversely affect the stability of the transmission system.
- the problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a transmission mechanism in which the structure of the tourbillon is inclined to the dial surface.
- the technical solution adopted by the present invention is: a transmission mechanism in which the tourbillon is inclined to the dial surface, comprising: a strip box disposed between the upper clamping plate and the lower clamping plate; the lower clamping plate is provided with two wheel parts and fixed with a small clamping plate a small groove formed on the small plate, a middle plate is fixedly mounted on the inclined groove, a three-wheel member, a four-wheel member, a five-wheel member, a second pinion and a second wheel plate mounted on the middle plate; the barrel
- the transmission chain to the second gear is a five-stage transmission, and the two-wheel component and the three-wheel component include a pair of matched bevel gears, and the bevel gears are disposed in the second stage of the main transmission, and are transmitted in parallel by the barrels.
- the center gear which in turn drives the hour and minute wheels, displays the time.
- the three-wheeled splint is mounted with a three-wheeled component and a four-wheeled component with a top-pointed gemstone, and the second-wheeled plate carries a five-wheel component and a second pinion, and the tourbillon assembly is integrated with the second pinion.
- the two-wheel component comprises a small two-wheeled piece, a two-toothed shaft and a two-wheeled piece which are press-fitted together, the two-wheeled piece is engaged with the barrel;
- the three-wheeled part comprises a three-wheeled piece and a three-toothed shaft which are pressed together
- the three-toothed shaft and the small two-wheeled piece are a pair of bevel gears that mesh with each other to change the direction of the transmission chain;
- the four-wheel component includes a four-toothed shaft that is press-fitted into one body And the four-wheeled piece, the three-wheeled piece and the four-toothed shaft are engaged;
- the five-wheeled component comprises a five-wheeled piece and a five-toothed shaft which are pressed together, the four-wheeled piece meshes with the five-toothed shaft; the five-wheeled piece meshes with the second toothed
- the barrel is engaged with the center wheel; the center wheel is concentrically frictionally fitted with a minute wheel, and the cross wheel member comprises a cross-wheel piece and a spanning shaft which are press-fitted together, the minute wheel meshes with the cross-wheel piece, and spans the toothed shaft
- the wheel is engaged; the upper end of the minute wheel is mounted with a minute hand, and the upper end of the hour wheel is fitted with a needle.
- the hole is formed on the inclined groove with two holes perpendicular to the inclined groove, and the hole is provided with a bit nail tube.
- a hole corresponding to a hole in the bevel groove of the small plate and a transmission straight hole are formed on the middle plate; the gemstone is mounted on the middle plate with a three-toothed shaft, a four-toothed shaft, a five-toothed shaft and a second-toothed shaft .
- the three-wheeled splint cooperates with two bit nail tubes on the middle splint, and is fixed on the middle splint by screws.
- the three-wheel splint carries the gemstones on the three-toothed shaft and the four-toothed shaft.
- the second wheel piece is fixed to the middle plate by screws, and the second wheel piece carries the gemstone of the five-toothed shaft and the second-toothed shaft.
- the invention has the beneficial effects that: since the bevel gear is disposed in the second stage with a lower rate on the main transmission chain, the influence of the bevel gear on the stability of the movement of the movement is effectively reduced, and the sensitivity of the processing and assembly of the bevel gear is also reduced.
- Only the small splint has a bevel groove and a beveled hole, the parts are relatively small for easy processing and inspection; in addition, all the transmission holes in the mechanism are straight holes, and the conventional processing and inspection methods ensure the position and verticality of the transmission hole.
- the manufacture is good, the assembly is convenient, and the tourbillon mechanism which effectively guarantees the movement to obtain better travel time precision.
- FIG. 1 is a plan view showing a transmission mechanism of a tourbillon tilted to a dial surface according to the present invention
- FIG. 2 is an axial schematic view of a transmission mechanism of the tourbillon tilted to the dial surface
- Figure 3 is a perspective view of the transmission mechanism of the tourbillon tilted to the dial surface.
- Three-wheel splint 6 Bar box 7: Two-wheel part 8: Three-wheel part
- Tourbillon assembly 14 center wheel 15: minute wheel 16: hour wheel
- the bevel gear is characterized by low manufacturing precision and large vibration during operation, so the circumferential speed should not be too high. Since the watch mechanism is a precision instrument, the processing precision of the bevel gear and the transmission efficiency of the tooth shape have a great influence on the stability of the movement of the movement, and improper design will have a great influence on the travel time accuracy of the movement.
- the transmission mechanism of the tourbillon of the present invention inclined to the dial surface includes a barrel 6 disposed between the upper plate 1 and the lower plate 2; the lower plate 2 is provided with a two-wheel member 7 and a small splint 3; the small splint 3 is formed with a bevel groove, the inclined surface has two holes C1 and C2 perpendicular thereto, and each of the C1 and C2 is provided with a stud tube, and the middle splint 4 is fixedly mounted on the inclined groove
- the middle splint 4 is formed with a hole and a transmission straight hole which cooperate with the holes C1 and C2 on the inclined groove of the small plate; the middle plate 4 is fixed to the small plate 3 by screws; the middle plate 4 carries three wheel parts 8.
- the two-wheel member 7 includes a small two-wheeled piece 7c, a two-toothed shaft 7a and a second wheeled piece 7b which are integrally pressed together, and the two-wheeled piece 7b is meshed with the barrel 6 to drive the two-toothed shaft 7a to rotate, thereby driving small
- the two-wheeled piece 7c rotates clockwise
- the three-wheeled part 8 includes a three-wheeled piece 8b and a three-toothed shaft 8a that are press-fitted together, and the three-toothed shaft 8a and the small two-wheeled piece 7c are a pair of bevel gears that mesh with each other and change In the direction of the transmission chain, the two-toothed shaft 7a drives the three-toothed shaft 8a to rotate, thereby driving the three-wheeled piece 8b to rotate;
- the four-wheeled component 9 includes a four-toothed shaft 9a and a four-wheele
- the pinion 9a is engaged to drive the four-wheeled piece 9b to rotate;
- the five-wheeled component 10 includes a five-wheeled piece 10b and a five-toothed shaft 10a which are press-fitted integrally, and the four-wheeled piece 9b is engaged with the five-toothed shaft 10a to drive the five-wheeled piece 10b to rotate;
- the five-wheel piece 10b meshes with the second pinion shaft 11 to drive the tourbillon assembly 13 to rotate; the second pinion shaft 11 and the tourbillon assembly 13 are press-fitted integrally, and the middle clamp plate 4 is specifically mounted with a three-toothed shaft 8a, a four-toothed shaft 9a, and five teeth.
- the three-wheel splint 5 cooperates with the two bit nail tubes on the middle splint 4, and is fixed to the middle splint 4 by screws,
- the wheel splint 5 carries the three-toothed shaft 8a and the jewel of the shaft on the four-toothed shaft 9a;
- the second-wheel piece 12 is fixed to the intermediate plate 4 by screws, and the second-wheel plate 12 carries the five-toothed shaft 10a and the second-toothed shaft 11 a sharp jewel;
- the barrel 6 is engaged with the center wheel 14;
- the minute wheel 15 is concentrically frictionally integrated with the center wheel 14 and rotates clockwise;
- the yoke member 17 includes a nip roller 17b and an interdigitated tooth
- the shaft 17a is engaged with the pulley piece 17b, and meshes with the hour wheel 16 across the pinion 17a;
- the minute hand 18 is attached to the upper end portion of the minute wheel 15, and the needle 19 is
- the three-wheel component 8, the four-wheel component 9, the five-wheel component 10 and the tourbillon assembly 13 are all fixed by the three-wheel splint 5, the second wheel plate 12 and the middle splint 4 via corresponding bit pins and screws.
- the small plate 3 is further formed with a module which can be integrally mounted to the lower plate to engage the small second wheel 7c with the three-toothed shaft 8a.
- the two-wheel member 7, the three-wheel member 8, the four-wheel member 9, the five-wheel member 10, and the second-toothed shaft 11 are continuously rotated about their own axes, thereby
- the tourbillon assembly 13 is rotated clockwise about the axis AA at a speed of one revolution per minute, and the axis AA has an angle of less than 90° with the movement dial surface.
- the transmission ratio of the second pinion shaft 11 to the center wheel 14 is 60:1.
- the center wheel 14 rotates clockwise at a speed of one revolution per hour, and the center wheel 14 drives the minute wheel 15 by friction fit.
- the speed of one hour of the hour rotates clockwise and drives the minute hand 18 to indicate the time. Since the transmission ratio of the minute wheel 15 to the hour wheel 16 is 12:1, the hour wheel 16 rotates clockwise at a speed of one revolution every 12 hours and drives the hour hand. 19 indicates time.
- the difference between the present invention and the prior art is that the transmission chain of the barrel to the second gear is increased from the conventional three-stage transmission to the fifth-stage transmission, and the bevel gear is disposed in the second stage of the main transmission; the central gear is transmitted in parallel from the barrel.
- the hour and minute wheels are displayed to display the time; the middle splint and the small splint are arranged to make part of the transmission form an integral module.
- the advantage of this structure is: First, the barrel-to-second gear is a speed-increasing motion. According to the characteristics of the bevel gear itself, it is placed on the second stage of the main transmission at a lower rate, and the bevel gear is reduced as much as possible.
- the scope of protection of the present invention is not limited to the above specific example manner. According to the basic technical idea of the present invention, it is also possible to have substantially the same structural transmission to adjust the layout of the structure.
- the bevel gear or the bevel gear is disposed at any step on the main transmission, and other expressions can be used, and the object of the present invention can still be achieved.
- the implementation of the present invention can adopt multiple forms of the gyro.
- the flywheel, adding a differential structure can still achieve the object of the present invention; finally, the shape, position and number of changes of the splint of the present invention can still achieve the object of the present invention, as long as the person skilled in the art does not need to be creative. Labor, the embodiments that can be conceived, are all within the scope of protection of the present invention.
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Abstract
一种陀飞轮倾斜于表盘面的传动机构,包括设置在上夹板(1)和下夹板(2)之间的条盒(6);下夹板(2)上安装有二轮部件(7)并固定有小夹板(3);小夹板(3)上形成有斜面槽,斜面槽上固定有中夹板(4),中夹板(4)上安装有传动轮系、秒齿轴(11)和秒轮片(12);条盒(6)到秒齿轴(11)的传动链为五级传动,二轮部件(7)和三轮部件(8)中包含有一对相适配的锥齿轮,锥齿轮设置在主传动的第二级,由条盒(6)并联传出中心齿轮,进而带动时轮(16)和分轮(15)显示时间。由于锥齿轮设置在主传动链上速率较低的第二级中,有效减小了锥齿轮对机芯传动平稳性的影响,也降低了锥齿轮加工、装配的敏感性;机构中的传动孔都是直孔,保证了传动孔的位置度和垂直度,工艺性好、装配方便,有效保证机芯获得更优走时精度。
Description
本发明涉及一种带有陀飞轮的机械手表,特别是涉及一种陀飞轮倾斜于表盘面的传动机构。
目前,市场上出现了一种带有倾角陀飞轮的机械手表,即陀飞轮支架的旋转轴线倾斜于表盘面。该陀飞轮手表特点是机芯在原动轮到摆轮的传动链中的某一个环节由直线传动改为具有一定角度的传动,通常选用锥齿轮实现角度的转换。该倾斜类陀飞轮手表的优势在于无论手表处于水平面还是竖直面,其摆轮都与水平面呈一个小于90°的角度,使机芯平面与立面摩擦损耗接近,降低机芯对位置的敏感性,从而进一步提高手表的走时精准性。
WO专利公开号03/017009 A2及专利WO专利公开号2005/043257 A1中都公开了一种带有倾角陀飞轮的机械手表,陀飞轮有AB两个回转轴,且交叉呈一定角度,原动力通过一对锥齿轮即秒轮片和秒齿轴将动力传递给陀飞轮机构,使陀飞轮既能绕B轴自转又能绕A轴公转,同时在两个旋转轴驱动下以多个角度的运动轨迹转动,该结构理论上可以更有效地抵消由于地球引力所带来的等时性误差。但缺点是:摆轮的轴线形成圆锥形包络,需要非常大的体积,由于锥齿轮本身的特性,秒轮片为锥齿轮对加工装配的要求精度非常高,会影响机芯运转的平稳性。
EP专利公开号1564608A2中公开了一个倾斜陀飞轮,结构与WO 03/017009A2类似,该结构的一对锥齿轮设置在秒轮片与擒纵齿轴上,除了占空间大的缺点外,机芯对于锥齿轮制造设计误差的敏感度会更高。
CN专利公开号101606108A及WO专利公开号2012/062659 A1中公开的是一种倾斜摆轮机芯,由于其摆轮轴向尺寸较小,其在主传动链上任意环节改为锥齿啮合即可实现,存在的问题是尽管倾斜摆轮可以改善机芯不同位置的偏差,但在同一平面上对于地球引力的抵消还是有所欠缺,并且在大夹板上的斜槽和斜孔,加工和检验的难度都比较大,传动孔的位置度和夹板同心度不易保证,易对传动***的平稳性产生不利影响。
发明内容
本发明所要解决的问题是,克服已有技术的缺点,提供一种结构简单,工艺性好,便于加工的陀飞轮倾斜于表盘面的传动机构。
本发明采用的技术方案是:一种陀飞轮倾斜于表盘面的传动机构,包括,设置在上夹板和下夹板之间的条盒;所述下夹板上安装有二轮部件并固定有小夹板;所述小夹板上形成有斜面槽,斜面槽上固定安装有中夹板,安装在中夹板上的三轮部件、四轮部件、五轮部件、秒齿轴和秒轮片;所述条盒到秒齿轮的传动链为五级传动,所述二轮部件和三轮部件中包含有一对相适配的锥齿轮,所述锥齿轮设置在主传动的第二级,由条盒并联传出中心齿轮,进而带动时分轮显示时间。
所述三轮夹板上安装三轮部件和四轮部件的上轴尖的宝石,秒轮片承载了五轮部件和秒齿轴,与秒齿轴压合为一体的陀飞轮组件。
所述二轮部件包括压合为一体的小二轮片、二齿轴和二轮片,所述二轮片与条盒啮合;三轮部件包括压合为一体的三轮片和三齿轴,所述三齿轴与小二轮片为一对锥齿轮,相互啮合,改变传动链方向;四轮部件包括压合为一体的四齿轴
和四轮片,三轮片与四齿轴啮合;五轮部件包括压合为一体的五轮片和五齿轴,四轮片与五齿轴啮合;五轮片与秒齿轴啮合。
所述条盒与中心轮啮合;中心轮同心摩擦配合有分轮,跨轮部件包括压合为一体的跨轮片和跨齿轴,所述分轮与跨轮片啮合,跨齿轴与时轮啮合;分轮的上端部安装有分针,时轮的上端部安装有时针。
所述在斜面槽上形成有两个与斜面槽垂直的孔,孔上镶有位钉管。
所述中夹板上形成有与小夹板斜面槽上的孔相对应的孔和传动直孔;所述中夹板上安装有三齿轴、四齿轴、五齿轴和秒齿轴下轴尖的宝石。
所述三轮夹板与中夹板上的两个位钉管相配合,通过螺钉固定在中夹板上,三轮夹板承载三齿轴和四齿轴上轴尖的宝石。
所述秒轮片通过螺钉与中夹板固定在一起,秒轮片承载了五齿轴和秒齿轴上轴尖的宝石。
本发明的有益效果是:由于锥齿轮设置在主传动链上速率较低的第二级中,有效减小锥齿轮对机芯传动平稳性的影响,也降低了锥齿轮加工、装配的敏感性;只有小夹板有斜面槽和斜面位钉孔,零件比较小方便加工和检验;另外,机构中所有的传动孔都是直孔,常规的加工和检验方式保证了传动孔的位置度和垂直度,以及承载传动轮系的合板同心度,工艺性好、装配方便,有效保证机芯获得更优走时精度的陀飞轮机构。
图1为本发明陀飞轮倾斜于表盘面的传动机构的平面示意图;
图2为陀飞轮倾斜于表盘面的传动机构的轴向示意图;
图3为陀飞轮倾斜于表盘面的传动机构的立体示意图。
图中:
1:上夹板 2:下夹板 3:小夹板 4:中夹板
5:三轮夹板 6:条盒 7:二轮部件 8:三轮部件
9:四轮部件 10:五轮部件 11:秒齿轴 12:秒轮片
13:陀飞轮组件 14:中心轮 15:分轮 16:时轮
17:跨轮部件 18:分针 19:时针。
下面结合附图和具体实施方式对本发明作进一步详细说明:
根据机械设计手册的介绍,锥齿轮的特点是制造精度低,工作时振动较大,故圆周速度不宜过高。由于手表机构属于精密仪器,使得锥齿轮的加工装配精度、齿形的传递效率都对机芯传动的平稳性产生很大的影响,设计不当将对机芯的走时精度有很大的影响。
如图1至图3所示,本发明陀飞轮倾斜于表盘面的传动机构,包括,设置在上夹板1和下夹板2之间的条盒6;下夹板2上安装有二轮部件7和小夹板3;所述小夹板3上形成有斜面槽,其斜面上有两个与其垂直的孔C1和C2,且C1和C2上各镶有位钉管,斜面槽上固定安装有中夹板4,中夹板4上形成有与小夹板斜面槽上的孔C1和C2相配合的孔和传动直孔;中夹板4通过螺钉固定在小夹板3上;所述中夹板4上承载有三轮部件8、四轮部件9、五轮部件10、秒齿轴11和秒轮片12;三轮部件8和四轮部件9上安装有三轮夹板5,秒轮片12承载了五轮部件10和秒齿轴11,与秒齿轴11压合为一体的陀飞轮组件13;所述条盒6到秒齿轮11的传动链为五级传动,所述二轮部件7和三轮部件8中包含有一对相适配的锥齿轮,所述锥齿轮设置在主传动的第二级,由条盒6并联传
出中心齿轮,进而带动时分轮显示时间。
所述二轮部件7包括压合为一体的小二轮片7c、二齿轴7a和二轮片7b,所述二轮片7b与条盒6啮合,带动二齿轴7a旋转,进而带动小二轮片7c顺时针旋转;三轮部件8包括压合为一体的三轮片8b和三齿轴8a,所述三齿轴8a与小二轮片7c为一对锥齿轮,相互啮合,改变传动链方向,二齿轴7a带动三齿轴8a旋转,进而带动带动三轮片8b旋转;四轮部件9包括压合为一体的四齿轴9a和四轮片9b,三轮片8b与四齿轴9a啮合,带动四轮片9b旋转;五轮部件10包括压合为一体的五轮片10b和五齿轴10a,四轮片9b与五齿轴10a啮合,带动五轮片10b旋转;五轮片10b与秒齿轴11啮合,带动陀飞轮组件13旋转;秒齿轴11和陀飞轮组件13压合为一体,中夹板4上具体安装有三齿轴8a、四齿轴9a、五齿轴10a和秒齿轴11下轴尖的宝石;三轮夹板5与中夹板4上的两个位钉管相配合,通过螺钉固定在中夹板4上,三轮夹板5承载三齿轴8a和四齿轴9a上轴尖的宝石;秒轮片12通过螺钉与中夹板4固定在一起,秒轮片12承载了五齿轴10a和秒齿轴11上轴尖的宝石;所述条盒6与中心轮14啮合;分轮15与中心轮14同心摩擦配合为一体,并顺时针转动;跨轮部件17包括压合为一体的跨轮片17b和跨齿轴17a,所述分轮15与跨轮片17b啮合,跨齿轴17a与时轮16啮合;分轮15的上端部安装有分针18,时轮16的上端部安装有时针19。
值得指出的是,三轮部件8、四轮部件9、五轮部件10和陀飞轮组件13都是由三轮夹板5、秒轮片12和中夹板4通过相应的位钉管和螺钉固定在小夹板3上,进而形成一个模块,可以整体安装到下夹板上,使小二轮片7c与三齿轴8a啮合。
本发明一种陀飞轮倾斜于表盘面的传动机构的工作过程如下:
如图1至图3所示,在条盒6的带动下,二轮部件7、三轮部件8、四轮部件9、五轮部件10和秒齿轴11都绕着自身轴线连续旋转,进而使陀飞轮组件13绕轴线A-A以每分钟1圈的速度顺时针自转,轴线A-A与机芯表盘面有一个小于90°的夹角。秒齿轴11与中心轮14的传动比为60:1,在条盒6的带动下,中心轮14以每小时1圈的速度顺时针自转,中心轮14通过摩擦配合带动分轮15以每小时1圈的速度顺时针自转,并带动分针18指示时间,由于分轮15与时轮16的传动比为12:1,时轮16以每12小时1圈的速度顺时针自转,并带动时针19指示时间。
本发明与现有技术不同点在于:条盒到秒齿轮的传动链由常规的三级传动增加到五级传动,锥齿轮设置在主传动的第二级;由条盒并联传出中心齿轮,进而带动时分轮显示时间;设置了中夹板和小夹板使部分传动形成一个整体模块。此结构的优点是:首先,条盒到秒齿轮是增速运动,根据锥齿轮本身的特性,把他设置在主传动上速率较低的第二级,尽可能的减小锥齿轮对机芯传动平稳性的影响,也降低了锥齿轮加工、装配的敏感性;其次,只有小夹板有斜面槽和斜面位钉孔,零件比较小方便加工和检验,如有问题报废掉损失也不会太大;最后,所有的传动孔都是直孔,常规的加工和检验方式保证了传动孔的位置度和垂直度,以及承载传动轮系的合板同心度,而且工艺性好、装配方便。
值得指出的是,本发明的保护范围并不局限于上述具体实例方式,根据本发明的基本技术构思,也可以有基本相同的结构传动,对结构的布局进行调整。首先,本发明实施例在主传动上任意环节设置锥齿轮或者锥齿轮采用其他表现方式,依然可以实现本发明的目的;其次,本发明实施可以采用多个各种形式的陀
飞轮,增加一个差动结构,依然可以实现本发明的目的;最后,本发明实施小夹板的形状、位置和个数的改变,依然可以实现本发明的目的,只要本领域普通技术人员无需经过创造性劳动,即可联想到的实施方式,均属于本发明的保护范围。
Claims (8)
- 一种陀飞轮倾斜于表盘面的传动机构,其特征在于,包括,设置在上夹板(1)和下夹板(2)之间的条盒(6);所述下夹板(2)上安装有二轮部件(7)并固定有小夹板(3);所述小夹板(3)上形成有斜面槽,斜面槽上固定安装有中夹板(4),安装在中夹板(4)上的三轮部件(8)、四轮部件(9)、五轮部件(10)、秒齿轴(11)和秒轮片(12);所述条盒(6)到秒齿轮(11)的传动链为五级传动,所述二轮部件(7)和三轮部件(8)中包含有一对相适配的锥齿轮,所述锥齿轮设置在主传动的第二级,由条盒(6)并联传出中心齿轮,进而带动时分轮显示时间。
- 根据权利要求1所述的陀飞轮倾斜于表盘面的传动机构,其特征在于,所述三轮夹板(5)上安装三轮部件(8)和四轮部件(9)的上轴尖的宝石;秒轮片(12)承载了五轮部件(10)和秒齿轴(11),与秒齿轴(11)压合为一体的陀飞轮组件(13)。
- 根据权利要求1所述的陀飞轮倾斜于表盘面的传动机构,其特征在于,所述二轮部件(7)包括压合为一体的小二轮片(7c)、二齿轴(7a)和二轮片(7b),所述二轮片(7b)与条盒(6)啮合;三轮部件(8)包括压合为一体的三轮片(8b)和三齿轴(8a),所述三齿轴(8a)与小二轮片(7c)为一对锥齿轮,相互啮合,改变传动链方向;四轮部件(9)包括压合为一体的四齿轴(9a)和四轮片(9b),三轮片(8b)与四齿轴(9a)啮合;五轮部件(10)包括压合为一体的五轮片(10b)和五齿轴(10a),四轮片(9b)与五齿轴(10a)啮合;五轮片(10b)与秒齿轴(11)啮合。
- 根据权利要求1所述的陀飞轮倾斜于表盘面的传动机构,其特征在于,所述条盒(6)与中心轮(14)啮合;中心轮(14)同心摩擦配合有分轮(15),跨轮部件(17)包括压合为一体的跨轮片(17b)和跨齿轴(17a),所述分轮(15)与跨轮片(17b)啮合,跨齿轴(17a)与时轮(16)啮合;分轮(15)的上端部安装有分针(18),时轮(16)的上端部安装有时针(19)。
- 根据权利要求1所述的陀飞轮倾斜于表盘面的传动机构,其特征在于,所述在斜面槽上形成有两个与斜面槽垂直的孔,孔上镶有位钉管。
- 根据权利要求1所述的陀飞轮倾斜于表盘面的传动机构,其特征在于,所述中夹板(4)上形成有与小夹板斜面槽上的孔相对应的孔和传动直孔;所述中夹板(4)上安装有三齿轴(8a)、四齿轴(9a)、五齿轴(10a)和秒齿轴(11)下轴尖的宝石。
- 根据权利要求1所述的陀飞轮倾斜于表盘面的传动机构,其特征在于,所述三轮夹板(5)与中夹板(4)上的两个位钉管相配合,通过螺钉固定在中夹板(4)上,三轮夹板(5)承载三齿轴(8a)和四齿轴(9a)上轴尖的宝石。
- 根据权利要求1所述的陀飞轮倾斜于表盘面的传动机构,其特征在于,所述秒轮片(12)通过螺钉与中夹板(4)固定在一起,秒轮片(12)承载了五齿轴(10a)和秒齿轴(11)上轴尖的宝石。
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