一种机械手表的三轴陀飞轮机构 技术领域 Three-axis tourbillon mechanism for mechanical watches
本发明涉及一种机械手表的陀飞轮机构,特别是涉及一种机械手表的三轴陀 飞轮机构。 The present invention relates to a tourbillon mechanism for a mechanical wristwatch, and more particularly to a three-axis tourbillon mechanism for a mechanical wristwatch.
背景技术 Background technique
陀飞轮的结构特点是将机械表最核心的调速机构在陀飞轮框架的带动下旋 转, 以抵消重力的影响, 专利公开号 CN102809919A公开了一种双轴陀飞轮, 它的 结构特点是内轴框架的旋转轴心线与外轴框架的旋转轴心线垂直设置,外框架的 旋转轴心线垂直于与机芯的轴心线,搭载调速机构的内轴陀飞轮在外轴框架的带 动下, 既以外轴轴心线公转又以内轴轴心线自转, 使得擒纵机构和摆轮游丝系统 的运动轨迹变得复杂。其运动轨迹与单轴陀飞轮相比变得更加复杂, 最大的优势 在于调速机构的运动轨迹越复杂,抵消地心引力的能力就会越明显, 最终的结果 是多轴陀飞轮机械表的走时精度可以被提升。但上述双轴陀飞轮的运动轨迹近似 柱状立体运动, 调速机构的运动轨迹只能在有限的立体空间变换。 The structure of the tourbillon is characterized by rotating the core speed governing mechanism of the mechanical watch under the tourbillon frame to counteract the influence of gravity. Patent Publication No. CN102809919A discloses a two-axis tourbillon, which is characterized by an internal shaft. The rotation axis of the frame is perpendicular to the axis of rotation of the outer frame, the axis of rotation of the outer frame is perpendicular to the axis of the movement, and the inner axle tourbillon with the speed governing mechanism is driven by the outer frame. , the outer shaft axis revolves and the inner shaft axis rotates, which makes the movement path of the escapement mechanism and the balance spring system complicated. The trajectory of the trajectory is more complicated than that of the single-axis tourbillon. The biggest advantage is that the more complex the trajectory of the governor mechanism, the more obvious the ability to offset the gravity, and the final result is the multi-axis tourbillon mechanical watch. The travel time accuracy can be improved. However, the motion trajectory of the above-mentioned two-axis tourbillon approximates the cylindrical three-dimensional motion, and the motion trajectory of the speed governing mechanism can only be transformed in a limited three-dimensional space.
为了更好地抵消来自于地球的重力影响, 目前已研发出一种三轴陀飞轮, 它 是在双轴陀飞轮结构基础上增加了第三根旋转轴,带来的效果是陀飞轮的运动轨 迹接近球形,使得陀飞轮内部的调速机构可以运动到任意的方向, 以此来提升克 服地球引力的能力。 但是, 现有三轴陀飞轮的结构存在以下缺陷: 首先, 第三轴 采用上下支承方式, 此种结构会占用更多的轴向空间, 使得表的厚度增加很多, 对于佩戴者来说很不方便; 其次, 第三轴采用滚珠轴承下支承方式。手表中使用 的专用滚珠轴承尺寸小, 而且薄, 并非普通滚珠轴承縮小所能实现的功能; 在陀 飞轮机构中的滚珠轴承要承载陀飞轮的高速运转,因此滚珠轴承的磨损是目前一 个无法克服的缺陷,一些能有效抵抗磨损的高精度滚珠轴承的制造难度和价格是 非常高的。 In order to better offset the influence of gravity from the earth, a three-axis tourbillon has been developed, which adds a third rotating shaft to the structure of the two-axis tourbillon, which brings the effect of the tourbillon. The trajectory is close to a spherical shape, so that the governing mechanism inside the tourbillon can move to any direction, thereby improving the ability to overcome the gravity of the earth. However, the structure of the existing three-axis tourbillon has the following drawbacks: First, the third shaft adopts an up-and-down support mode, which occupies more axial space, which increases the thickness of the watch, which is inconvenient for the wearer. Secondly, the third shaft adopts the support method of the ball bearing. The special ball bearings used in watches are small in size and thin, which is not the function that can be achieved by shrinking ordinary ball bearings. The ball bearings in the tourbillon mechanism are required to carry the high speed operation of the tourbillon, so the wear of the ball bearings is currently insurmountable. The drawbacks and the high difficulty and price of some high-precision ball bearings that are effective against wear are very high.
发明内容 Summary of the invention
本发明所要解决的技术问题是, 提供一种结构简单, 工艺性好, 便于加工 的三轴陀飞轮。 The technical problem to be solved by the present invention is to provide a three-axis tourbillon with a simple structure, good processability and easy processing.
本发明所采用的技术方案是: 一种机械手表的三轴陀飞轮机构; 包括, 固定 在驱动轮上的陀飞轮、外轴框架和差动机构; 所述驱动轮与动力输入轮啮合, 所 述陀飞轮的旋转轴心线与外轴框架的旋转轴心线垂直;介轮与固定于内轴陀飞轮 的秒齿轴啮合; 所述差动机构中包括有下支承方式的第三轴行星机构。 The technical solution adopted by the present invention is: a three-axis tourbillon mechanism of a mechanical watch; comprising: a tourbillon fixed to the driving wheel, an outer shaft frame and a differential mechanism; the driving wheel meshes with the power input wheel, The rotation axis of the tourbillon is perpendicular to the axis of rotation of the outer shaft frame; the intermediate wheel meshes with the second pinion fixed to the inner axle tourbillon; the differential mechanism includes a third axis planet with a lower support mode mechanism.
所述差动机构包括: 支架、行星轮、支架轴、行星机构、夹板和第二夹板柱; 所述行星轮与支架轴铆合为一体,所述支架轴设置在支架的宝石轴承上, 所述行 星轮与行星机构啮合, 所述夹板通过第二夹板柱固定在夹板上。 The differential mechanism includes: a bracket, a planet gear, a bracket shaft, a planetary mechanism, a clamping plate and a second clamping plate column; the planetary wheel is riveted integrally with the bracket shaft, and the bracket shaft is disposed on the jewel bearing of the bracket, The planet gears mesh with the planet mechanism, and the splint is fixed to the splint by a second cleat column.
所述行星机构包括, 第一夹板柱、 轴承架、 圆柱滚子轴、 圆柱滚子、 内环和 太阳轮; 所述行星轮与太阳轮啮合, 齿数比为 1 : 5-15, 所述驱动轮通过第一夹
板柱与轴承架固定为一体; 圆柱滚子均匀安装在圆柱滚子轴上, 圆柱滚子轴与轴 承架固定为一体,所述圆柱滚子能够自由旋转; 所述太阳轮与内环同轴心固定为 一体,所述圆柱滚子的下端部和外缘与内环的外缘台阶接触, 圆柱滚子的上端部 与太阳轮的内缘台阶间隙配合, 所述轴承架以内环的轴心线为轴能够灵活转动; 所述内环通过螺钉固定在夹板上; 陀飞轮和外轴框架以太阳轮的轴心线为轴旋 转。 The planetary mechanism includes: a first clamping plate column, a bearing frame, a cylindrical roller shaft, a cylindrical roller, an inner ring and a sun gear; the planetary gear meshes with the sun gear, the gear ratio is 1: 5-15, the driving Wheel through the first folder The column column and the bearing frame are fixedly integrated; the cylindrical roller is evenly mounted on the cylindrical roller shaft, the cylindrical roller shaft is fixedly integrated with the bearing frame, the cylindrical roller can be freely rotated; the sun wheel is coaxial with the inner ring The core is fixedly integrated, the lower end and the outer edge of the cylindrical roller are in step contact with the outer edge of the inner ring, and the upper end of the cylindrical roller is in clearance with the inner edge of the sun gear, and the bearing frame is at the axial center of the inner ring The wire is capable of flexible rotation of the shaft; the inner ring is fixed to the clamp plate by screws; the tourbillon and the outer axle frame are rotated about the axis line of the sun gear.
所述行星轮和太阳轮为锥形齿轮; 所述行星轮围绕太阳轮公转, 同时, 所述 行星轮以外轴框架的轴心线自转。 The planetary gear and the sun gear are bevel gears; the planetary gear revolves around the sun gear, and at the same time, the axis of the outer shaft frame of the planetary gear rotates.
所述行星轮为直齿轮, 所述太阳轮为冠形齿; 所述行星轮围绕太阳轮公转, 同时, 所述行星轮以外轴框架的轴心线自转。 The planetary gear is a spur gear, and the sun gear is a crown tooth; the planetary gear revolves around the sun gear, and at the same time, the axis line of the outer shaft frame of the planetary wheel rotates.
所述圆柱滚子为三个, 五个, 七个或九个; 圆柱滚子轴和轴承架通过螺钉 或二者直接压合为一体。 The cylindrical rollers are three, five, seven or nine; the cylindrical roller shaft and the bearing frame are directly pressed together by screws or both.
本发明的有益效果是: 由于采用下支承方式的行星机构作为第三旋转轴, 因此总体结构工艺性强, 特别是圆柱滚子轴承加工简单, 零件加工成本低, 适合 批量工业化生产; 三轴陀飞轮的运动轨迹从柱状升级为球状, 内部的调速机构为 立体式多角度运动, 运动轨迹更加复杂, 抵消地球引力的效果更加明显, 机械表 走时更加精准。 The beneficial effects of the invention are as follows: Since the planetary mechanism of the lower support mode is used as the third rotating shaft, the overall structural process is strong, especially the cylindrical roller bearing is simple in processing, the processing cost of the parts is low, and is suitable for mass industrial production; The movement track of the flywheel is upgraded from a column to a ball. The internal speed governing mechanism is a three-dimensional multi-angle motion. The motion track is more complicated, the effect of offsetting the earth's gravity is more obvious, and the mechanical watch is more precise.
附图说明 DRAWINGS
图 1为本发明三轴陀飞轮实施例 1的轴向示意图; 1 is an axial schematic view of Embodiment 1 of a three-axis tourbillon according to the present invention;
图 2为本发明三轴陀飞轮实施例 1的平面示意图; 2 is a plan view showing a first embodiment of a three-axis tourbillon according to the present invention;
图 3为本发明行星机构实施例 1的立体示意图; 3 is a perspective view of a first embodiment of a planetary mechanism according to the present invention;
图 4为本发明行星机构实施例 1的立体分解示意图; 4 is a perspective exploded view of Embodiment 1 of the planetary mechanism of the present invention;
图 5为本发明三轴陀飞轮实施例 2的轴向示意图。 Figure 5 is a schematic axial view of a second embodiment of a three-axis tourbillon according to the present invention.
图中 : In the picture:
1 :驱动轮 2 :支架 3 :行星轮 1 : Drive wheel 2 : Bracket 3 : Planetary wheel
4 :支架轴 5 :第一夹板柱 6 :轴承架 4: bracket shaft 5: first clamping column 6 : bearing frame
7 :圆柱滚子轴 8 :圆柱滚子 9 :内环 7 : Cylindrical roller shaft 8 : Cylindrical roller 9 : Inner ring
10 :夹板 11 :第二夹板柱 12 :太阳轮 10: splint 11: second plywood column 12: sun gear
13 :外轴框架 14 :内轴陀飞轮 15 :动力输入轮 13: outer shaft frame 14: inner shaft tourbillon 15 : power input wheel
16 :介轮 17 :秒齿轴。 16: Medium wheel 17 : Second pinion.
具体实施方式 detailed description
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: The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
如图 1 所示, 本发明机械手表的三轴陀飞轮机构是在公开号为 As shown in Fig. 1, the three-axis tourbillon mechanism of the mechanical watch of the present invention is disclosed in the publication number.
CN102809919A, 发明名称为 "机械手表的双轴陀飞轮机构" 的基础上的再创造, 有关双轴陀飞轮机构的具体结构本文不再赘述。 CN102809919A, The invention is based on the re-creation of the "two-axis tourbillon mechanism of a mechanical watch", and the specific structure of the double-axis tourbillon mechanism will not be described herein.
实施例 1 : 本发明机械手表的三轴陀飞轮机构, 包括, 固定在驱动轮 1上的 陀飞轮 14、 外轴框架 13和差动机构; 所述驱动轮 1与动力输入轮 15啮合, 所
述陀飞轮 14的旋转轴心线与外轴框架 13的旋转轴心线垂直, 陀飞轮 14每 1分 钟转动一周, 外轴框架 13每 2. 5分钟转动一周; 介轮 16与固定于内轴陀飞轮 14的秒齿轴 17啮合; 所述差动机构中包括有下支承方式的第三轴行星机构。 Embodiment 1 : A three-axis tourbillon mechanism of a mechanical wristwatch according to the present invention includes a tourbillon 14 fixed to a drive wheel 1, an outer shaft frame 13, and a differential mechanism; the drive wheel 1 meshes with a power input wheel 15, The rotation axis of the tourbillon 14 is perpendicular to the axis of rotation of the outer frame 13, the tourbillon 14 is rotated once every one minute, and the outer frame 13 is rotated every 2.5 minutes; the intermediate wheel 16 is fixed to the inner shaft. The second pinion 17 of the tourbillon 14 is engaged; the differential mechanism includes a third-axis planetary mechanism of a lower support type.
所述差动机构包括: 支架 2、 行星轮 3、 支架轴 4、 行星机构、 夹板 10和第 二夹板柱 11 ; 所述行星轮 3与支架轴 4铆合为一体, 行星轮 3为锥形齿轮; 所 述支架轴 4设置在支架 2的宝石轴承上,所述行星轮 3与行星机构啮合, 所述夹 板 10通过第二夹板柱 11固定在夹板上。 The differential mechanism comprises: a bracket 2, a planet gear 3, a bracket shaft 4, a planetary mechanism, a clamping plate 10 and a second clamping plate column 11; the planetary gear 3 is riveted integrally with the bracket shaft 4, and the planetary gear 3 is tapered Gears; the bracket shaft 4 is disposed on a jewel bearing of the bracket 2, the planet gear 3 meshes with a planetary mechanism, and the clamping plate 10 is fixed to the clamping plate by a second clamping plate column 11.
所述行星机构为下支承方式包括, 第一夹板柱 5、 圆柱滚子架部件、 内环 9 和太阳轮 12; 圆柱滚子架部件包括轴承架 6、 圆柱滚子轴 7、 圆柱滚子 8; 太阳 轮 12为锥形齿轮, 所述行星轮 3与太阳轮 12啮合, 齿数比为 1 : 3. 6, 此值表示 第三轴的旋转速度为每 9分钟转动一周, 此值的可选取范围是在 5-15之间; 所 述驱动轮 1通过第一夹板柱 5与轴承架 6固定为一体;圆柱滚子 8均匀安装在圆 柱滚子轴 7上, 圆柱滚子轴 7与轴承架 6固定为一体, 所述圆柱滚子 8能够自由 旋转, 圆柱滚子 8的个数可以根据设计的实际情况决定, 但要保证是单数, 如, 一般可设置 3, 5, 7, 9个, 本发明实施例采用 5个圆柱滚子; 所述太阳轮 12 与内环 9同轴心固定为一体,所述圆柱滚子 8的下端部和外缘与内环 9的外缘台 阶接触, 圆柱滚子 8的上端部与太阳轮 12的内缘台阶间隙配合, 需要注意的是 固定有 5个圆柱滚子 8的轴承架 6以内环 9的轴心线为轴可以灵活转动;所述内 环 9通过螺钉固定在夹板 10上;陀飞轮 14和外轴框架 13以太阳轮 12的轴心线 为轴旋转。 The lower mechanism of the planetary mechanism includes a first cleat column 5, a cylindrical roller frame member, an inner ring 9 and a sun gear 12; the cylindrical roller frame member includes a bearing frame 6, a cylindrical roller shaft 7, and a cylindrical roller 8 The sun gear 12 is a bevel gear, and the planetary gear 3 meshes with the sun gear 12, and the gear ratio is 1: 3. 6. This value indicates that the rotation speed of the third axis is one rotation every 9 minutes, and the value can be selected. The range is between 5-15; the driving wheel 1 is fixed integrally with the bearing frame 6 through the first clamping plate column 5; the cylindrical roller 8 is evenly mounted on the cylindrical roller shaft 7, the cylindrical roller shaft 7 and the bearing frame 6 is fixed in one piece, the cylindrical roller 8 can rotate freely, and the number of the cylindrical rollers 8 can be determined according to the actual situation of the design, but it is guaranteed to be singular, for example, generally 3, 5, 7, 9 can be set. In the embodiment of the present invention, five cylindrical rollers are used; the sun gear 12 and the inner ring 9 are integrally fixed concentrically, and the lower end portion and the outer edge of the cylindrical roller 8 are in step contact with the outer edge of the inner ring 9, the cylinder The upper end of the roller 8 and the inner edge of the sun gear 12 For the clearance fit, it should be noted that the bearing frame 6 to which the five cylindrical rollers 8 are fixed can be flexibly rotated with the axis of the inner ring 9 as an axis; the inner ring 9 is fixed to the clamping plate 10 by screws; the tourbillon 14 and the outer The shaft frame 13 is rotated about the axis of the sun gear 12 as an axis.
实施例 2: 行星轮 3为直齿轮, 太阳轮 12为冠形齿, 两者互相啮合形成垂 直传动关系;圆柱滚子轴 7和轴承架 6压合为一体。其他结构均与实施例 1相同, 在此不再赘述。 Embodiment 2: The planetary gear 3 is a spur gear, and the sun gear 12 is a crown-shaped tooth, and the two mesh with each other to form a vertical transmission relationship; the cylindrical roller shaft 7 and the bearing frame 6 are press-fitted into one body. Other structures are the same as those in Embodiment 1, and are not described herein again.
本发明机械手表的三轴陀飞轮机构实施例 1的工作过程说明如下: 动力输入轮 15带动驱动轮 1旋转。 由于驱动轮 1与轴承架 6相互固定, 并 且圆柱滚子架部件、 内环 9和太阳轮 12组成了圆柱滚子轴承, 被设置在驱动轮 1上的外轴框架 13和内轴陀飞轮 14以太阳轮 12的轴心线为轴旋转。 由于行星 轮 3与太阳轮 12是啮合关系, 行星轮 3围绕太阳轮 12公转, 同时以外轴框架 13的轴心线自转。 双轴陀飞轮的工作过程可参见专利号 CN102809919A "机械手 表的双轴陀飞轮机构"。在第三轴的驱动下内轴陀飞轮 14每 1分钟转动一周, 外 轴框架 13每 2. 5分钟转动一周,外轴框架 13每转动一周所用的时间可以为 2-10 分钟之间,第三轴的旋转速度为每 9分钟转动一周,此值的可选取范围是在 5-15 之间。 The operation of the three-axis tourbillon mechanism of the mechanical watch of the present invention is explained as follows: The power input wheel 15 drives the drive wheel 1 to rotate. Since the drive wheel 1 and the bearing frame 6 are fixed to each other, and the cylindrical roller frame member, the inner ring 9 and the sun gear 12 constitute a cylindrical roller bearing, the outer shaft frame 13 and the inner shaft tourbillon 14 are disposed on the drive wheel 1. The axis of the sun gear 12 is rotated about the axis. Since the planetary gear 3 is in meshing relationship with the sun gear 12, the planetary gear 3 revolves around the sun gear 12 while the axis of the outer frame 13 rotates. The working process of the two-axis tourbillon can be found in the patent number CN102809919A "Double-axis tourbillon mechanism of the robot table". The inner shaft tourbillon 14 is rotated once every one minute under the driving of the third shaft, and the outer shaft frame 13 is rotated once every 2.5 minutes, and the time taken for each rotation of the outer shaft frame 13 can be between 2 and 10 minutes. The triaxial rotation speed is one revolution every 9 minutes, and the value can be selected between 5-15.
本发明机械手表的三轴陀飞轮机构实施例 2的工作过程说明如下: 动力输入轮 15带动驱动轮 1旋转。 由于驱动轮 1与轴承架 6相互固定, 并 且圆柱滚子架部件、 内环 9和太阳轮 12组成了圆柱滚子轴承, 被设置在驱动轮 1上的内轴陀飞轮 14自转, 同时以太阳轮 12的轴心线为轴公转。
本发明由于第三轴的结构为下支承方式, 因此, 在提高走时精度的同时, 也未增加手表厚度, 依然保持手表的小巧, 美观; 另外, 第三轴总体结构工艺性 强, 特别是圆柱滚子轴承加工简单, 零件加工成本低, 适合批量工业化生产; 三 轴陀飞轮的运动轨迹从柱状升级为球状, 内部的调速机构为立体式多角度运动, 运动轨迹更加复杂, 抵消地球引力的效果更加明显, 机械表走时更加精准。 The working process of the three-axis tourbillon mechanism of the mechanical watch of the present invention is explained as follows: The power input wheel 15 drives the drive wheel 1 to rotate. Since the drive wheel 1 and the bearing frame 6 are fixed to each other, and the cylindrical roller frame member, the inner ring 9 and the sun gear 12 constitute a cylindrical roller bearing, the inner shaft tourbillon 14 disposed on the drive wheel 1 rotates while the sun The axis of the wheel 12 is the axis revolution. Because the structure of the third shaft is the lower support mode, the invention not only increases the thickness of the watch, but also keeps the watch small and beautiful while improving the travel time precision; in addition, the overall structure of the third shaft is strong, especially the cylinder. The roller bearing is easy to process, low in part processing cost, and suitable for mass industrial production. The trajectory of the three-axis tourbillon is upgraded from a column to a ball. The internal speed governing mechanism is a three-dimensional multi-angle motion, and the movement trajectory is more complicated, offsetting the gravity of the earth. The effect is more obvious, and the mechanical watch is more precise.
值得指出的是, 本实施例采用的是同轴式陀飞轮, 而本发明的保护范围并不 局限于上述具体实施方式,根据本发明的基本技术构思, 也可以采用基本相同的 结构传动, 而选用偏心式陀飞轮依然可以实现本发明的目的, 只要本领域普通技 术人员无须经过创造性劳动,即可联想到的实施方式,均属于本发明的保护范围。
It should be noted that the present embodiment uses a coaxial tourbillon, and the scope of protection of the present invention is not limited to the above specific embodiments. According to the basic technical idea of the present invention, substantially the same structure transmission can also be adopted. The object of the present invention can still be achieved by using an eccentric tourbillon, and any embodiment that can be conceived by those skilled in the art without creative labor is within the scope of the present invention.