CN101598926B - Planetary gear train of double-tourbillion mechanical watch - Google Patents
Planetary gear train of double-tourbillion mechanical watch Download PDFInfo
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- CN101598926B CN101598926B CN2009100695283A CN200910069528A CN101598926B CN 101598926 B CN101598926 B CN 101598926B CN 2009100695283 A CN2009100695283 A CN 2009100695283A CN 200910069528 A CN200910069528 A CN 200910069528A CN 101598926 B CN101598926 B CN 101598926B
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Abstract
The invention discloses a planetary gear train of a double-tourbillion mechanical watch; wherein, a planetary gear gasket is fixed with a planetary gear shaft by a planetary screw; the matching screwing direction of an internal thread of the planetary gear shaft and an external thread of the planetary screw is identical with the direction of the torque of the planetary gear; planetary gear sets are arranged on a second central gear gasket; a first central gear gasket is meshed with the planetary gear gasket; a third central gear shaft and a third central gear gasket are coaxially arranged on a second central gear shaft; the third central gear shaft is meshed with the planetary gear shaft. The planetary gear train has the benefits that as four planetary gears are arranged, the moment which is oscillated by a planetary carrier and generated by meshing of the planetary gear and an input shaft can be counteracted in four directions; the structure all adopts external gearing and is convenient in processing, in particular, the planetary carrier is used as one of the input gears, thereby reducing the overall axial dimension of the planet structure and the thickness of a clock mechanism; in addition, the screw is used for fixing the planetary gear gasket and the planetary gear shaft so that the planetary gear gasket and the planetary gear shaft can be correctly assembled and reliably meshed when the planetary mechanism is assembled, thereby ensuring that the relative positions of the arranged gear teeth are not changed.
Description
Technical field
The present invention relates to a kind of mechanical watch that has the top flywheel, particularly relate to a kind of planet circular system that has the mechanical watch of two top flywheels.
Background technology
So-called top flywheel is a kind of device that reduces isochronal error in the mechanical watch, this apparatus features is that balance and hair spring system and escapement are placed in the framework, in self-operating, can also rotate, thereby reduce to greatest extent because the clock and watch site error that terrestrial gravitation caused has improved timekeeping performance with framework.The device that the axis of balance and hair spring system is overlapped with the rotation of framework (referenced patent " wrist-watch coaxial-type rotation escapement the speed adjusting gear "-patent No.: ZL200720096902.5) call " coaxial-type top flywheel " wherein; The device that is commonly referred to " CARUSO " (with reference to EP patent publication No. 846987) that both axis are not overlapped calls " centering type top flywheel ".
At present, a kind of wrist-watch that two top flywheels is positioned over simultaneously a movement has appearred in the top flywheel wrist-watch.The characteristics of this top flywheel wrist-watch are that the driving system in the movement passes to two top flywheels by the differential gear train that train especially wherein is provided with respectively with energy, and the velocity of rotation of two top flywheels flows to indication mechanism by the differential gear train that is provided with in the train after average again and correctly shows the time, the advantage of this type of top flywheel wrist-watch is walking time error and can reducing after average through the differential gear train algebraic sum of two top flywheels, thereby has further improved the accuracy when walking.
Design feature according to two top flywheels, the problem that should be noted that is: according to the characteristic of the differential attachment of mechanical principle introduction is that it not only can decompose motion or power but also can resultant motion or power, thus therefore utilize it can former moving system, demonstration system, power train well connect together with two top flywheels and form complete movement.But, the maximum drive moment that the former moving system of this type of movement need offer two top flywheels will be far longer than the needed maximum moment of the single top flywheel of driving, this just makes that the differential gear train that connects former moving system and two top flywheels bears bigger moment, and gives meeting loss of energy in the process of two top flywheels at outputting power.The performance index that the planetary differential train has a key are transmission efficiency.Under the situation of bearing big load, the structural stability of differential gear train, load-bearing capacity, these factors of kinetic balance will produce very big influence to the transmission efficiency of differential gear train and the stationarity of torque transmitting, and it is undesired even can't work to design the improper planetary differential train wheel operation that will cause.
Disclose a driving wheel on barrel among the CH patent publication No. 694833A5 and driven two top flywheels rotations of differential system driving by train, the characteristics of its differential gear train are relatively simple for structure.But shortcoming is to have adopted the single file star wheel structure, does not add load balancing mechanism.This must cause planetary carrier to be subjected to force unbalance, owing to the existence in gap movingly produces bigger inclination, further worsen the stressed and cooperation situation between each gear of planet circular system, between the operation process middle gear, wheel between centers friction force increases, its consequence is that power consumption is too much, the efficient of exporting to two top flywheel energy is lower, and output torque is not steady.Because nearer stressed big from going barrel, long-term work easily produces wearing and tearing, even can't operate as normal.
Disclose train among the CH patent publication No. 695196A5 and driven two top flywheels rotations of differential system driving, equal support method in the planet circular system is particularly disclosed, being provided with three planetary gears exactly on planet carrier meshes with two output wheels simultaneously, and be that engagement is formed with a pair of external toothing in one pair, not only rotation but also revolve round the sun of three planetary gears when wheel for inputting drives planet carrier and rotates, thus and drive two output wheels and rotate and drive the reverse rotation of two top flywheels.This structure can effectively be offset the moment that planet carrier swings up and down, planet carrier is rotated more stably, avoided too much energy loss, and the shortcoming of this structure is: at first, it is a lot of that it has adopted inside and outside two kinds of engagement systems to make that its axial dimension increases simultaneously, and because complex structure causes processing and the also corresponding difficulty that increased of assembling; Secondly, for wrist-watch, make that the manufacturing of internal tooth processed complex is difficult because the limitation module of self is very little.
Summary of the invention
Technical matters to be solved by this invention is the shortcoming that overcomes prior art, provides a kind of simple in structure, good manufacturability, and two tourbillon movements of being convenient to process especially are convenient to the planet circular system structure that the axial dimension assembled is less, load balancing mechanism is set.
The technical solution adopted in the present invention is: a kind of planet circular system of double-tourbillion mechanical watch comprises: first centre pinion, the first centre wheel sheet, planetary gear sheet, planet tooth axle, planet screw, the second centre wheel sheet, second center-wheel arbor, the 3rd centre pinion, the 3rd centre wheel sheet; Described planetary gear sheet and planet tooth axle are one by the planet screw retention, planet tooth axle internal thread screws direction with the screw thread that external thread cooperated of planet screw and the suffered moment direction of planetary gear is consistent, and described planetary gear set is arranged on the described second centre wheel sheet; The described first centre wheel sheet and the first centre pinion pressing are one, described first centre wheel sheet and the engagement of planetary gear sheet; Described the 3rd centre pinion and the 3rd centre wheel sheet pressing are one, and coaxial being arranged on second center-wheel arbor, the 3rd centre pinion 4a and the engagement of planet tooth axle; The described second centre wheel sheet and the second center-wheel arbor pressing are one.
Evenly be provided with two to eight planetary gear set on the described second centre wheel sheet, and drive the second centre wheel sheet and the rotation of the 3rd centre wheel sheet by planetary gear set.
On the described second centre wheel sheet four planetary gear set are set evenly, and drive the second centre wheel sheet and the rotation of the 3rd centre wheel sheet by four planetary gear set.
Four planetary gears that are provided with on the planet carrier the invention has the beneficial effects as follows: owing to can be offset the moment of the planet carrier swing of planetary gear and wheel for inputting engagement generation effectively in four orientation; This structure all adopts external toothing, and is easy to process, and particularly planet carrier makes the whole axial dimension minimizing of planetary structure, the reduced thickness of movement as one of them output wheel; Owing to by screw retention planetary gear sheet and planet tooth axle, can correctly assemble and positive engagement when making the assembling planetary mechanism, the relative position of the gear teeth that assurance has set can not change in addition.
Description of drawings
Fig. 1 is the part floor map that the mechanical watch that has two top flywheels comprises planet circular system;
Fig. 2 is the section axial synoptic diagram that the mechanical watch that has two top flywheels comprises planet circular system;
Among the figure:
1a: the first centre pinion 1b: the first centre wheel sheet 2a: planetary gear sheet
2b: planet tooth axle 2c: planet screw 3a: the second centre wheel sheet
3b: the second center-wheel arbor 4a: the 3rd centre pinion 4b: the 3rd centre wheel sheet
5a: first crosses tooth axle 5b: 6: the first second pinions of first setting pinion
7a: second crosses tooth axle 7b: 8: the second second pinions of second setting pinion
9: minute wheel 10: minute hand 11: hour wheel
12: hour hands 13: driving wheel on barrel
Embodiment
Below in conjunction with the drawings and specific embodiments the present invention is described in further detail:
As depicted in figs. 1 and 2, the present invention has the mechanical watch of two top flywheels, comprising: the first centre pinion 1a, the first centre wheel sheet 1b, planetary gear sheet 2a, planet tooth axle 2b, planet screw 2c, the second centre wheel sheet 3a, the second center-wheel arbor 3b, the 3rd centre pinion 4a, the 3rd centre wheel sheet 4b, first cross tooth axle 5a, the first setting pinion 5b, first second pinion 6, second is crossed tooth axle 7a, the second setting pinion 7b, second second pinion 8, minute wheel 9, minute hand 10, hour wheel 11, hour hands 12, driving wheel on barrel 13; Described driving wheel on barrel 13 is arranged on the clamping plate, and meshes with the first centre pinion 1a, drives the first centre pinion 1a and turns clockwise; The described first centre wheel sheet 1b and the first centre pinion 1a pressing are one, and mesh with planetary gear sheet 2a, drive planetary gear sheet 2a rotation; Described planetary gear sheet 2a and planet tooth axle 2b are by the planet screw 2c formation planetary gear set that is fixed as one, select for use screw can guarantee that planetary gear sheet and planet tooth axle adjust the relative position of the gear teeth under the situation of suitably unclamping screw, so that correctly assembling and positive engagement; On the described second centre wheel sheet 3a 2 to 8 planetary gear set are set evenly, and are turned clockwise by the planetary gear set driving, best is that 4 planetary gear set evenly are set on the second centre wheel sheet 3a, and is turned clockwise by 4 planetary gear set drivings; The present invention's planet carrier is provided with four planetary gears and meshes with wheel for inputting simultaneously, can offset the moment of the planet carrier swing of planetary gear and wheel for inputting engagement generation like this in four orientation more effectively.It should be noted that screw thread that planet tooth axle 2b and planet screw 2c are cooperated screws direction and the suffered moment direction of planetary gear 2a is consistent, guarantee that planetary gear is the direction that screws of screw all the time in rotating process, because both can not break away from or be loosening, and the relative position of the gear teeth that set can not changed; Described the 3rd centre pinion 4a and the 3rd centre wheel sheet 4b pressing are one, coaxial being arranged on the second center-wheel arbor 3b, and with planet tooth axle 2b engagement, under four planetary gear set drive, turn clockwise; The described second centre wheel sheet 3a and the second center-wheel arbor 3b pressing are one, and have formed planetary wheeling assembly with four planetary gear set, the 3rd centre pinion 4a and the 3rd centre wheel sheet 4b; The described second centre wheel sheet 3a is relative with the 3rd centre wheel sheet 4b, and the first centre pinion 1a ratio of gear all is 2: 1 separately, described second centre wheel sheet 3a drive first is crossed tooth axle 5a and is rotated counterclockwise, the described first mistake tooth axle 5a and the first setting pinion 5b pressing are one, described first setting pinion 5b and 6 engagements of first second pinion, driving first second pinion 6 turns clockwise, the described top flywheel A and first second pinion 6 are fixed as one, and per minute rotates a circle clockwise; Described the 3rd centre wheel sheet 4b drive second is crossed tooth axle 7a and is rotated counterclockwise, the described second mistake tooth axle 7a and the second setting pinion 7b pressing are one, described second setting pinion 7b and 8 engagements of second second pinion, driving second second pinion 8 turns clockwise, the described top flywheel B and second second pinion 8 are fixed as one, and per minute rotates a circle clockwise; Described minute wheel 9 is an one with the concentric frictional fit of the first centre pinion 1a, and turns clockwise; Described minute hand 10 is arranged on the minute wheel 9; Described hour hands 12 are arranged on the hour wheel 11.
The present invention adopts the course of work of four groups of planetary gear embodiment to be described as follows:
As depicted in figs. 1 and 2, driving wheel on barrel 13 drives the rotation of the first centre pinion 1a clockwise direction, under the drive of the first centre wheel sheet 1b, four planetary gear set rotations clockwise simultaneously, and serve as axle revolution clockwise, and drive the second centre wheel sheet 3a simultaneously and the 3rd centre wheel sheet 4b turns clockwise with the axial line of the first centre pinion 1a.The second centre wheel sheet 3a drives first third wheel 5, and give first second pinion 6 with NE BY ENERGY TRANSFER, because first second pinion 6 is fixed together with top flywheel A, so top flywheel A has obtained to come from the speed rotation that energy clockwise direction that driving wheel on barrel 13 carries rotates a circle with per minute; The 3rd centre wheel sheet 4b drives second third wheel 7 simultaneously, and give second second pinion 8 with NE BY ENERGY TRANSFER, because second second pinion 8 is fixed together with top flywheel B, therefore top flywheel B has obtained to come from the speed rotation that energy clockwise direction that driving wheel on barrel 13 carries rotates a circle with per minute equally, it should be noted that driving wheel on barrel 13 exports to differential gear train and distribute to top flywheel A and top flywheel B with approximately equalised energy value, make their escapement speed adjusting gears separately to run well, and rotate with the speed in one week of per minute.Top flywheel A and top flywheel B make the second centre wheel sheet 3a and the 3rd centre wheel sheet 4b turn clockwise with the speed of per 1 hour half cycle by train, and their speed is exported to the first centre pinion 1a after synthetic through four planetary gear set and turned clockwise with the speed in per 1 hour one week, and the speed that drives 9 per 1 hour one weeks of minute wheel turns clockwise, and drives 10 instruction times of minute hand.Because the rotational speed of minute wheel 9 is 12 times of hour wheel 11, hour wheel 11 turns clockwise with the speed in per 12 hours one weeks and drives 12 instruction times of hour hands.
The present invention puts unlike the prior art and is: four planetary gears that are provided with on the planet carrier mesh with wheel for inputting and output wheel simultaneously and are two pairs of external toothings, and planet carrier self is exactly an output wheel, not only rotation but also revolve round the sun and drive planet carrier and cross top flywheel rotation of wheel drive of four planetary gears under the driving of wheel for inputting by one, rotate and drive another output wheel simultaneously, and cross another top flywheel rotation of wheel drive by another.The advantage of this structure is: at first, it adopts four planetary gear load balancing mechanisms can offset the moment of the planet carrier swing of planetary gear and wheel for inputting engagement generation in four orientation more effectively; Secondly, this structure all adopts external toothing, and is easy to process, and particularly planet carrier is as one of them output wheel, thus like this can so that the whole axial dimension of planetary structure reduce a lot of can be so that the reduced thickness of movement; At last, the present invention adopts screw retention planetary gear sheet and planet tooth axle, make that both can relatively rotate and adjust the relative position of the gear teeth so that correctly assemble and positive engagement under the situation of suitably unclamping screw in the assembling planetary mechanism, according to the multirow star structure Design principle in the mechanical principle, it is advantageous that the gear number of teeth of this planet structure and the number of planetary gear can not be restricted, need on gear, not mark during this external assembling yet, planetary gear sheet and planet tooth axle, the direction that screws of external thread and the screw-internal thread fit of planet tooth axle of fixing both screws must be consistent with the suffered moment direction of planetary gear, guarantee that planetary gear is the direction that screws of screw all the time in rotating process, because both can not break away from or be loosening, and the relative position of the gear teeth that set can not changed.
It is worthy of note that protection scope of the present invention is not limited to above-mentioned instantiation mode, according to basic fundamental of the present invention design, also can essentially identical structure transmission, the layout of structure is adjusted.At first, the embodiment of the invention adopts 2～8 groups of planetary gears, still can realize purpose of the present invention; Secondly; the embodiment of the invention can adopt a coaxial-type and a centering type top flywheel, two coaxial-type top flywheels or two centering type top flywheels; still can realize purpose of the present invention; as long as those of ordinary skills need not through creative work; the embodiment that can associate all belongs to protection scope of the present invention.
Claims (2)
1. the planet circular system of a double-tourbillion mechanical watch is characterized in that: comprising: first centre pinion (1a), the first centre wheel sheet (1b), planetary gear sheet (2a), planet tooth axle (2b), planet screw (2c), the second centre wheel sheet (3a), second center-wheel arbor (3b), the 3rd centre pinion (4a), the 3rd centre wheel sheet (4b); Described planetary gear sheet (2a) and planet tooth axle (2b) are by planet screw (2c) the formation planetary gear set that is fixed as one, planet tooth axle (2b) internal thread screws direction with the screw thread that external thread cooperated of planet screw (2c) and the suffered moment direction of planetary gear sheet (2a) is consistent, and described planetary gear set is arranged on the described second centre wheel sheet (3a); The described first centre wheel sheet (1b) is an one with first centre pinion (1a) pressing, described first centre wheel sheet (1b) and planetary gear sheet (2a) engagement; Described the 3rd centre pinion (4a) is an one with the 3rd centre wheel sheet (4b) pressing, and coaxial being arranged on second center-wheel arbor (3b), the 3rd centre pinion (4a) and planet tooth axle (2b) engagement; The described second centre wheel sheet (3a) is an one with second center-wheel arbor (3b) pressing; Evenly be provided with two to eight described planetary gear set on the described second centre wheel sheet (3a), and drive the second centre wheel sheet (3a) and the rotation of the 3rd centre wheel sheet (4b) by described planetary gear set.
2. the planet circular system of double-tourbillion mechanical watch according to claim 1, it is characterized in that: on the described second centre wheel sheet (3a) four described planetary gear set are set evenly, and drive the second centre wheel sheet (3a) and the rotation of the 3rd centre wheel sheet (4b) by four described planetary gear set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100695283A CN101598926B (en) | 2009-07-02 | 2009-07-02 | Planetary gear train of double-tourbillion mechanical watch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100695283A CN101598926B (en) | 2009-07-02 | 2009-07-02 | Planetary gear train of double-tourbillion mechanical watch |
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| Publication Number | Publication Date |
|---|---|
| CN101598926A CN101598926A (en) | 2009-12-09 |
| CN101598926B true CN101598926B (en) | 2010-09-15 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103064276B (en) * | 2011-10-21 | 2013-11-13 | 天王电子（深圳）有限公司 | Double-eccentric mechanical watch |
| CN103176393B (en) * | 2011-12-21 | 2016-03-09 | 烟台持久钟表集团有限公司 | A kind of clock timesharing gear train |
| CN103713511B (en) * | 2012-09-28 | 2017-06-13 | 天津海鸥表业集团有限公司 | A kind of micro-adjusting mechanism of resonant double balance wheel mechanical watch |
| CN104281039B (en) * | 2013-07-05 | 2016-12-28 | 天津海鸥表业集团有限公司 | Automatic winding mechanism of planetary gear train of pearl top watch |
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| CN101598926A (en) | 2009-12-09 |
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