CN203241702U - Differential gear train for double-tourbillon mechanical watch - Google Patents
Differential gear train for double-tourbillon mechanical watch Download PDFInfo
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- CN203241702U CN203241702U CN 201320147076 CN201320147076U CN203241702U CN 203241702 U CN203241702 U CN 203241702U CN 201320147076 CN201320147076 CN 201320147076 CN 201320147076 U CN201320147076 U CN 201320147076U CN 203241702 U CN203241702 U CN 203241702U
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- gear
- differential
- sheet
- wheel
- planet wheel
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Abstract
The utility model discloses a differential gear train for a double-tourbillon mechanical watch. According to the differential gear train, a drive gear shaft is riveted with a differential drive gear shaft, and the differential drive gear shaft is engaged with a first upper planet gear; a first lower planet gear is riveted with the first upper planet gear via a planet gear shaft; the planet gear shaft is used for driving a differential gear sheet to rotate, and the differential gear sheet is used for transferring a torque to a first escapement mechanism via a series gear train; the first lower planet gear is engaged with a driven gear shaft, a driven gear sheet is riveted with the driven gear shaft, and the driven gear sheet is used for transferring a torque to a second escapement mechanism via a series gear train; and a second upper planet gear of a second planet gear is engaged with the differential drive gear shaft, and a second lower planet gear is engaged with the driven gear shaft. The differential gear train has the following beneficial effects that: two or three planet gears are symmetrically arranged on the differential gear sheet, and the radial force of a plurality of the planet gears on the central hole of the differential gear sheet while transferring the torque can be mutually counteracted; and a friction force between the central hole of the differential gear sheet and a central gear shaft is the lowest, and the spring torque can be stably distributed to the two escapement mechanisms, thus ensuring the accurate travel time of the double-tourbillon mechanical watch, and improving product quality.
Description
Technical field
The utility model relates to a kind of watch parts; The differential gear train that particularly relates to a kind of double-tourbillion mechanical watch.
Background technology
The energy demand of two its clockwork springs of top flywheel mechanism in the mechanical watch is supplied with simultaneously two cover escapements and will be guaranteed can not disturb each other, therefore, needs a moment to distribute drive wheel mechanism, i.e. differential gear train; Differential gear train rotates dumb, can cause movement to stop walking or stopping steathily.Present differential gear train includes a planetary gear, by the planetary gear carry-over moment.Fig. 1 is the axial schematic diagram of differential gear train that a planetary gear is installed; As shown in Figure 1, active gear shaft 1 and differential active gear shaft 2 riveteds, differential active gear shaft 2 and 3 engagements of the first upper planet wheel.The first lower planetary gear 4 is by planet wheel spindle 8 and the first upper planet wheel 3 riveteds, and planet wheel spindle 8 inserts in the hole of engaged wheel sheet 5.Planet wheel spindle 8 drives 5 rotations of differential gear sheet, passes torque to the first set escapement by serial train.The first lower planetary gear 4 and 6 engagements of driven tooth axle, engaged wheel sheet 7 and driven tooth axle 6 riveteds, engaged wheel sheet 7 passes torque to the second cover escapement by serial train.When differential active gear shaft 2 and 3 engagement of the first upper planet wheel, the upper end of planet wheel spindle 8 can produce a radial force.The first lower planetary gear 4 is during with 6 engagement of driven tooth axle, and driven tooth axle 6 will produce a reacting force to the first lower planetary gear 4, can produce a radial force to the lower end of planet wheel spindle 8.
There is following shortcoming in technique scheme, and the F that makes a concerted effort of the radial force that the top and bottom of planet wheel spindle 8 are subject to will make the center pit of differential gear sheet 5 and the tooth axle of active gear shaft 1 produce larger friction force, and this friction force will reduce the output torque of differential gear sheet 5; To produce radial force K to driven tooth axle 6 when the first lower planetary gear 4 meshes with driven tooth axle 6, radial force K will make the center pit of driven tooth axle 6 and engaged wheel sheet 7 and the tooth axle of active gear shaft 1 produce friction, and this friction force will reduce the output torque of engaged wheel sheet 7.Therefore, the moment efficient that differential gear train spreads out of is lower, and not steady, when affecting normally the walking of wrist-watch.
Summary of the invention
Technical problem to be solved in the utility model is, provide a kind of can smooth rotation and the differential gear train of efficient carry-over moment.
The technical scheme that the utility model adopts is: a kind of differential gear train of double-tourbillion mechanical watch comprises active gear shaft, differential active gear shaft, the first row star-wheel, the second planetary gear, differential gear sheet, driven tooth axle, engaged wheel sheet and planet wheel spindle; The first row star-wheel comprises the first upper planet wheel and the first lower planetary gear, described active gear shaft and differential active gear shaft riveted, differential active gear shaft and the engagement of the first upper planet wheel; Described the first lower planetary gear is by planet wheel spindle and the first upper planet wheel riveted, and planet wheel spindle inserts in the hole of differential gear sheet; Described planet wheel spindle drives the rotation of differential gear sheet, passes torque to the first set escapement by serial train; Described the first lower planetary gear and the engagement of driven tooth axle, engaged wheel sheet and driven tooth axle riveted, the engaged wheel sheet passes torque to the second cover escapement by serial train; Described the second planetary gear comprises, is arranged on the second upper planet wheel and the second lower planetary gear on the differential gear sheet with the first upper planet wheel and the first lower planetary gear rotational symmetry; Described differential active gear shaft and the engagement of the second upper planet wheel, the second lower planetary gear and the engagement of driven tooth axle.
A kind of differential gear train of double-tourbillion mechanical watch comprises, active gear shaft, differential active gear shaft, the first row star-wheel, the second planetary gear, the third line star-wheel, differential gear sheet, driven tooth axle, engaged wheel sheet and planet wheel spindle; Described the first row star-wheel comprises the first upper planet wheel and the first lower planetary gear, described active gear shaft and differential active gear shaft riveted, differential active gear shaft and the engagement of the first upper planet wheel; Described the first lower planetary gear is by planet wheel spindle and the first upper planet wheel riveted, and planet wheel spindle inserts in the hole of differential gear sheet; Described planet wheel spindle drives the rotation of differential gear sheet, passes torque to the first set escapement by serial train; Described the first lower planetary gear and the engagement of driven tooth axle, engaged wheel sheet and driven tooth axle riveted, the engaged wheel sheet passes torque to the second cover escapement by serial train; Described the first row star-wheel, the second planetary gear and the third line star-wheel evenly distribute, and are installed on the differential gear sheet; Described the second planetary gear comprises the second upper planet wheel and the second lower planetary gear; Described the third line star-wheel comprises the 3rd upper planet wheel and the 3rd lower planetary gear; Described differential active gear shaft meshes with the second upper planet wheel and the 3rd upper planet wheel respectively, and described the second lower planetary gear and the 3rd lower planetary gear mesh with the driven tooth axle respectively.
The beneficial effects of the utility model are: owing to being symmetrical arranged two or three planetary gears at the differential gear sheet, a plurality of planetary gears can be cancelled out each other to the radial force of differential gear sheet center pit when carry-over moment; Therefore, the friction force of differential gear sheet center pit and centre pinion is minimum, and the moment of clockwork spring can be distributed to two cover escapements reposefully, and the moment transmission efficiency is high, when effectively guaranteeing accurately the walking of double-tourbillion mechanical watch, improves product quality.
Description of drawings
Fig. 1 is the existing axial schematic diagram of differential gear train that a planetary gear is installed;
Fig. 2 is the axial schematic diagram of differential gear train that the utility model is equipped with two planetary gears;
Fig. 3 is the differential gear train floor map that the utility model is equipped with two planetary gears;
Fig. 4 is the differential gear train floor map that the utility model is equipped with three planetary gears.
Among the figure:
1. active gear shaft 2. differential active gear shaft 5. differential gear sheets 6. driven tooth axles
7. engaged wheel sheet 8. planet wheel spindles 9. the first row star-wheels 10. second planetary gears
11. the third line star-wheel.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail:
The 1st embodiment, as shown in Figures 2 and 3, the differential gear train of the utility model double-tourbillion mechanical watch comprises, active gear shaft 1, differential active gear shaft 2, the first row star-wheel 9, the second planetary gear 10, differential gear sheet 5, driven tooth axle 6, engaged wheel sheet 7 and planet wheel spindle 8; The first row star-wheel 9 comprises that the first upper planet wheel 3 and the first lower planetary gear 4, the second planetary gears 10 comprise the second upper planet wheel 3 ' and the second lower planetary gear 4 '; Described the first row star-wheel 9 and the second planetary gear 10 are symmetricly set on the differential gear sheet 5; Described active gear shaft 1 and differential active gear shaft 2 riveteds, differential active gear shaft 2 mesh with the first upper planet wheel 3 and the second upper planet wheel 3 ' respectively; Described the first lower planetary gear 4 and the second lower planetary gear 4 ' are respectively by planet wheel spindle 8 and the first upper planet wheel 3 and the second upper planet wheel 3 ' riveted, and planet wheel spindle 8 inserts in the hole of differential gear sheet 5; Described planet wheel spindle 8 drives 5 rotations of differential gear sheet, passes torque to the first set escapement by serial train; Described the first lower planetary gear 4 and the second lower planetary gear 4 ' mesh with driven tooth axle 6 respectively, engaged wheel sheet 7 and driven tooth axle 6 riveteds, and engaged wheel sheet 7 passes torque to the second cover escapement by serial train.Therefore the mutual balance of radial force H that the radial force F that first planetary gear produces and second planetary gear produce and offsetting, does not have friction force between the tooth axle of the hole of differential gear sheet 5 and active gear shaft 1,5 runnings of differential gear sheet can be flexible steady, and output torque efficient is high.The mutual balance of radial force N that the radial force K that first planetary gear produces driven tooth axle 6 and second planetary gear produce driven tooth axle 6 and offsetting, therefore, 7 runnings of engaged wheel sheet can be flexibly and are steady, and output torque efficient is high.
The 2nd embodiment, as shown in Figure 4, the differential gear train of the utility model double-tourbillion mechanical watch comprises the first row star-wheel 9, the second planetary gear 10 and the third line star-wheel 11, described the first row star-wheel 9, the second planetary gear 10 and the third line star-wheel 11 evenly distribute, and are installed on the differential gear sheet 5; Described active gear shaft 1 and differential active gear shaft 2 riveteds, differential active gear shaft 2 mesh with three upper planet wheels respectively; Described three lower planetary gears are respectively by planet wheel spindle 8 and upper planet wheel riveted, and planet wheel spindle 8 inserts in the hole of differential gear sheet 5; Described planet wheel spindle 8 drives 5 rotations of differential gear sheet, passes torque to the first set escapement by serial train; Described three lower planetary gears mesh with driven tooth axle 6 respectively, engaged wheel sheet 7 and driven tooth axle 6 riveteds, and engaged wheel sheet 7 passes torque to the second cover escapement by serial train, and other 26S Proteasome Structure and Function is all identical with embodiment 1, therefore repeats no more.
The utility model is owing to being symmetrical arranged two or uniform three planetary gears are set at the differential gear sheet, and a plurality of planetary gears can be cancelled out each other to the radial force of differential gear sheet center pit when carry-over moment; Therefore, the friction force of differential gear sheet center pit and centre pinion is minimum, and the moment of clockwork spring can be distributed to two cover escapements reposefully, and carry-over moment efficient is high, when effectively guaranteeing accurately the walking of double-tourbillion mechanical watch, improves product quality.
Claims (2)
1. the differential gear train of a double-tourbillion mechanical watch comprises, active gear shaft (1), differential active gear shaft (2), the first row star-wheel (9), differential gear sheet (5), driven tooth axle (6), engaged wheel sheet (7) and planet wheel spindle (8); The first row star-wheel (9) comprises the first upper planet wheel (3) and the first lower planetary gear (4), described active gear shaft (1) and differential active gear shaft (2) riveted, differential active gear shaft (2) and the first upper planet wheel (3) engagement; Described the first lower planetary gear (4) is by planet wheel spindle (8) and the first upper planet wheel (3) riveted, and planet wheel spindle (8) inserts in the hole of differential gear sheet (5); Described planet wheel spindle (8) drives differential gear sheet (5) rotation, passes torque to the first set escapement by serial train; Described the first lower planetary gear (4) and driven tooth axle (6) engagement, engaged wheel sheet (7) and driven tooth axle (6) riveted, engaged wheel sheet (7) passes torque to the second cover escapement by serial train; It is characterized in that, also include the second planetary gear (10), described the second planetary gear (10) comprises, is arranged on the second upper planet wheel (3 ') and the second lower planetary gear (4 ') on the differential gear sheet (5) with the first upper planet wheel (3) and the first lower planetary gear (4) rotational symmetry; Described differential active gear shaft (2) and the engagement of the second upper planet wheel (3 '), the second lower planetary gear (4 ') and driven tooth axle (6) engagement.
2. the differential gear train of a double-tourbillion mechanical watch comprises, active gear shaft (1), differential active gear shaft (2), the first row star-wheel (9), differential gear sheet (5), driven tooth axle (6), engaged wheel sheet (7) and planet wheel spindle (8); Described the first row star-wheel comprises the first upper planet wheel (3) and the first lower planetary gear (4), described active gear shaft (1) and differential active gear shaft (2) riveted, differential active gear shaft (2) and the first upper planet wheel (3) engagement; Described the first lower planetary gear (4) is by planet wheel spindle (8) and the first upper planet wheel (3) riveted, and planet wheel spindle (8) inserts in the hole of differential gear sheet (5); Described planet wheel spindle (8) drives differential gear sheet (5) rotation, passes torque to the first set escapement by serial train; Described the first lower planetary gear (4) and driven tooth axle (6) engagement, engaged wheel sheet (7) and driven tooth axle (6) riveted, engaged wheel sheet (7) passes torque to the second cover escapement by serial train; It is characterized in that, also comprise the second planetary gear (10) and the third line star-wheel (11); Described the first row star-wheel (9), the second planetary gear (10) and the third line star-wheel (11) evenly distribute, and are installed on the differential gear sheet (5); Described the second planetary gear (10) comprises the second upper planet wheel (3 ') and the second lower planetary gear (4 '); Described the third line star-wheel (11) comprises the 3rd upper planet wheel and the 3rd lower planetary gear; Described differential active gear shaft (2) meshes with the second upper planet wheel (3 ') and the 3rd upper planet wheel respectively, and described the second lower planetary gear (4 ') and the 3rd lower planetary gear mesh with driven tooth axle (6) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320147076 CN203241702U (en) | 2013-03-28 | 2013-03-28 | Differential gear train for double-tourbillon mechanical watch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320147076 CN203241702U (en) | 2013-03-28 | 2013-03-28 | Differential gear train for double-tourbillon mechanical watch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203241702U true CN203241702U (en) | 2013-10-16 |
Family
ID=49318977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320147076 Expired - Lifetime CN203241702U (en) | 2013-03-28 | 2013-03-28 | Differential gear train for double-tourbillon mechanical watch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203241702U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104405851A (en) * | 2014-10-13 | 2015-03-11 | 张自武 | Differential with escapement mechanism |
-
2013
- 2013-03-28 CN CN 201320147076 patent/CN203241702U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104405851A (en) * | 2014-10-13 | 2015-03-11 | 张自武 | Differential with escapement mechanism |
| CN104405851B (en) * | 2014-10-13 | 2018-04-03 | 张自武 | A kind of escapement differential mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: LIAONING PEACOCK WATCH CO., LTD. Free format text: FORMER OWNER: TIANJIN ZHONGHAI WATCH INDUSTRY CO., LTD. Effective date: 20150424 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 300220 HEXI, TIANJIN TO: 118000 DANDONG, LIAONING PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20150424 Address after: 118000 Dandong Zhenxing District, Kimcheon, No. four, No. Road, No. 18 Patentee after: LIAONING PEACOCK WATCH Co.,Ltd. Address before: 300220 No. 24 Dongting Road, Tianjin, Hexi District Patentee before: TIANJIN ZHONGHAI WATCH INDUSTRY Co.,Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20131016 |
|
| CX01 | Expiry of patent term |