Transmission structure for multiple boxes of watch

Abstract

The invention discloses a transmission structure for multiple boxes of a watch. The transmission structure comprises a driving mechanism, a transmission mechanism and a prime mover mechanism connected with the transmission mechanism and the driving mechanism. The prime mover mechanism comprises n barrel wheel assemblies, n is a positive integer larger than or equal to 2, the n barrel wheel assemblies are sequentially arranged, every two adjacent barrel wheel assemblies are in gear transmission, each barrel wheel assembly comprises a barrel wheel and a clockwork spring, the ith barrel wheel is in gear transmission with the transmission mechanism, i is larger than or equal to 1 and smaller than or equal to n, i belongs to N. The driving mechanism drives the clockwork spring to wind up, and N is a positive integer larger than or equal to 2. The clockwork spring releases a string to drive the barrel wheel to rotate; in the winding process, the driving mechanism drives the n springs to rotate synchronously, and synchronous winding is achieved. In the string releasing process, the n clockwork springs release strings synchronously and drive the n barrel wheels to rotate synchronously, the moments of the n barrel wheels are superposed to the ith barrel wheel synchronously, the ith barrel wheel drives the transmission mechanism to rotate, and the layout freedom degree of the transmission structure is improved.

Description

Technical Field

[0001] This invention belongs to the field of mechanical watch transmission, and particularly relates to a transmission structure for multiple watch barrels. Background Technology

[0002] In traditional watch movements, the component that stores power is called the barrel wheel assembly (or barrel), which transmits power to the regulating mechanism via gears. Because the movement has specific requirements regarding the torque and duration of the barrel wheel assembly, there are minimum diameter requirements. However, for components like spherical tourbillons or other parts that occupy a large area of ​​the movement and require high torque output, a single barrel wheel assembly cannot meet the demand, necessitating the use of multiple barrel wheel assemblies. This reduces the full-winding torque of each barrel wheel assembly, reduces the thickness of the mainspring, and allows for more revolutions within the same barrel size, ultimately ensuring more stable timekeeping throughout the movement.

[0003] Utility model patent CN209118078U discloses a parallel structure of two carton wheels. The first and second carton wheels simultaneously mesh with the two-wheel assembly, driving the two-wheel assembly to rotate and supplying energy to the transmission gear system. At this time, the power received by the two-wheel assembly is the sum of the output torques of the two carton wheel assemblies, and the energy supplied is the sum of the energy stored in the two carton wheel assemblies. Utility model patent CN214011738U discloses a system where four carton wheel assemblies are connected in pairs (overlapping over a long period, with constant torque), and then input to the central transmission gear ring via dual paths to complete the torque superposition.

[0004] Both of the above utility models involve inputting two power sources into the main drive to achieve torque superposition. Existing barrel wheel assemblies are directly or indirectly engaged with the main drive. This transmission path, especially when the final transmission needs to reach the central spherical tourbillon, concentrates the main drive structure between the two barrel wheel assemblies and the central spherical tourbillon. This restricts the planar arrangement of the movement, significantly reducing its degree of freedom. The overlap between the main drive structure and the barrel plane results in a large axial dimension, further limiting the barrel's thickness and size.

[0005] Therefore, there is an urgent need to design a transmission structure for multiple watch barrels to solve the problems mentioned above. Summary of the Invention

[0006] The purpose of this invention is to provide a transmission structure for multiple watch cases, which improves the layout freedom of the transmission structure.

[0007] To achieve the above objectives, the specific technical solution of the transmission structure for a multi-barrel watch according to the present invention is as follows: A transmission structure for a multi-bar case of a watch includes: a drive mechanism, a transmission mechanism, and a prime mover mechanism connecting the transmission mechanism and the drive mechanism; The prime mover mechanism includes n Individual carton wheel assembly, n It is a positive integer greater than or equal to 2. n The barrel wheel assemblies are arranged sequentially, and there is gear transmission between adjacent barrel wheel assemblies. Each barrel wheel assembly includes a barrel wheel and a mainspring. i The gear transmission between the cassette wheel and the transmission mechanism, 1≤ i ≤ n and i ∈N, the drive mechanism winds the mainspring, and the unwinding of the mainspring causes the barrel wheel to rotate; During the winding process, the drive mechanism drives n The mainsprings rotate synchronously to achieve synchronous winding. During the string release process, n The mainspring is wound synchronously, driving... n The aforementioned carton wheels rotate synchronously. n The torque of each of the aforementioned carton wheels is synchronously superimposed on the torque of the first wheel. i The first of the aforementioned carton wheels, the first i The aforementioned box wheels drive the transmission mechanism to rotate.

[0008] Furthermore, the drive mechanism includes n The first upper ratchet, the first n The upper ratchet and the first n Each barrel wheel assembly is correspondingly configured, and the winding ratchet, barrel wheel, and mainspring must meet the following conditions: The first n- Number of teeth on a cassette wheel / number of teeth n The number of teeth on the first carton wheel = the number of teeth on the second carton wheel n- Number of teeth on one upper ratchet / number of teeth on the first ratchet n The number of teeth on the upper ratchet = the number of teeth on the first ratchet. n- Number of mainspring turns in one barrel wheel assembly / number of turns n The number of turns of the mainspring in each barrel wheel assembly.

[0009] Furthermore, the prime mover mechanism is connected to m One transmission mechanism, 1≤ m ≤ n and m ∈N, m Each transmission mechanism is respectively connected to m The single-bar box gear drive, during the string release process n The torques of each of the carton wheels are respectively superimposed on the torques of the... m The gear transmission mechanism of the transmission mechanismm On each carton wheel, the drive of the m The transmission mechanism rotates.

[0010] Furthermore, when i = n At that time, the first n The total torque obtained by each carton wheel is n The sum of the torques of the aforementioned carton wheels, the first n The first carton wheel is connected to the gear of the transmission mechanism at its output end, so as to facilitate the transmission of the first carton wheel. n The total torque obtained by the first wheel is transmitted to the transmission mechanism, and the first wheel... n The formula for calculating the total torque obtained by each carton wheel is as follows: in, M 1 represents the full-load torque of the first carton wheel. R 1 represents the radius of the first carton wheel. M 2 represents the full-load torque of the second carton wheel. R 2 is the radius of the second carton wheel. M n For the first n The full-load torque of each cassette wheel, R n For the first n The radius of each carton wheel, The force applied from the first carton wheel to the second carton wheel. The total torque obtained by the second carton wheel, The force applied by the second carton wheel to the third carton wheel. The total torque obtained for the third carton wheel, For the first n -1 carton wheel applied to the first n The force on each carton wheel For the first n The total torque obtained on each carton wheel.

[0011] Furthermore, two adjacent sprocket wheels are directly engaged, and the two adjacent sprocket wheels rotate in opposite directions; two adjacent upper ratchet wheels are also directly engaged, and the two adjacent upper ratchet wheels rotate in opposite directions.

[0012] Furthermore, the prime mover mechanism also includes a geared shaft, which simultaneously drives two adjacent sprocket gears to adjust the rotation direction of the two adjacent sprockets. With a geared shaft between two adjacent sprockets, the two adjacent sprockets rotate in the same direction. The drive mechanism also includes an upper feed wheel, which simultaneously drives two adjacent upper ratchet gears to adjust the rotation direction of the two adjacent upper ratchets. With an upper feed wheel between two adjacent upper ratchets, the two adjacent upper ratchets rotate in the same direction.

[0013] Furthermore, the transmission mechanism includes a two-wheel assembly, which includes two wheel plates and two gear shafts. The two wheel plates are coaxially and fixedly connected to the two gear shafts, and the two gear shafts are connected to the first... i Gear transmission between the aforementioned box wheels.

[0014] Furthermore, the transmission structure for the multiple barrels of the watch also includes a tourbillon, with gear transmission between the tourbillon and the two wheel plates.

[0015] Furthermore, the transmission structure for the multiple winding barrels of the watch also includes a backstop mechanism, which engages with any of the upper winding ratchet teeth and rotates in one direction.

[0016] Furthermore, the transmission structure for the multiple watch cases also includes a lower clamping plate and an upper clamping plate, wherein the lower clamping plate is fixedly mounted on... n The upper clamping plate is fixedly installed at the lower end of the carton wheel assembly. n The upper end of the carton wheel assembly is fixed. n The aforementioned carton wheel assembly.

[0017] Furthermore, the drive mechanism also includes a rotating shaft, a vertical wheel, and a winding wheel. The rotating shaft passes through the center of the vertical wheel and is fixedly connected to the vertical wheel. The vertical wheel and the winding wheel are connected by gears, and the winding wheel and the first winding ratchet are connected by gears.

[0018] Furthermore, the drive mechanism also includes an upper winding wheel, which is connected to the upper winding wheel and the first upper winding ratchet gear to adjust the layout of the prime mover mechanism.

[0019] The transmission structure for multiple watch barrels of the present invention has the following advantages: High-efficiency and stable torque superposition: Through the direct or indirect meshing of multiple barrel wheel assemblies, the output torque of these assemblies is linearly superimposed, improving the overall torque output capability of the movement. Simultaneously, it reduces the full-load torque of a single mainspring, allowing for thinner mainsprings, increased mainspring coils, extended power reserve time, and stable timekeeping. Depending on torque requirements, the number and size of barrel wheel assemblies can be freely increased within space constraints, enabling the simultaneous output of the sum of torques from multiple barrel wheel assemblies, thus achieving long-term torque and timekeeping stability. The superimposed torque from multiple barrel wheel assemblies is output to the transmission mechanism via a single path, making the movement layout more flexible. This maximizes the planar and axial space of the movement for the prime mover, resulting in longer mainsprings, greater energy storage, and more stable power output.

[0020] High layout flexibility: the transmission mechanism only interacts with the first... i The cassette wheels are directly or indirectly engaged by gears, and the positions of other cassette wheels are not restricted by the position of the transmission mechanism. This increases the layout freedom of the prime mover and transmission mechanism, reduces the planar overlap between the transmission mechanism and the prime mover, improves the utilization rate of the machine core plane and axial space, and facilitates the size optimization of the prime mover.

[0021] Simple and reliable structure: through n The simultaneous rotation of the upper ratchet enables the upper winding and power transmission, reducing redundant transmission components, lowering energy loss, and improving structural reliability. Attached Figure Description

[0022] Figure 1 This is a plan view of a first embodiment of the transmission structure for a multi-barrel watch according to the present invention; Figure 2 This is an axial sectional view of a first embodiment of the transmission structure for a multi-barrel watch according to the present invention; Figure 3 This is a partial perspective structural diagram of a first embodiment of the transmission structure for a multi-barrel watch according to the present invention; Figure 4 This is a schematic diagram of the torque transmission of the three barrel wheels in the transmission structure of the multi-barrel barrel for watches according to the present invention; Figure 5 This is a schematic diagram of the torque transmission of multiple barrel wheels in the transmission structure of the multi-barrel drive for watches according to the present invention.

[0023] Figure 6 This is a plan view of a second embodiment of the transmission structure for a multi-barrel watch according to the present invention; Figure 7 This is an axial sectional view of a second embodiment of the transmission structure for a multi-barrel watch of the present invention; Figure 8This is a partial perspective structural diagram of a second embodiment of the transmission structure for a multi-barrel watch of the present invention; Figure 9 This is a plan view of a third embodiment of the transmission structure for a multi-barrel watch according to the present invention; Figure 10 This is an axial sectional view of a third embodiment of the transmission structure for a multi-barrel watch of the present invention; Figure 11 This is a partial perspective structural diagram of a third embodiment of the transmission structure for a multi-barrel watch of the present invention.

[0024] Explanation of markings in the diagram: 1. Drive mechanism; 11. Drafting ratchet; 111. First drafting ratchet; 112. Second drafting ratchet; 113. Third drafting ratchet; 12. Drafting guide wheel; 13. Rotating shank shaft; 14. Vertical wheel; 15. Drafting wheel; 16. Drafting intermediate wheel; 2. Prime drive mechanism; 21. Carton wheel assembly; 211. Carton wheel; 2111. First carton wheel; 2112. Second carton wheel; 2113. Third carton wheel 212. Gear; 2121. First mainspring; 2122. Second mainspring; 2123. Third mainspring; 22. Gear shaft; 3. Transmission mechanism; 31. Two-wheel assembly; 311. Two-wheel plate; 312. Two-gear shaft; 32. Three-wheel assembly; 321. Three-wheel plate; 322. Three-gear shaft; 33. Four-gear shaft; 4. Tourbillon; 5. Anti-reverse mechanism; 6. Lower clamping plate; 7. Upper clamping plate; 8. Three-wheel clamping plate. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] Those skilled in the art will understand that although some embodiments herein include certain features included in other embodiments but not others, combinations of features from different embodiments are intended to be within the scope of the invention and form different embodiments. For example, in the claims, any of the claimed embodiments can be used in any combination.

[0027] The following reference Figures 1 to 11 This invention describes a transmission structure for a multi-bar holder in a watch.

[0028] like Figures 1 to 11As shown, a transmission structure for a multi-bar case of a watch includes: a drive mechanism 1, a transmission mechanism 3, and a prime mover 2 connecting the transmission mechanism 3 and the drive mechanism 1; The prime mover mechanism 2 includes n Individual carton wheel assembly 21, n It is a positive integer greater than or equal to 2. n The barrel wheel assemblies 21 are arranged sequentially, and adjacent barrel wheel assemblies 21 are connected by gear transmission. Each barrel wheel assembly 21 includes a barrel wheel 211 and a mainspring 212. i The strip box wheel 211 is connected to the transmission mechanism 3 by gear transmission, 1≤ i ≤ n and i ∈N (N represents a natural number), the drive mechanism 1 drives the mainspring 212 to wind, and the mainspring 212 unwinds, driving the barrel wheel 211 to rotate; During the winding process, drive mechanism 1 drives n The mainspring 212 rotates synchronously to achieve synchronous winding; During the string release process, n The mainspring 212 is wound synchronously, driving... n The aforementioned carton wheels 211 rotate synchronously. n The torque of each of the carton wheels 211 is synchronously superimposed on the first... i The first of the aforementioned carton wheel 211, the first i The carton wheel 211 drives the transmission mechanism 3 to rotate.

[0029] Specifically, to avoid the transmission mechanism 3 being concentrated between the prime mover mechanism 2 and the gyrowheel, n The carton wheel assemblies 21 are arranged sequentially, and it is only necessary to ensure that the first carton wheel assembly 21 and the second carton wheel assembly 21 are connected in sequence. n Each carton wheel assembly 21 is connected in series, and only the first one... i Each wheel 211 meshes with the transmission mechanism 3, which increases the layout freedom of the prime mover 2, reduces the planar overlap between the transmission mechanism 3 and the prime mover 2, improves the utilization rate of the machine core plane and axial space, and facilitates the size optimization of the prime mover 2.

[0030] Specifically, through n The gear transmission of the 211 wheel of the carton achieves... n The linear superposition of the output torque of each barrel wheel 211 improves the overall torque output capability of the movement, while reducing the full-winding torque of a single mainspring 212. This allows for the use of a thinner mainspring 212, increases the number of mainspring turns, extends the power reserve time, and ensures stable timekeeping.

[0031] Furthermore, such as Figure 2 As shown, the drive mechanism includesn The first upper ratchet, the first n The upper ratchet and the first n Each barrel wheel assembly 21 is correspondingly provided, and the winding ratchet, barrel wheel 211, and mainspring 212 must meet the following conditions: The first n- Number of teeth on a 211-tooth carbide wheel / number of teeth n The number of teeth on the first carton wheel 211 = the number of teeth on the second carton wheel 211 n- Number of teeth on one upper ratchet / number of teeth on the first ratchet n The number of teeth on the upper ratchet = the number of teeth on the first ratchet. n- Number of turns of the mainspring 212 in a single barrel wheel assembly 21 / number of turns n The number of turns of the mainspring 212 in the barrel wheel assembly 21.

[0032] Specifically, by setting the above proportional relationships, we can ensure... n The winding and unwinding cycles of each barrel wheel assembly 21 are consistent.

[0033] Specifically, n The torque of each carton wheel 211, after being superimposed through gear transmission, is transmitted through the first... i Each wheel 211 transmits torque to the transmission mechanism 3, achieving a stable output of greater torque.

[0034] Specifically, the rotation of the upper ratchet 11 stores energy for the mainspring 212, and the mainspring 212 releases energy to drive the barrel wheel assembly 21 to rotate.

[0035] Specifically, setting n Each carton wheel assembly 21, via n The ratchet 11 rotates simultaneously, which in turn releases multiple springs 212 simultaneously, causing the barrel wheel assembly 21 to rotate simultaneously.

[0036] Specifically, through n The upper ratchet 11 is connected by gear transmission to achieve upper winding and power transmission, reducing redundant transmission components, reducing energy loss, and improving structural reliability.

[0037] Furthermore, the two adjacent upper ratchet wheels are connected by gear transmission and rotate synchronously. Furthermore, the prime mover mechanism is connected to... m 3,1≤ transmission mechanisms m ≤ n and m ∈N (N represents a natural number), m Each transmission mechanism is respectively connected to m The 211 gear drive of the cassette wheel is used during the string release process. n The torques of each of the carton wheels 211 are respectively superimposed on the torques of the... m The transmission mechanism with 3 gears is described. mOn each carton wheel 211, the drive of the m The transmission mechanism rotates 3 times.

[0038] Specifically, when multiple transmission mechanisms 3 are provided inside the dial, the first transmission mechanism 3 and the second transmission mechanism 3... i If the first carton wheel 211 is driven by a gear, then the second transmission mechanism 3 and the first... j Each box wheel 211 gear transmission, where 1≤ j ≤ n and j ∈N (N represents a natural number), and i Not equal to j The configuration of other transmission mechanisms 3 follows the same principle.

[0039] Furthermore, such as Figure 4 and Figure 5 As shown, when i = n At that time, the first n Each strip box wheel 211 is driven by the gears of the transmission mechanism. n The torque of each of the carton wheels 211 is synchronously superimposed on the first... n Carton wheel 211, the first n The total torque obtained by each carton wheel 211 is n The torque of each of the aforementioned carton wheels 211 is superimposed, the first... n The first carton wheel 211 is connected to the output end of the transmission mechanism 3 via gear transmission, so as to facilitate the first... n The total torque obtained by the first wheel 211 is transmitted to the transmission mechanism 3, the first... n The formula for calculating the total torque obtained by the 211 wheel is as follows: in, M 1 represents the full-load torque of the first carton wheel 211. R 1 represents the radius of the first carton wheel 211. M 2 represents the full-load torque of the second carton wheel 211. R 2 is the radius of the second carton wheel 211. M n For the first n The full-load torque of each 211 cassette wheelR n For the first n The radius of each carton wheel 211, The force applied by the first carton wheel 211 to the second carton wheel 211. The total torque obtained by the second carton wheel 211 The force applied by the second carton wheel 211 to the third carton wheel 211. The total torque obtained by the third carton wheel 211 For the first n -1 carton wheel 211 applied to the first n The force on the wheel 211 of the carton For the first n The total torque obtained on each box wheel 211.

[0040] Furthermore, two adjacent sprocket wheels 211 are directly engaged, and the two adjacent sprocket wheels 211 rotate in opposite directions. Two adjacent upper ratchet wheels 11 are also directly engaged, and the two adjacent upper ratchet wheels 11 rotate in opposite directions.

[0041] Furthermore, such as Figures 6 to 8 As shown, the prime mover mechanism 2 also includes a geared shaft 22, which simultaneously drives two adjacent sprocket wheels 211 to adjust the rotation direction of the two adjacent sprocket wheels 211. When a geared shaft 22 is provided between two adjacent sprocket wheels 211, the two adjacent sprocket wheels 211 rotate in the same direction. The drive mechanism also includes an upper feed wheel 12, which simultaneously drives two adjacent upper feed ratchet wheels 11 to adjust the rotation direction of the two adjacent upper feed ratchet wheels 11. When an upper feed wheel 12 is provided between two adjacent upper feed ratchet wheels 11, the two adjacent upper feed ratchet wheels 11 rotate in the same direction.

[0042] In this embodiment, when multiple carton wheels 211 are provided, the gear shaft 22 can be used to adjust the first... n -1 carton wheel 211 and the first n The rotation direction of the first carton wheel 211 is correspondingly to ensure the first... n Carton wheel 211 and the first n The rotation directions of the upper ratchet 11 are consistent, and the upper feed wheel 1 is set to adjust the first... n -1 upper ratchet 11 and the first n The direction of rotation of the upper ratchet.

[0043] Specifically, by setting the geared shaft 22 to simultaneously drive the gears of two adjacent barrel wheels 211, replacing the direct meshing of the two adjacent barrel wheels 211, the geared shaft 22 is used to adjust the direction relationship of the two adjacent barrel wheels 211 to ensure that the superposition direction of their torques is consistent; the winding wheel 12 simultaneously drives the gears of two adjacent winding ratchet wheels 11, replacing the direct meshing of the two adjacent winding ratchet wheels 11, the winding wheel 12 is used to adjust the direction of the two adjacent winding ratchet wheels 11 to adapt to the winding needs of multiple barrel wheels 211, so as to optimize the internal space of the watch.

[0044] Furthermore, such as Figures 1 to 11 As shown, the drive mechanism 1 includes a rotating shaft 13, a vertical wheel 14, and a winding wheel 15. The rotating shaft 13 passes through the center of the vertical wheel 14 and is fixedly connected to the vertical wheel 14. The vertical wheel 14 and the winding wheel 15 are connected by gears, and the winding wheel 15 and the first winding ratchet 11 are connected by gears.

[0045] Specifically, the rotating shaft 13 passes through the center of the vertical wheel 14 and is fixedly connected to it. The vertical wheel 14 and the upper winding wheel 15 are connected by gear transmission, forming the first stage of transmission for upper winding power input. Rotating the rotating shaft 13 drives the vertical wheel 14, which is fixed to it, to rotate. The vertical wheel 14 drives the upper winding wheel 15 to rotate through gear transmission.

[0046] Furthermore, the transmission mechanism 3 includes a two-wheel assembly 31, which includes two wheel plates 311 and two gear shafts 312. The two wheel plates 311 and the two gear shafts 312 are coaxially and fixedly connected. The two gear shafts 312 are connected to the first... n The transmission mechanism 3 further includes a three-wheel assembly 32 and a four-tooth shaft 33, wherein the two-tooth shaft 312 is connected to the first gear 211. i The three-wheel assembly 32 includes a three-wheel plate 321 and a three-tooth shaft 322. The three-wheel plate 321 and the three-tooth shaft 322 are coaxially fixed. The three-tooth shaft 322 meshes with the two-wheel plate 311, and the four-tooth shaft 33 meshes with the three-wheel plate 321.

[0047] Furthermore, the transmission structure for the multiple barrels of the watch also includes a tourbillon 4, with gear transmission between the tourbillon 4 and the second wheel 311.

[0048] Specifically, the four-tooth shaft 33 is coaxially and fixedly connected to the tourbillon 4.

[0049] Specifically, nThe power of the cassette wheel 211 is transmitted to the second gear 311 via the second gear shaft 312. The second gear 311 drives the third gear shaft 322 to rotate. The third gear shaft 322 drives the fourth gear shaft 33 through the third gear 321, and finally drives the tourbillon 4 to rotate, completing the complete transmission of power from the prime mover mechanism 2 to the tourbillon 4.

[0050] Furthermore, such as Figure 1 , Figure 6 and Figure 9 As shown, the transmission structure for the multiple winding barrel of the watch also includes a reverse-locking mechanism 5, which meshes with any of the winding ratchet 11 teeth and rotates in one direction.

[0051] Specifically, the anti-reverse mechanism 5 and the first n The upper ratchet 11 is engaged, allowing the upper ratchet 11 to rotate only in the winding direction (unidirectional rotation); when winding stops, the anti-reverse mechanism 5 can prevent the upper ratchet 11 from rotating in the opposite direction, avoid the backflow of energy from the mainspring 212, and ensure stable energy storage of the barrel wheel 211.

[0052] Preferably, the anti-reverse mechanism 5 and the first n The upper ratchet has 11 teeth engaged.

[0053] Furthermore, such as Figure 2 , Figure 7 and Figure 10 As shown, the transmission structure for the multiple watch cases also includes a lower clamping plate 6 and an upper clamping plate 7, wherein the lower clamping plate 6 is fixedly mounted on... n The upper clamping plate 7 is fixedly installed at the lower end of the carton wheel 211. n The upper end of the said carton wheel 211 is fixed. n The aforementioned carton wheel 211.

[0054] Specifically, the lower clamping plate 6 and the upper clamping plate 7 cooperate to prevent the... n The axial movement occurs in the cassette wheel 211, the transmission mechanism 3, and the gear shaft 22.

[0055] Specifically, the transmission mechanism 3 further includes a three-wheel clamping plate 8, which is disposed at the upper end of the three-tooth shaft 322. The three-wheel clamping plate 8 cooperates with the lower clamping plate 6 to prevent the three-wheel assembly 32 from moving axially.

[0056] Furthermore, such as Figure 1 , Figure 6 and Figure 9 As shown, the drive mechanism also includes an upper winding wheel 16, which is geared to the upper winding wheel 15 and the first upper winding ratchet 11 to adjust the layout of the prime mover 2.

[0057] Specifically, the winding interlock wheel 16 is simultaneously driven by the winding wheel 15 and the first winding ratchet 11, forming a transmission path of winding wheel 15 → winding interlock wheel 16 → first winding ratchet 11. The winding interlock wheel 16 adjusts the steering relationship between the winding wheel 15 and the first winding ratchet 11 to adapt to the space requirements of different movement layouts and ensure the smoothness of the winding process.

[0058] Optionally, a plurality of winding interlocking wheels 16 are sequentially arranged between the winding wheel 15 and the first winding ratchet 11 to optimize the internal space of the watch.

[0059] Example 1 like Figures 1 to 3 The illustrated embodiment 1 is a transmission structure for a multi-barrel watch. The barrel wheel assembly 21 includes a barrel wheel 211 and a mainspring 212. The barrel wheel 211 includes a first barrel wheel 2111 and a second barrel wheel 2112. The mainspring 212 includes a first mainspring 2121 and a second mainspring 2122. The winding ratchet 11 includes a first winding ratchet 111 and a second winding ratchet 112. During winding, the first winding ratchet 111 and the second winding ratchet 112 rotate synchronously, driving the first mainspring 2121 and the second mainspring 2122 to rotate synchronously, achieving synchronous winding. During unwinding, the first mainspring 2121 and the second mainspring 2122 unwind synchronously, driving the first barrel wheel 2111 and the second barrel wheel 2112 to rotate synchronously. The torques of the two barrel wheels 211 are synchronously superimposed on the second barrel wheel 2112, and the second barrel wheel 2112 drives the transmission mechanism to rotate. The drive mechanism also includes a rotating shaft 13, a vertical wheel 14, a winding wheel 15, and a winding intermediate wheel 16. The rotating shaft 13 passes through the center of the vertical wheel 14 and is fixedly connected to it. The vertical wheel 14 meshes with the winding wheel 15, and the winding wheel 15 meshes with the winding intermediate wheel 16, forming the first stage of transmission for winding power input. Rotating the rotating shaft 13 drives the vertical wheel 14, which is fixed to it, to rotate. The vertical wheel 14 drives the winding wheel 15 and the winding intermediate wheel 16 to rotate through tooth meshing.

[0060] The upper winding wheel 16 engages with the first upper winding ratchet 111, causing the first upper winding ratchet 111 and the second upper winding ratchet 112 to rotate simultaneously, thereby winding the first mainspring 2121 and the second mainspring 2122, forming the second stage of transmission for the power input of the winding. The first mainspring barrel 2111 and the second mainspring barrel 2112 rotate in opposite directions. The first mainspring 2121 and the second mainspring 2122 are unwound simultaneously, causing the first mainspring barrel 2111 and the second mainspring barrel 2112 to rotate simultaneously, thereby making the torque between the first mainspring barrel 2111 and the second mainspring barrel 2112 zero-cancellation.

[0061] The transmission mechanism 3 includes a two-wheel assembly 31, a three-wheel assembly 32, and a four-tooth shaft 33. The two-wheel assembly 31 includes two wheel plates 311 and a two-tooth shaft 312. The two-tooth shaft 312 is coaxially and fixedly connected to the two wheel plates 311 and meshes with the teeth of the second wheel 2112. The three-wheel assembly 32 includes three wheel plates 321 and a three-tooth shaft 322. The three wheel plates 321 and the three-tooth shaft 322 are coaxially and fixedly connected. The three-tooth shaft 322 meshes with the teeth of the two wheel plates 311. The four-tooth shaft 33 is coaxially and fixedly connected to the central tourbillon 4 and meshes with the teeth of the three wheel plates 321.

[0062] When the first wheel 2111 and the second wheel 2112 are the same, the torque received by the two-wheel assembly 31 is the sum of the torques output by the first wheel 2111 and the second wheel 2112, thus achieving torque superposition.

[0063] When the first winding wheel 2111 and the second winding wheel 2112 are not the same, the first winding wheel 2111 is the first winding wheel 211, and the second winding wheel 2112 is the second winding wheel 211. The second winding wheel 2112 is the output end. The number of teeth of the first winding wheel 2111 / the number of teeth of the second winding wheel 2112 = the number of teeth of the first upper ratchet 111 / the number of teeth of the second upper ratchet 112 = the number of turns of the mainspring 212 in the first winding wheel 2111 / the number of turns of the mainspring 212 in the second winding wheel 2112. The torque received by the two-wheel assembly 31 is calculated using the following formula: in, The force applied by the first carton wheel 211 to the second carton wheel 211. The total torque obtained for the second carton wheel 211.

[0064] Example 2 like Figures 6 to 8The illustrated embodiment two is another transmission structure for a multi-barrel watch. Based on embodiment one, a geared shaft 22 is provided between the first barrel wheel 2111 and the second barrel wheel 2112, and a winding wheel 12 is provided between the first winding ratchet 111 and the second winding ratchet 112. The geared shaft 22 meshes with the teeth of both the first barrel wheel 2111 and the second barrel wheel 2112, and the winding wheel 12 meshes with both the first winding ratchet 111 and the second winding ratchet 112. The number of teeth, the original direction of rotation, and the torque of the first barrel wheel 2111 and the second barrel wheel 2112 are exactly the same. The two-wheel assembly 31 also meshes only with the second barrel wheel 2112. By setting the geared shaft 22, the rotation directions of the first barrel wheel 2111 and the second barrel wheel 2112 are adjusted to be the same. By setting the winding wheel 12, the rotation directions of the first winding ratchet 111 and the second winding ratchet 112 are made to be the same.

[0065] In this process, the first winding ratchet 111 and the second winding ratchet 112 are driven to rotate simultaneously by rotating the shank 13. The release direction of the first mainspring 2121 and the second mainspring 2122 is the same as the rotation direction of their corresponding barrel wheel 211. In addition, multiple winding intermediate wheels 16 can be set between the winding wheel 15 and the first winding ratchet 111.

[0066] Example 3 like Figures 9 to 11 The illustrated embodiment three is another transmission structure for a multi-barrel watch. Based on embodiment one, a third barrel wheel 2113 and a third winding ratchet 113 are arranged between the first barrel wheel 2111 and the second barrel wheel 2112. The third winding ratchet 113 winds the third barrel wheel 2113 by driving the third mainspring 2123 to rotate. The third winding ratchet 113 simultaneously meshes with the second winding ratchet 112 and the first winding ratchet 111. The third barrel wheel 2113 simultaneously meshes with the first barrel wheel 2111 and the second barrel wheel 2112. The number of teeth, the original direction of rotation, and the torque of the first barrel wheel 2111 and the second barrel wheel 2112 are exactly the same. The number of teeth of the third barrel wheel 2113 is opposite to the original direction of rotation of the first barrel wheel 2111, and the torque is different. The instantaneous torque at the output end of the second cassette wheel 2112, which meshes with the two-wheel assembly 31, is a linear superposition of the instantaneous output torques of the three cassette wheels 211.

[0067] Three cassette wheel assemblies 21 are provided. The second cassette wheel 2112 is the third cassette wheel 211, the first cassette wheel 2111 is the first cassette wheel 211, and the third cassette wheel 2113 is the second cassette wheel 211. The third cassette wheel 211 meshes with the two-wheel assembly 31. The third cassette wheel 211 is the output end. The full-load torque of the first cassette wheel 211 is... M 1 radius isR 1. The full-load torque of the second carton wheel 211 is M 2 radius is R 2. The full-load torque of the third carton wheel 211 is M 3 radii are R 3. Calculate the total torque obtained by the third carton wheel 211, as shown in the following formula: in, The force applied by the first wheel 2111 to the third wheel 2113. The total torque obtained by the third wheel 2113 The force applied by the third wheel 2113 to the second wheel 2112, The total torque obtained by the second wheel 2112.

[0068] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A transmission structure for a multi-barrel watch case, characterized in that, include: A drive mechanism, a transmission mechanism, and a prime mover mechanism connecting the transmission mechanism and the drive mechanism; The prime mover mechanism includes n Individual carton wheel assembly, n The integer is a positive integer greater than or equal to 2. n The barrel wheel assemblies are arranged sequentially, and there is gear transmission between adjacent barrel wheel assemblies. Each barrel wheel assembly includes a barrel wheel and a mainspring. i The gear transmission between the cassette wheel and the transmission mechanism, 1≤ i ≤ n and i ∈N, the drive mechanism winds the mainspring, and the unwinding of the mainspring causes the barrel wheel to rotate; During the winding process, the drive mechanism drives n The mainsprings rotate synchronously to achieve synchronous winding. During the string release process, n The mainspring is wound synchronously, driving... n The aforementioned carton wheels rotate synchronously. n The torque of each of the aforementioned carton wheels is synchronously superimposed on the torque of the first wheel. i The first of the aforementioned carton wheels, the first i The aforementioned box wheels drive the transmission mechanism to rotate.

2. The transmission structure for a multi-barrel watch according to claim 1, characterized in that, The driving mechanism includes n The first upper ratchet, the first n The upper ratchet and the first n Each barrel wheel assembly is correspondingly configured, and the winding ratchet, barrel wheel, and mainspring must meet the following conditions: The first n- Number of teeth on a cassette wheel / number of teeth n The number of teeth on the first carton wheel = the number of teeth on the second carton wheel n- Number of teeth on one upper ratchet / number of teeth on the first ratchet n The number of teeth on the upper ratchet = the number of teeth on the first ratchet. n- Number of mainspring turns in one barrel wheel assembly / number of turns n The number of turns of the mainspring in each barrel wheel assembly.

3. The transmission structure for a multi-barrel watch according to claim 1, characterized in that, The prime mover mechanism is connected to m One transmission mechanism, 1≤ m ≤ n and m ∈N, m Each transmission mechanism is respectively connected to m Individual box wheel gear transmission.

4. The transmission structure for a multi-barrel watch according to claim 1, characterized in that, when i = n At that time, the first n The total torque obtained by each carton wheel is n The sum of the torques of the aforementioned carton wheels, the first n The first carton wheel is connected to the gear of the transmission mechanism at its output end, so as to facilitate the transmission of the first carton wheel. n The total torque obtained by the first wheel is transmitted to the transmission mechanism, and the first wheel... n The formula for calculating the total torque obtained by each carton wheel is as follows: in, M 1 represents the full-load torque of the first carton wheel. R 1 represents the radius of the first carton wheel. M 2 represents the full-load torque of the second carton wheel. R 2 is the radius of the second carton wheel. M n For the first n The full-load torque of each cassette wheel, R n For the first n The radius of each carton wheel, The force applied from the first carton wheel to the second carton wheel. The total torque obtained by the second carton wheel, The force applied by the second carton wheel to the third carton wheel. The total torque obtained for the third carton wheel, For the first n -1 carton wheel applied to the first n The force on each carton wheel For the first n The total torque obtained on each carton wheel.

5. The transmission structure for a multi-barrel watch according to claim 2, characterized in that, If two adjacent sprocket wheels are directly engaged, they will rotate in opposite directions. If two adjacent upper ratchet wheels are directly engaged, they will rotate in opposite directions.

6. The transmission structure for a multi-barrel watch according to claim 2, characterized in that, The prime mover mechanism also includes a toothed shaft, which meshes with the teeth of two adjacent sprocket wheels to adjust the rotation direction of the two adjacent sprocket wheels. If a toothed shaft is provided between two adjacent sprocket wheels, the two adjacent sprocket wheels will rotate in the same direction. The drive mechanism also includes an upper feed wheel, which meshes with the teeth of two adjacent upper feed ratchet wheels to adjust the rotation direction of the two adjacent upper feed ratchet wheels. If an upper feed wheel is provided between two adjacent upper feed ratchet wheels, the two adjacent upper feed ratchet wheels will rotate in the same direction.

7. The transmission structure for a multi-barrel watch according to claim 1, characterized in that, The transmission mechanism includes a two-wheel assembly, which includes two wheel plates and two gear shafts. The two wheel plates are coaxially and fixedly connected to the two gear shafts. The two gear shafts are connected to the first... i Gear transmission between the aforementioned box wheels.

8. The transmission structure for a multi-barrel watch according to claim 2, characterized in that, It also includes a backstop mechanism, which meshes with any of the upper ratchet teeth and rotates in one direction.

9. The transmission structure for a multi-barrel watch according to claim 2, characterized in that, The drive mechanism further includes a rotating shaft, a vertical wheel, and a winding wheel. The rotating shaft passes through the center of the vertical wheel and is fixedly connected to the vertical wheel. The vertical wheel and the winding wheel are connected by gears, and the winding wheel and the first winding ratchet are connected by gears.

10. The transmission structure for a multi-barrel watch according to claim 9, characterized in that, The drive mechanism also includes an upper winding wheel, which is connected to the upper winding wheel and the first upper winding ratchet gear to adjust the layout of the prime mover mechanism.

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