Day changing wheel assembly of double-calendar mechanical movement

Abstract

The utility model provides a date changing wheel assembly of a double-calendar mechanical movement, which relates to the technical field of date changing wheel assemblies and comprises a date changing wheel shaft, a cam is fixedly sleeved on the outer surface wall of the date changing wheel shaft, and a date changing wheel sheet is fixedly sleeved on the outer surface wall of the date changing wheel shaft. According to the utility model, when the hour wheel in the mechanical watch rotates, the date changing wheel sheet engaged with the hour wheel is driven to rotate together and the date changing rotating shaft is also driven to rotate together, and the date changing rotating shaft drives the double-calendar shifting block to rotate and drives the contact I and the contact II to respectively push the calendar ring and the week calendar ring to jump teeth; the geometrical shapes of the date changing wheel piece and the double-calendar shifting block are optimized, so that the date changing wheel piece and the double-calendar shifting block can work accurately and efficiently, it is ensured that the date changing wheel piece is accurately matched with the hour wheel in the rotating process, and therefore quick and accurate date changing is achieved, friction and vibration generated when the date changing wheel assembly works can be effectively reduced, and the service life of the date changing wheel assembly is prolonged. The service life of the date changing wheel assembly is prolonged, noise generated when the date changing wheel assembly works is effectively reduced, and the use experience of a user is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of a date-changing wheel assembly, in particular to a date-changing wheel assembly of a dual-calendar mechanical movement. Background Art

[0002] The date wheel assembly is a key component in the retrograde calendar mechanism. It is mainly composed of a date wheel and a cam combined by pins. There is no relative rotation between them. The working principle of this assembly is to use the lift of the vertical outer edge contour of the cam to drive the retrograde calendar fan wheel to rotate.

[0003] The existing date-changing wheel assembly has a poor geometric shape, which easily leads to greater resistance when rotating, thereby reducing the speed of changing the day and even causing the calendar to freeze or delay when switching, affecting the user experience. The poor geometric shape will also cause greater friction and stress when the component is working, which will aggravate the wear of internal components and reduce the service life of the date-changing wheel assembly. Utility Model Content

[0004] The purpose of the utility model is to solve the problem that the calendar switching work is affected and the service life is reduced due to the poor geometric shape of the above-mentioned device when in use, and thus a date-changing wheel assembly of a dual-calendar mechanical movement is proposed.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a date-changing wheel assembly of a dual-calendar mechanical movement, comprising a date-changing wheel shaft, and a cam is arranged on a fixed sleeve on the outer wall of the date-changing wheel shaft.

[0006] Preferably, a sun-changing wheel sheet is provided on the outer wall fixing sleeve of the sun-changing wheel shaft.

[0007] Preferably, a fixed sleeve on the outer wall of the date-changing wheel shaft is provided with a double calendar dial.

[0008] Preferably, the dual calendar dial includes a dial seat.

[0009] Preferably, the outer wall of the dial head seat is provided with two contacts 1.

[0010] Preferably, the outer wall of the dial head seat is provided with two contacts 2.

[0011] Compared with the prior art, the advantages and positive effects of the utility model are:

[0012] 1. In the present invention, when the hour wheel inside the mechanical watch rotates, the day-changing wheel piece meshingly connected therewith will be driven to rotate together, and the day-changing shaft will also rotate together. The day-changing shaft will drive the dual calendar dial head to rotate, driving contact one and contact two to push the calendar ring and the weekly calendar ring to jump teeth respectively. The geometric shapes of the day-changing wheel piece and the dual calendar dial head are optimized so that they can work accurately and efficiently, ensuring that the day-changing wheel piece is precisely matched with the hour wheel during rotation, thereby realizing fast and accurate date change, and can also effectively reduce the friction and vibration generated by the day-changing wheel assembly during operation, thereby increasing the service life of the day-changing wheel assembly, and effectively reducing the noise generated during operation, thereby improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The utility model provides a schematic diagram of the main structure of a date-changing wheel assembly of a dual-calendar mechanical movement;

[0014] Figure 2 The utility model provides a top view of the main structure of the date wheel assembly of a dual calendar mechanical movement;

[0015] Figure 3 The utility model provides a plan view of the structure of a day-changing wheel shaft in a day-changing wheel assembly of a dual-calendar mechanical movement;

[0016] Figure 4 The utility model provides a planar exploded view of the cam structure in the date-changing wheel assembly of a dual-calendar mechanical movement;

[0017] Figure 5 The utility model provides a schematic plan view of the structure of a day-changing wheel piece in a day-changing wheel assembly of a dual-calendar mechanical movement;

[0018] Figure 6 The utility model provides a top view of a double calendar dial structure in a date wheel assembly of a double calendar mechanical movement.

[0019] Legend:

[0020] 1. Date-changing wheel shaft; 2. Cam; 3. Date-changing wheel piece; 4. Dual calendar dial head; 410, dial head seat; 420, contact one; 430, contact two. DETAILED DESCRIPTION

[0021] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0022] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0023] Examples, such as Figure 1-Figure 6 As shown, the utility model provides a date-changing wheel assembly of a dual-calendar mechanical movement, including a date-changing wheel shaft 1, a cam 2 is provided on the outer wall fixing sleeve of the date-changing wheel shaft 1, a date-changing wheel piece 3 is provided on the outer wall fixing sleeve of the date-changing wheel shaft 1, a dual-calendar dial head 4 is provided on the outer wall fixing sleeve of the date-changing wheel shaft 1, the dual-calendar dial head 4 includes a dial head seat 410, two contacts 1 420 are provided on the outer wall of the dial head seat 410, and two contacts 2 430 are provided on the outer wall of the dial head seat 410.

[0024] The effect achieved by the entire embodiment is that the date-changing wheel 3 is meshed and connected with the hour wheel inside the mechanical watch. When the hour wheel rotates, it will drive the date-changing wheel 3 to rotate together. Then the date-changing wheel 3 can drive the cam 2 to start rotating. The cam 2 makes the internal date-changing wheel shaft 1 start rotating, and drives the double calendar dial head 4 on the outer wall to rotate together, so that the dial head seat 410 drives contact 1 420 and contact 2 430 to start rotating. When contact 1 420 rotates, it will drive the calendar disk numbers to change through the calendar ring jump teeth. When contact 2 430 rotates, it will drive the weekly calendar disk numbers to change through the weekly calendar ring jump teeth, so that the machine completes the date change. The geometric shapes of the date-changing wheel 3 and the double calendar dial head 4 in this component are improved, which can not only make them more stable and efficient when rotating, reduce noise generation, and improve comfort of use, but also extend the service life of the date-changing wheel.

[0025] Working principle: When the hour wheel starts to rotate, the date-changing wheel piece 3 meshing with the hour wheel is driven to rotate together. When the date-changing wheel piece 3 is driven, the geometric shape of the date-changing wheel piece 3 has been improved, and the transmission effect is more efficient than that of ordinary wheels. Then the date-changing wheel piece 3 will drive the cam 2 to rotate together, and then the cam 2 will drive the date-changing wheel shaft 1 on the inner wall to start rotating. When the date-changing wheel shaft 1 rotates, it will drive the double calendar dial head 4 to rotate together. When the double calendar dial head 4 rotates, it will drive the outer surface through the dial head seat 410 Contact 1 420 and contact 2 430 set on the wall begin to rotate. When contact 1 420 begins to rotate, it will push the calendar ring jumping teeth in contact with it to move, thereby driving the numbers on the calendar disk on the mechanical watch to jump. When contact 2 430 begins to rotate, it will drive the week calendar ring jumping teeth in contact with it to move, causing the numbers on the week calendar disk to jump. The geometric dimensions of contact 1 420 and contact 2 430 are also improved to make the coordination with adjacent jumping teeth more precise, which can improve the speed and accuracy of date change.

[0026] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A date wheel assembly for a dual-calendar mechanical movement, comprising a date wheel shaft (1), characterized in that: The outer wall fixing sleeve of the sun-changing wheel shaft (1) is provided with a cam (2), the outer wall fixing sleeve of the sun-changing wheel shaft (1) is provided with a sun-changing wheel plate (3), the outer wall fixing sleeve of the sun-changing wheel shaft (1) is provided with a double calendar dial head (4), the double calendar dial head (4) comprises a dial head seat (410), the outer wall of the dial head seat (410) is provided with two first contacts (420), and the outer wall of the dial head seat (410) is provided with two second contacts (430).

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