CN217443740U

CN217443740U - Mechanical watch movement precision control structure

Info

Publication number: CN217443740U
Application number: CN202221100205.3U
Authority: CN
Inventors: 曾光震
Original assignee: Individual
Current assignee: Jilin Dinghui Electronic Technology Co ltd
Priority date: 2022-05-10
Filing date: 2022-05-10
Publication date: 2022-09-16
Anticipated expiration: 2032-05-10

Abstract

The utility model relates to a mechanical watch core accuracy control structure, including setting up the second wheel in the core and by step motor driven rotor wheel, still be provided with in the core by the precision wheel II that the rotor wheel drove and by the precision wheel I that the second wheel drove, precision wheel I is provided with fender arm I along the circumferencial direction interval, precision wheel II is provided with the fender arm II that is used for blockking fender arm I along the circumferencial direction interval. The structure can reduce the processing difficulty of parts and improve the timing precision of the movement.

Description

Mechanical watch movement precision control structure

Technical Field

The utility model relates to a mechanical watch core accuracy control structure.

Background

At present, the precision control of the movement of a mechanical watch is controlled by an escapement system and a balance spring and balance wheel system. As shown in fig. 1, the balance spring member 1 and the balance member 2 oscillate back and forth at a fixed frequency to thereby oscillate the pallet member 3 at the fixed frequency, the pallet member 3 further controls the rotation speed of the escape wheel member 4 at the frequency, and the escape wheel member 4 and the second wheel member 5 are engaged at the corresponding gear ratio, thereby achieving the control of the travel time accuracy of the second wheel member 5. In this structure, the balance spring member 1, the balance wheel member 2, the pallet member 3, and the escape wheel member 4 have high accuracy requirements, and are difficult to process, and the quality is difficult to ensure, resulting in low processing efficiency and high cost. Meanwhile, the precision of the structure is difficult to control to be accurate, the precision of the current national standard for the mechanical watch is specified to be-30 seconds to +45 seconds of high-grade product day difference, and the precision requirements of other grade watches are lower.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a mechanical watch core accuracy control structure, this structure can reduce the spare part processing degree of difficulty to improve the precision of walking by time of core.

The technical scheme of the utility model lies in: the utility model provides a machinery watch movement accuracy control structure, is including setting up the second wheel in the core and the rotor wheel by step motor drive, still is provided with the precision wheel II that is driven by the rotor wheel in the core and the precision wheel I that is driven by the second wheel, precision wheel I is provided with fender arm I along the circumferencial direction interval, precision wheel II is provided with the fender arm II that is used for blockking fender arm I along the circumferencial direction interval.

Furthermore, the second wheel is connected with a flywheel I through a transmission gear pair in a transmission mode.

Furthermore, flywheel I is fixed in the pivot, decorative disc I is installed to the axle head that the core was worn out in the pivot.

Furthermore, the transmission gear pair comprises a transmission wheel I in transmission connection with the second wheel, the transmission wheel I is meshed with a transmission wheel II, and the transmission wheel II is meshed with the flywheel I.

Furthermore, the transmission wheel II is also meshed with a transition wheel, the transition wheel is meshed with a flywheel II with the rotation direction opposite to that of the flywheel I, and the flywheel II is sleeved on a rotating shaft of the flywheel I.

Furthermore, flywheel II is fixed in on the central siphon, the central siphon cover is arranged in on the pivot of flywheel I, and decorative disc II is installed to the axle head that the core was worn out to the central siphon.

Compared with the prior art, the utility model has the advantages of it is following: the structure can reduce the processing difficulty of parts, improve the time precision of the movement and achieve the precision of the quartz watch, and the precision of the pointer type quartz watch superior product is specified to be within +/-0.5 second of the day difference in the current national standard.

Drawings

FIG. 1 is a diagram of a precision control structure of a conventional mechanical watch movement;

FIG. 2 is a cross-sectional view A-A1-A2-A3-A4-A of FIG. 1;

FIG. 3 is a schematic view of a back structure of a mechanical watch movement according to the present invention;

FIG. 4 is a cross-sectional view of the present invention taken along line D-D3-D2-D1-B4-D of FIG. 3;

FIG. 5 is a schematic diagram of the matching between the precision wheel I and the precision wheel II of the present invention;

FIG. 6 is a schematic diagram of a front structure of a mechanical watch movement according to the present invention;

FIG. 7 is a cross-sectional view of the utility model shown in FIG. 6B-B1-B2-B3-B4-B;

FIG. 8 is a cross-sectional view of the utility model of FIG. 6, taken along line C-B2-C1-B1-C;

in the figure: 1-a balance spring component 2-a balance wheel component 3-an escape fork component 4-an escape wheel component 5-a second wheel component 6-a second wheel 7-a driving wheel 8-a driving wheel 9-a flywheel I11-a passing wheel 12-a flywheel II 13-a shaft end 14 of a shaft tube, a precision wheel I15-a precision wheel II 16-a rotor wheel 17-a stepping motor 18-a shaft end 19 of a rotating shaft, a stop arm II 20-a stop arm I.

Detailed Description

In order to make the aforementioned features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below, but the present invention is not limited thereto.

Refer to fig. 3 to 8

A mechanical watch movement precision control structure comprises a second wheel 6 and a rotor wheel 16, wherein the second wheel 6 is arranged in a movement, the rotor wheel 16 is driven by a stepping motor 17, a precision wheel II 15 driven by the rotor wheel and a precision wheel I14 driven by the second wheel are further arranged in the movement, blocking arms I20 are arranged on the precision wheel I at intervals in the circumferential direction, and blocking arms II 19 used for blocking the blocking arms I are arranged on the precision wheel II at intervals in the circumferential direction. For more precise control of the accuracy, the stepping motor 17 is designed so as to bring the accuracy to the accuracy of the quartz watch. The precision wheel II 15 and the precision wheel I14 rotate according to corresponding rotating speeds, when the stop arm I20 on the precision wheel I14 rotates to the stop arm II 19 on the precision wheel II 15, the stop arm cannot rotate, and the stop arm cannot rotate until the precision wheel II 15 rotates. Therefore, the rotation precision of the precision wheel I14 is completely controlled by the rotation precision of the precision wheel II 15, and the second wheel precision is further controlled, so that the precision of the quartz watch is achieved.

In this embodiment, the control system of the stepper motor may be designed to pulse one second. In order to save the battery power, the control system of the stepping motor can be designed to be 15 seconds, 20 seconds or 30 seconds for one pulse, and only the transmission ratio among the rotor wheel 16, the precision wheel II 15 and the precision wheel I14 needs to be changed.

In the embodiment, in order to prevent the precision control part from bearing excessive moment from the second wheel, the second wheel is also connected with a flywheel I9 in a transmission way through a transmission gear pair. The purpose of the structural design of the flywheel is to unload part of the second wheel moment, and the purpose is that the high-speed rotation of the flywheel has ornamental value, so that the appearance of the watch is improved.

In this embodiment, in order to increase the aesthetic measure of the watch, the flywheel i is fixed on the rotating shaft, and the shaft end 18 of the rotating shaft penetrating through the movement can be provided with the decorative disc i.

In this embodiment, the transmission gear pair includes drive wheel I7 of being connected with the second wheel transmission, drive wheel I meshes there is drive wheel II 8, drive wheel II meshes with flywheel I mutually to drive wheel I7 through second wheel 6, drive wheel I7 drives drive wheel II 8, drive wheel II 8 drives flywheel I9, through tertiary acceleration rate, makes flywheel I9 reach high-speed rotation, makes decorative disc I installed on the pivot axle head of flywheel I have the sight, improves pleasing to the eye degree.

In the embodiment, in order to have more ornamental value, the driving wheel II is further meshed with a transition wheel 11, the transition wheel is meshed with a flywheel II 12, the rotation direction of the flywheel II is opposite to that of the flywheel I, the flywheel II is fixed on a shaft tube, the shaft tube is sleeved on a rotating shaft of the flywheel I, and a decorative disc II is installed on a shaft end 13 of the shaft tube penetrating out of the machine core.

The utility model discloses if disclose or related to mutual fixed connection's spare part or structure, then, except that other the note, fixed connection can understand: a detachable fixed connection (for example using bolts or screws) is also understood as: non-detachable fixed connections (e.g. riveting, welding), but of course, fixed connections to each other may also be replaced by one-piece structures (e.g. manufactured integrally using a casting process) (unless it is obviously impossible to use an integral forming process).

In addition, the terms used in any aspect of the present disclosure as described above to indicate positional relationships or shapes include similar, analogous, or approximate states or shapes unless otherwise stated.

The utility model provides an arbitrary part both can be assembled by a plurality of solitary component parts and form, also can be the solitary part that the integrated into one piece technology was made.

The above is only the preferred embodiment of the present invention, and all the equivalent changes and modifications made according to the claims of the present invention should be covered by the present invention.

Claims

1. The mechanical watch movement precision control structure is characterized by comprising a second wheel and a rotor wheel, wherein the second wheel is arranged in the movement, the rotor wheel is driven by a stepping motor, a precision wheel II driven by the rotor wheel and a precision wheel I driven by the second wheel are further arranged in the movement, blocking arms I are arranged on the precision wheel I at intervals in the circumferential direction, and blocking arms II used for blocking the blocking arms I are arranged on the precision wheel II at intervals in the circumferential direction.

2. The mechanical watch movement precision control structure according to claim 1, wherein the second wheel is further connected with a flywheel I through a transmission gear pair in a transmission manner.

3. The mechanical watch movement precision control structure according to claim 2, wherein the flywheel I is fixed on a rotating shaft, and a decorative disc I is installed at the shaft end of the rotating shaft, which penetrates out of the movement.

4. The precision control structure of the movement of the mechanical watch according to claim 2 or 3, wherein the transmission gear pair comprises a transmission wheel I in transmission connection with a second wheel, the transmission wheel I is meshed with a transmission wheel II, and the transmission wheel II is meshed with the flywheel I.

5. The mechanical watch movement precision control structure according to claim 4, wherein the transmission wheel II is further meshed with a transition wheel, the transition wheel is meshed with a flywheel II with a rotation direction opposite to that of the flywheel I, and the flywheel II is sleeved on a rotating shaft of the flywheel I.

6. The mechanical watch movement precision control structure according to claim 5, wherein the flywheel II is fixed on a shaft tube, the shaft tube is sleeved on a rotating shaft of the flywheel I, and a decorative disc II is installed at the shaft end of the shaft tube, which penetrates out of the movement.