CN214011741U

CN214011741U - Simple and reliable middle-placed tourbillon mechanism

Info

Publication number: CN214011741U
Application number: CN202023201458.3U
Authority: CN
Inventors: 王奇; 杨桦; 潘伟
Original assignee: Hangzhou Watch Co ltd
Current assignee: Hangzhou Watch Co ltd
Priority date: 2020-12-25
Filing date: 2020-12-25
Publication date: 2021-08-20
Anticipated expiration: 2030-12-25

Abstract

The utility model discloses a simple and reliable middle-placed tourbillon mechanism, which comprises a main clamping plate, wherein the main clamping plate is provided with an annular minute wheel, the main clamping plate is provided with 3 bearings capable of rotating, and the rotating axes of the bearings are vertical to the plane extending direction of the main clamping plate; the intersection points of the 3 bearing axes and the plane of the main clamping plate are not positioned on the same straight line; the inner side wall of the minute wheel is tangent to the side walls of the 3 bearings at the same time. The utility model has the advantages that: on the premise of not reducing the original effect, the structure is simplified and optimized, the energy loss of friction is reduced, and the transmission efficiency is improved.

Description

Simple and reliable middle-placed tourbillon mechanism

Technical Field

The utility model belongs to the wrist-watch field specifically is a simple reliable put top flywheel mechanism in.

Background

Chinese patent document CN2927127Y discloses a "middle tourbillon watch hand-moving mechanism" in 2007, 7/25, which includes a barrel wheel assembly, and is characterized in that a minute wheel ring and a hour wheel ring concentrically arranged with the minute wheel ring are arranged at the center of the watch, the minute wheel ring is connected with the minute hand, the hour wheel ring is connected with the hour hand, the hour wheel ring is connected with a hour speed regulating component, the hour speed regulating component is connected with a span wheel component, the minute wheel ring is engaged with the minute speed regulating component, the minute speed regulating component is connected with a span wheel component, the span wheel component is frictionally connected with a main transmission wheel, and the main transmission wheel is engaged with the barrel wheel assembly. The utility model has the advantages that break through the mode of traditional mechanism completely, can satisfy big specification top flywheel mechanism and occupy table machine central point and put special condition, can accord with the pointer indication mechanism that walks of clock and watch hour minute hand instruction vision custom again, really is a pernicious mechanism. The utility model relates to a walk needle system still has the development of extending other neotype special wrist-watches, improves the grade of wrist-watch. In the prior art, the tourbillon is arranged in the middle, so that a plurality of problems are caused: the radius of the minute wheel of the hour wheel is obviously increased, and the friction force is increased when the minute wheel rotates, so that the energy consumption is increased; the friction structure on the minute wheel is difficult to arrange; after the residual space is compressed, the layout of parts is difficult, the length of a transmission chain is long, and the travel precision is not easy to guarantee; the thickness of the movement cannot be reduced.

SUMMERY OF THE UTILITY MODEL

Based on the problem, the utility model provides a top flywheel mechanism in simple reliable reduces under the prerequisite of original effect, simplifies, has optimized the structure, has reduced the energy loss of friction, has improved transmission efficiency.

In order to realize the purpose of the invention, the utility model adopts the following technical scheme: a simple and reliable middle-placed tourbillon mechanism comprises a main clamping plate, wherein an annular minute wheel is arranged on the main clamping plate, 3 bearings capable of rotating automatically are mounted on the main clamping plate, and the rotating axes of the bearings are perpendicular to the plane extending direction of the main clamping plate; the intersection points of the 3 bearing axes and the plane of the main clamping plate are not positioned on the same straight line; the inner side wall of the minute wheel is tangent to the side walls of the 3 bearings at the same time.

According to the simple and reliable middle tourbillon mechanism designed by the technical scheme, the main clamping plate is provided with the annular sub-wheel, the annular diameter of the sub-wheel can be designed to be larger, and the inner side space is enough for accommodating the tourbillon structure. The positioning of the minute wheel takes the form of a triangular positioning. In this scheme, fixed mounting sets up 3 bearings on the plate main, and the bearing axial perpendicular to plate main after the fixing, and the bearing can be around axis rotation. Three points which are not on the same straight line on the plane can determine a triangle, and the intersection points of the axes of the 3 bearings and the plane of the main clamping plate are not on the same straight line, so that the fixed shape of the triangle can be determined through the 3 points, and then the inner side wall of the minute wheel is tangent to the outer side walls of the 3 bearings at the same time, thereby realizing the effect of fixing the position of the minute wheel. The watch is positioned by using a method of tangency of 3 bearings, a traditional sliding friction mode is changed into a rolling friction mode, the minute wheel only has 3 tangency points tangent to the bearings, the contact surface is very small, and the resistance of the rolling friction is also very small, so that the energy is well saved, and the travel time of the watch under the same energy storage condition can be effectively prolonged. The arrangement positions of the 3 bearings on the main clamping plate can be three fixed points of an equilateral triangle, and can be determined by a person skilled in the art according to the actual part layout.

Preferably, the bearing is a jewel bearing. The jewel bearing has the advantages of volume, light weight and good wear resistance, and is the preferred bearing in the watch.

Preferably, the device also comprises a main second wheel and a secondary second wheel which have the same shape and size, coincident axes and are parallel in radial direction; the middle part of the main second wheel extends upwards along the axial direction and is provided with a second wheel shaft, and a friction sleeve is fixed on the second wheel shaft; a pair of elastic clamping pieces are symmetrically arranged from the middle part of the two wheels, and the length extension directions of the elastic clamping pieces are parallel to each other; the outer side wall of the friction sleeve is clamped between the two elastic clamping pieces. The scheme moves the traditional friction structure arranged on the sub-wheel to two wheels. Specifically, the two wheels in the scheme comprise a main two wheel and a secondary two wheel which are completely equal in shape and size, the two wheels are coaxially arranged, and the two wheels are radially parallel to each other. Wherein, the middle part of the main second wheel is provided with a second wheel shaft along the axial direction, and a friction sleeve is fixed on the second wheel shaft, and the pressing way is usually selected. A pair of elastic clamping pieces are symmetrically designed on the wheel piece of the two wheels, and the space from the outer side of each elastic clamping piece to the edge of the wheel piece can be generally hollowed out, so that the elastic clamping pieces elastically deform towards the outer side, and a long hole is formed in the gap between the two elastic clamping pieces. The long hole is sleeved outside the friction sleeve, and the short hole diameter of the long hole is slightly smaller than the outer diameter of the friction sleeve, so that the inner side surfaces of the two elastic clamping pieces elastically clamp the outer side wall of the friction sleeve, and the driven two wheels are sleeved on the two wheel shafts. In the structure, when the bicycle normally walks, the driven two wheels are fixed with the two wheel shafts through static friction force and drive the main two wheels to synchronously rotate, the driven two wheels can drive the main two wheels to rotate by depending on enough static friction force, and when the sub-wheels are required to be quickly adjusted, the moment applied to the driven two wheels is greater than the friction moment, so that the inner side surfaces of the two elastic clamping pieces and the outer side wall of the friction sleeve slide, the driven two wheels can rotate relative to the main two wheels, and the normal work of the walking part cannot be influenced. The static friction force between the inner side surfaces of the two elastic clamping pieces and the outer side wall of the friction sleeve can be adjusted by adjusting the geometric parameters, the surface flatness and the like of the elastic clamping pieces, and is specifically selected by a person skilled in the art according to design requirements.

Preferably, the outer side wall of the friction sleeve is provided with a structure for preventing the elastic clamping piece from falling off. Such a structure may be a pin lock, a nut lock, an interference lock, etc., and a person skilled in the art may select a suitable manner as desired.

Preferably, the device also comprises an hour wheel and a third wheel; the hour wheel is annular and is concentrically sleeved outside the annular minute wheel; the intermediate gear is coaxially provided with an upper intermediate gear, a middle intermediate gear and a lower intermediate gear, the upper intermediate gear is meshed with the hour wheel, the middle intermediate gear is meshed with the minute wheel, and the lower intermediate gear is meshed with the secondary wheel. The annular hour wheel is sleeved outside the minute wheel. The third wheel designed in the scheme comprises an upper ring of teeth, a middle ring of teeth and a lower ring of teeth which are coaxially designed, wherein the upper teeth of the third wheel are meshed with the hour wheel, the middle teeth of the third wheel are meshed with the minute wheel, and the lower teeth of the third wheel are meshed with the secondary wheel, so that the traditional wheel spanning is not needed. The watch has the advantages that the wheel is eliminated, the transmission chain is reduced, the transmission efficiency is improved, the travel precision is improved, and the travel time of the watch under the same energy storage condition is effectively prolonged.

Preferably, the needle poking device further comprises a needle poking wheel; the needle-poking wheel is meshed with the minute wheel. The setting wheel can be generally designed to be meshed with the minute wheel to follow up, and then the setting wheel is set to rotate through other structures, so that the rotation of the minute wheel is formed, and the setting effect is achieved.

Preferably, the barrel wheel is meshed with the main second wheel, and the projection of the barrel wheel and the main second wheel in the axial direction of the main shaft is not coincident. Through the design, the barrel wheel and the main wheel can be positioned on the same plane without mutual interference, so that the space in the watch can be effectively utilized, and the thickness of the watch case is reduced.

To sum up, the beneficial effects of the utility model are that: on the premise of not reducing the original effect, the structure is simplified and optimized, the energy loss of friction is reduced, and the transmission efficiency is improved.

Drawings

Fig. 1 is a schematic view of the transmission system of the present invention.

Fig. 2 is a perspective view of the present invention.

Fig. 3 is a schematic diagram of time and minute wheel support and quick dial.

Fig. 4 is a schematic structural view of a two-wheel assembly.

FIG. 5 is an axial cross-sectional view of a two wheel assembly.

Fig. 6 is a schematic structural view of the idler.

Wherein: the structure comprises a 1 tourbillon structure, a 2 hour wheel, a 3 minute wheel, a 4 bearing, a 5 main clamping plate, a 6 secondary wheel, a 61 secondary wheel, a 62 friction sleeve, a 63 secondary wheel shaft, a 64 clamping piece outer hole, a 65 elastic clamping piece, a 7 third wheel, a 71 third wheel upper tooth, a 72 third wheel middle tooth, a 73 third wheel lower tooth, an 8 clutch wheel, a 9 setting wheel, 10 box wheels, an 11 intermediate wheel and a 12 tricycle.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description.

As shown in fig. 1, the present embodiment is a simple and reliable middle tourbillon mechanism, which includes a tourbillon structure 1, an hour wheel 2, a minute wheel 3, a bearing 4, a main clamp plate 5, a two-wheel assembly, a third wheel 7, a clutch wheel 8, a setting wheel 9, a barrel wheel 10, an intermediate wheel 11, a third wheel 12, and the like.

As shown in fig. 2 and 3, the hour wheel 2 and the minute wheel 3 are both annular and are mounted on the main plate 5. A virtual equilateral triangle is arranged on the extension plane of the main clamping plate 5, a bearing 4 capable of rotating is fixed on each vertex angle of the triangle through a pressing nail, and the rotating shaft is perpendicular to the extension plane of the main clamping plate 5. The inner side wall of the ring of the minute wheel 3 is tangent to the outer side wall of the 3 bearings 4 at the same time. The inner space of the partial wheel 3 is used to accommodate the tourbillon structure 1, and the outer space is surrounded by the hour wheel 2 which is also annular. The bearings 4 used in this example are jewel bearings.

As shown in fig. 4 and 5, the two-wheel assembly in this example includes a main two-wheel 6 and a secondary two-wheel 61, which have the same shape and size and are assembled together in such a manner that their axes are coincident and radially parallel. Specifically, see. The middle part of the main second wheel 6 is provided with a friction step 62 upwards along the axial direction, and the end surface of the friction step 62 is parallel to the radial direction of the main second wheel 6. A second wheel shaft 63 is fixedly arranged at the center point of the main second wheel 6 along the axial direction, a friction sleeve 62 is fixedly arranged on the second wheel shaft 63 in a press-fitting mode, the friction sleeve 62 in the embodiment is in a two-layer step rotating body shape with a small upper part and a large lower part, and the side wall surface of the step between the steps is a friction surface. A pair of elastic clamping pieces 65 are symmetrically designed on the wheel piece of the two wheels 61, and the outer sides of the elastic clamping pieces 65 are hollowed to form clamping piece outer holes 64 so that the elastic clamping pieces 65 can elastically deform outwards. The gap between the two elastic clamping pieces 65 forms a long hole which is sleeved on the friction sleeve 62, and the inner side surfaces of the two elastic clamping pieces 65 are elastically clamped on the friction surface of the friction sleeve 62, so that the secondary wheel 61 is sleeved on the secondary wheel shaft 63. The outer side of the upper step of the friction sleeve 62 is provided with a reverse tapered anti-loosening design with a large upper part and a small lower part so as to prevent the long hole from loosening from the two-wheel shaft 63. When the bicycle is normally used, the secondary wheels 61 can drive the main two wheels 6 to rotate by means of sufficient static friction force, and when the sub-wheels are required to be adjusted quickly, the moment applied to the secondary wheels 61 is greater than the friction moment, so that the inner side surfaces of the two elastic clamping pieces 65 and the outer side surface of the upper step of the friction sleeve 62 slip, the secondary wheels 61 can rotate relative to the main two wheels 6, and normal work of the walking part cannot be influenced.

As shown in fig. 6, the third wheel 7 in this example includes an upper third wheel tooth 71, a middle third wheel tooth 72, and a lower third wheel tooth 73, which are coaxially disposed. When assembled in the state shown in fig. 1, the upper third gear teeth 71 are engaged with the hour wheel 2, the middle third gear teeth 72 are engaged with the minute wheel 3, and the lower third gear teeth 73 are engaged with the second driven wheel 61. By this design, the conventional structure of the straddle wheel can be eliminated, and the idler wheel 7 directly drives the hour wheel 2 and the minute wheel 3.

Returning to fig. 1, as shown, the barrel wheel 10 is engaged with the main second wheel 6 through the intermediate wheel 11, and the projection of the barrel wheel 10 and the main second wheel 6 in the axial direction of the main shaft is not coincident, and the two are on the same horizontal plane. The shifting wheel 9 is meshed with the minute wheel 3 to follow up in a normal state, when the needle needs to be shifted, the clutch wheel 8 is axially translated, the clutch wheel 8 and the shifting wheel 9 are in a meshed state, the clutch wheel 8 is rotated to drive the shifting wheel 9 to rotate, and then the minute wheel 3 is driven to rotate.

In the middle-placed tourbillon mechanism of the embodiment, the tourbillon structure is good in layout, light in friction resistance, small in power loss, short in transmission chain, more direct in energy transmission, more accurate in walking, and meanwhile, the number of parts is reduced, and the positions of the parts are adjusted, so that the diameter and the thickness of a watch case can be smaller and thinner than those of a traditional structure.

Claims

1. A simple and reliable middle-placed tourbillon mechanism comprises a main clamping plate (5), wherein an annular minute wheel (3) is arranged on the main clamping plate (5), and the mechanism is characterized in that 3 bearings (4) capable of rotating are arranged on the main clamping plate (5), and the rotating axis of each jewel bearing (4) is vertical to the plane extension direction of the main clamping plate (5); the intersection points of the axes of the 3 bearings (4) and the plane of the main clamping plate (5) are not positioned on the same straight line; the inner side wall of the minute wheel (3) is tangent to the side walls of the 3 bearings (4) simultaneously.

2. The simple and reliable centrally-mounted tourbillon mechanism of claim 1, wherein the bearing is a jewel bearing.

3. A simple and reliable centrally-mounted tourbillon mechanism according to claim 1 or 2, further comprising a primary second wheel (6) and a secondary second wheel (61) having the same shape and size, coincident with each other and parallel to each other in radial direction; the middle part of the main second wheel (6) extends upwards along the axial direction and is provided with a second wheel shaft (63), and a friction sleeve (62) is fixed on the second wheel shaft; a pair of elastic clamping pieces (65) are symmetrically arranged from the middle part of the second wheel (61), and the length extension directions are parallel to each other; the outer side wall of the friction sleeve (62) is clamped between the two elastic clamping pieces (65).

4. A simple and reliable centrally-mounted tourbillon mechanism according to claim 3, wherein the outer side wall of the friction sleeve (62) is provided with means for preventing the elastic clip (65) from coming out.

5. A simple and reliable centrally-mounted tourbillon mechanism according to claim 3, further comprising an hour wheel (2) and a third wheel (7); the hour wheel (2) is annular and is concentrically sleeved outside the ring of the minute wheel (3); the intermediate wheel (7) is coaxially provided with an upper intermediate wheel tooth (71), a middle intermediate wheel tooth (72) and a lower intermediate wheel tooth (73), the upper intermediate wheel tooth (71) is meshed with the hour wheel (2), the middle intermediate wheel tooth (72) is meshed with the minute wheel (3), and the lower intermediate wheel tooth (73) is meshed with the secondary wheel (61).

6. A simple and reliable centrally placed tourbillon mechanism according to claim 1 or 2, further comprising a setting wheel (9); the needle-setting wheel (9) is meshed with the minute wheel (3).

7. A simple and reliable centrally-mounted tourbillon mechanism according to claim 1 or 2, further comprising a barrel wheel (10) engaged with the main second wheel (6), wherein the barrel wheel (10) is not coincident with the main second wheel (6) in projection in the axial direction of the main shaft.