Balance wheel assembly mechanism

By using sapphire clamps and "T"-shaped pendulum ply in mechanical watches, combined with shock absorbers and inertia adjustment components, the friction and space occupation problems of balance spring mechanism are solved, and precise positioning and shock absorption of mechanical watches are achieved. Improves earthquake resistance and aesthetics.

CN118746911BActive Publication Date: 2025-01-17深圳市贝伦斯智能穿戴科技有限公司
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Patent Information

Application Number
CN202411168247.4
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-08-23
Publication Date
2025-01-17
Estimated Expiration
2044-08-23

AI Technical Summary

Technical Problem

The balance spring mechanism of the mechanical watch is due to the friction problems between the gem bearing and the swing shaft and the large space occupied by the pendulum structure, which leads to deviation or damage under the action of external forces, affecting the accuracy and aesthetics of the mechanical watch.

Method used

The pendulum ply is made of sapphire ply and the "T"-shaped structure, combined with the shock absorber and the inertia adjustment component, and the positioning and shock absorption of the pendulum axis is achieved through the shock absorber, reducing space occupation, and adjusting the inertia of the balance wheel through the inertia adjustment component. Improve the earthquake resistance and aesthetics of mechanical watches.

Benefits of technology

It realizes precise positioning and shock absorption of the pendulum axis, reduces space occupation, improves the earthquake resistance and aesthetics of the mechanical watch, and facilitates observation and maintenance.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention discloses a balance wheel assembly mechanism, which relates to the technical field of mechanical watch accessories, including a main plate, a sapphire plate, a swing plate, a shock absorber, a swing shaft and a balance wheel, wherein the sapphire plate is mounted on the lower surface of the main plate, the swing plate is fixedly mounted on the upper surface of the main plate, and the swing plate includes a support portion and a mounting portion, and the support portion and the mounting portion form a "T"-shaped structure. The present invention arranges a sapphire plate and a swing plate of a "T"-shaped structure, and the sapphire plate and the swing plate can realize the positioning of the swing shaft through the shock absorber. The sapphire plate is light-transmissive and can be engraved, which can improve the aesthetics of the mechanical watch, and the swing plate of the "T"-shaped structure reduces the space occupied while realizing the support and positioning of the swing shaft, and has a small shielding range for the balance wheel, which is convenient for observing the rotation of the balance wheel during use or maintenance, so as to achieve the effect of improving the aesthetics and practicality of the mechanical watch.
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Description

Technical Field

[0001] The invention relates to the technical field of mechanical watch accessories, and in particular to a balance wheel assembly mechanism. Background Art

[0002] At present, for general mechanical watches, the balance spring mechanism generally adopts a jewel bearing and a balance shaft configuration. However, due to the large friction coefficient between the jewel bearing and the balance shaft, once the mechanical watch is subjected to a large external force, the matching structure of the jewel bearing and the balance shaft is difficult to resist or withstand the force, resulting in deviation between the components, thereby causing the internal structure of the mechanical watch to deviate or be damaged.

[0003] For example, a balance spring mechanism for a mechanical watch with publication number CN103293937B includes a balance plate, a balance shaft, a balance wheel, an inner pile double disc and a hairspring, wherein the balance plate is arranged on the main plate of the mechanical watch; the balance shaft is rotatably arranged on the balance plate by being provided with a micro bearing; the balance wheel is arranged at the first end of the balance shaft; the inner pile double disc is a combination of an inner pile and double discs, and is connected to the second end of the balance shaft; the hairspring is sleeved on the inner pile double disc, and one end of the hairspring is connected to the inner pile double disc, and the other end is connected to the balance plate. By replacing the jewel bearing commonly used in the prior art with a micro bearing, a balance shaft with a larger diameter can be installed in a certain installation space due to the miniaturized size of the micro bearing, and the balance shaft and the micro bearing have a lower friction coefficient, so that when the balance spring mechanism is subjected to a large external force, it can withstand it, ensuring that the balance spring mechanism is not easily damaged, thereby eliminating the need to equip a shock absorber.

[0004] The above technical solution has some problems in practical application. Although this technical solution solves the problem of friction between the balance shaft and the bearing, when the mechanical watch vibrates due to falling, collision, etc., the balance shaft, balance wheel and other mechanisms will be offset due to the vibration, affecting the accuracy of the mechanical watch. In addition, the balance splint in the prior art is mostly a fan-shaped structure, which occupies a large space and is not conducive to installation.

[0005] Therefore, it is necessary to invent a balance wheel assembly mechanism to solve the above problems. Summary of the invention

[0006] The object of the present invention is to provide a balance wheel assembly mechanism to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solutions: a balance wheel assembly mechanism, comprising a main plate, a sapphire plate, a balance plate, a shock absorber, a balance shaft and a balance wheel;

[0008] The sapphire splint is mounted on the lower surface of the main splint, the sapphire splint is arranged in an annular structure, a fork splint is fixedly mounted on the upper surface of the sapphire splint by bolts, and the fork splint is fixedly mounted on the lower surface of the main splint by bolts, and a fastening ring is inserted and mounted in the middle of the lower surface of the sapphire splint;

[0009] The swing clamp is fixedly mounted on the upper surface of the main clamp, and the swing clamp includes a support portion and a mounting portion, the support portion and the mounting portion are vertically arranged, and the support portion and the mounting portion form a "T"-shaped structure, both ends of the mounting portion are fixedly mounted with mounting rings, and the mounting rings are fixedly mounted on the upper surface of the main clamp by bolts, and one end of the support portion is fixedly mounted with a shock absorber mounting seat;

[0010] Two shock absorbers are provided, and the two shock absorbers are respectively fixedly mounted on the middle part of the lower surface of the sapphire splint and inside the shock absorber mounting seat, the balance shaft is mounted between the two shock absorbers, the balance wheel is mounted on the middle part of the balance shaft, a hairspring is mounted below the balance wheel, a hairspring adjustment component is mounted below the hairspring, and a plurality of inertia adjustment components are mounted around the outer wall of the balance wheel.

[0011] Preferably, the shock absorber includes an annular base, a force-bearing seat, a first elastic block and a second elastic block, the inner side wall of the annular base is arranged as an inverted cone structure, the force-bearing seat, the first elastic block and the second elastic block are sequentially installed inside the annular base from bottom to top, the middle part of the force-bearing seat is arranged as an upward arc-shaped protruding structure, the first elastic block and the second elastic block are both arranged as a "∩"-shaped structure, the middle parts of both sides of the first elastic block are arranged with a first deformation part of an arc-shaped structure, the middle parts of both sides of the second elastic block are arranged with a second deformation part of a wave-shaped structure, and the second deformation part corresponds to the first deformation part, and an installation component is installed between the first annular base, the first elastic block and the second elastic block.

[0012] Preferably, the mounting assembly includes a positioning slot, a positioning card slot, a positioning card block and a positioning plug plate, the positioning slot and the positioning card slot are respectively opened at both ends of the upper surface of the annular base, and the positioning slot is arranged as a "⊥"-shaped structure, the positioning card block is fixedly installed at the middle of the first elastic block and the second elastic block, and the positioning card block corresponds to the positioning card slot, the positioning plug plate is fixedly installed at both ends of the first elastic block and the second elastic block, and the positioning plug plate corresponds to the positioning slot.

[0013] Preferably, the inertia adjustment assembly includes a mounting groove, a connecting column, a counterweight frame, an adjustment column and an adjustment seat, the mounting groove is opened on the outer side wall of the balance wheel, the connecting column is threadedly installed in the middle of the bottom of the mounting groove, the counterweight frame is fixedly installed on one end of the connecting column, the adjustment column is fixedly installed inside the counterweight frame, the adjustment seat is slidably installed in the middle of the adjustment column, and a limiting assembly is installed between the adjustment seat and the adjustment column.

[0014] Preferably, the limiting assembly includes a limiting ring, a limiting slide rail, a limiting slide groove and a limiting bolt, the limiting ring is fixedly installed at both ends of the adjusting column, the limiting slide rail is installed around the outer wall of the adjusting column, the limiting slide groove is opened around the inner wall of the adjusting seat, and the limiting slide groove corresponds to the limiting slide rail, the limiting bolt is threadedly installed in the middle part of the outer wall of the adjusting seat, and one end of the limiting bolt is in contact with the outer wall of the adjusting column.

[0015] Preferably, the hairspring adjustment assembly includes a double disc support, a hairspring post and a speed post, the double disc support is fixedly installed in the middle of the hairspring, and the double disc support is sleeved and installed in the middle of the balance shaft, the hairspring post is installed at one end of the hairspring, and the bottom end of the hairspring post is fixedly installed with a hairspring post fixing seat, and the hairspring post fixing seat is fit-mounted on the upper surface of the main plate, the speed post is installed below the hairspring, and a positioning assembly is fixedly installed at one end of the speed post.

[0016] Preferably, the positioning assembly includes a clamping sleeve, a sleeve washer and a sleeve bushing, the clamping sleeve is installed above the fast and slow piles, and the clamping sleeve is sleeve-mounted in the middle of the balance shaft, the sleeve washer is installed between the clamping sleeve and the hairspring pile fixing seat, the sleeve bushing is sleeve-mounted at the bottom end of the clamping sleeve, and the sleeve bushing is installed on the lower surface of the main plate.

[0017] Preferably, a clamp seat is fixedly mounted on one end of the upper surface of the fast and slow pile, and the clamp seat is plugged and mounted on one end of the hairspring.

[0018] Preferably, the reset assembly comprises a fixed ring (7311), a movable ring (7312), a connecting ring (7313) and an elastic connecting plate (7314), wherein the fixed ring (7311) is fixedly mounted on the inner middle portion of the compression sleeve (731), two movable rings (7312) and two connecting rings (7313) are provided, and the two movable rings (7312) and the connecting ring (7313) are respectively mounted on both sides of the fixed ring (7311), and the elastic connecting plate (7314) is fixedly mounted on the inner middle portion of the compression sleeve (731), and two movable rings (7312) and two connecting rings (7313) are provided. 314) is configured as a conical structure, and the elastic connecting plate (7314) is fixedly installed between the movable ring (7312) and the connecting ring (7313), a plurality of deformation grooves of fan-shaped structure are penetrated through the middle of the elastic connecting plate (7314), a first return spring (7315) is installed between the movable ring (7312) and the fixed ring (7311), and a second return spring (7316) is installed between the movable ring (7312) and one end of the clamping sleeve (731).

[0019] Preferably, the annular base is in interference connection with the fastening ring and the shock absorber mounting seat.

[0020] Technical effects and advantages of the present invention:

[0021] 1. The present invention provides a sapphire splint and a "T"-shaped pendulum splint. The sapphire splint and the pendulum splint can realize the positioning of the pendulum shaft through the shock absorber. The sapphire splint is light-transmissive and can be engraved, which can improve the aesthetics of the mechanical watch. The "T"-shaped pendulum splint can realize the support and positioning of the pendulum shaft while reducing the space occupation. The shielding range of the balance wheel is small, which is convenient for observing the rotation of the balance wheel during use or maintenance, so as to achieve the effect of improving the aesthetics and practicality of the mechanical watch.

[0022] 2. The present invention provides a shock absorber, which can realize the clamping and positioning of both ends of the swing shaft. The shock absorber is composed of an annular base, a force-bearing seat, a first elastic block and a second elastic block. The annular base cooperates with the force-bearing seat to realize the positioning of the swing shaft. The first elastic block cooperates with the second elastic block and can squeeze the force-bearing seat through its own elastic potential energy to achieve the positioning effect of the swing shaft. When the mechanical watch vibrates due to external factors such as collision and falling, the first elastic block and the second elastic block can achieve deformation and energy absorption through the first deformation parts and the second deformation parts staggered on both sides thereof to achieve the shock-absorbing effect of the swing shaft, thereby ensuring the accuracy of the mechanical watch during use.

[0023] 3. The present invention arranges an inertia adjustment component on the outside of the balance wheel, and the inertia adjustment component includes a counterweight frame and an adjustment seat installed inside the counterweight frame. The counterweight frame can increase the inertia of the balance wheel during the swing process. By adjusting the position of the adjustment seat from the center of the balance wheel, the inertia of the balance wheel can be adjusted, so as to facilitate the debugging and maintenance of the mechanical watch.

[0024] 4. The present invention arranges a clamping sleeve below the hairspring, and a reset assembly is arranged inside the clamping sleeve. The reset assembly consists of a clamping sleeve, a movable ring, a connecting ring and an elastic connecting plate. When the balance shaft vibrates due to external factors and the vibration amplitude exceeds the buffering range of the shock absorber, the balance shaft squeezes the connecting ring, causing the connecting ring, the elastic connecting plate and the movable ring to deform and deviate. At this time, the movable ring is reset under the action of the first reset spring and the second reset spring, and the elastic connecting plate is deformed to absorb energy. The movable ring drives the connecting ring to move during the reset process, so that the connecting ring pushes the balance shaft to reset, thereby improving the seismic resistance of the balance wheel mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0026] Figure 2 It is an exploded view of the structure above the main splint of the present invention.

[0027] Figure 3 It is an exploded view of the structure below the main plate of the present invention.

[0028] Figure 4 It is a schematic cross-sectional view of the overall structure of the present invention.

[0029] Figure 5 It is a schematic diagram of the shock absorber structure of the present invention.

[0030] Figure 6 It is an exploded view of the shock absorber structure of the present invention.

[0031] Figure 7 It is a schematic diagram of the hairspring structure of the present invention.

[0032] Figure 8 It is a schematic diagram of the swing clamp structure of the present invention.

[0033] Fig. 9 It is a schematic diagram of the balance wheel structure of the present invention.

[0034] Fig.10 It is a schematic diagram of the structure of the inertia adjustment component of the present invention.

[0035] Fig.11 It is a schematic diagram of the structure of the limiting component of the present invention.

[0036] Fig.12 It is a schematic cross-sectional view of the limit assembly structure of the present invention.

[0037] In the figure: 1, main plate; 2, sapphire plate; 3, swing plate; 4, shock absorber; 5, swing shaft; 6, balance wheel; 7, hairspring; 21, fork plate; 22, fastening ring; 31, support part; 32, mounting part; 33, mounting ring; 34, shock absorber mounting seat; 41, annular base; 411, positioning slot; 412, positioning card slot; 413, positioning card block; 414, positioning plug plate; 42, force bearing seat; 43, first elastic block; 431, first deformation part; 44, second elastic block; 441, second deformation part; 61, mounting slot; 62, Connecting column; 63, counterweight frame; 64, adjusting column; 641, limiting ring; 642, limiting slide rail; 65, adjusting seat; 651, limiting slide groove; 652, limiting bolt; 71, double disc support; 72, hairspring pile; 73, fast and slow pile; 731, clamping sleeve; 7311, fixing ring; 7312, movable ring; 7313, connecting ring; 7314, elastic connecting plate; 7315, first return spring; 7316, second return spring; 732, sleeve gasket; 733, sleeve bushing; 734, clamp seat; 74, hairspring pile fixing seat. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] The present invention provides Figures 1 to 12 A balance wheel assembly mechanism shown includes a main plate 1, a sapphire plate 2, a balance plate 3, a shock absorber 4, a balance shaft 5 and a balance wheel 6;

[0040] The sapphire splint 2 is mounted on the lower surface of the main splint 1. The sapphire splint 2 is set to a ring structure. The upper surface of the sapphire splint 2 is fixedly mounted with a fork splint 21 by bolts, and the fork splint 21 is fixedly mounted on the lower surface of the main splint 1 by bolts. A fastening ring 22 is inserted and installed in the middle of the lower surface of the sapphire splint 2.

[0041] The swing plate 3 is fixedly mounted on the upper surface of the main plate 1. The swing plate 3 includes a support portion 31 and a mounting portion 32. The support portion 31 and the mounting portion 32 are vertically arranged, and the support portion 31 and the mounting portion 32 form a "T"-shaped structure. The "T"-shaped structure design reduces the shielding range of the balance wheel 6 while ensuring the positioning and supporting effect of the swing shaft 5, and also reduces the space occupation, which facilitates the assembly of the structure. Both ends of the mounting portion 32 are fixedly mounted with mounting rings 33, and the mounting rings 33 are fixedly mounted on the upper surface of the main plate 1 by bolts. One end of the support portion 31 is fixedly mounted with a shock absorber mounting seat 34;

[0042] Two shock absorbers 4 are provided, and the two shock absorbers 4 are respectively fixedly mounted on the middle of the lower surface of the sapphire splint 2 and inside the shock absorber mounting seat 34, the balance shaft 5 is mounted between the two shock absorbers 4, the balance wheel 6 is mounted on the middle of the balance shaft 5, a hairspring 7 is mounted below the balance wheel 6, a hairspring adjustment component is mounted below the hairspring 7, and a plurality of inertia adjustment components are mounted around the outer wall of the balance wheel 6;

[0043] The shock absorber 4 includes an annular base 41, a force bearing seat 42, a first elastic block 43 and a second elastic block 44. The annular base 41 is in interference connection with the fastening ring 22 and the shock absorber mounting seat 34. The inner side wall of the annular base 41 is set to an inverted cone structure.

[0044] Furthermore, the force-bearing seat 42, the first elastic block 43 and the second elastic block 44 are sequentially installed inside the annular base 41 from bottom to top, the middle part of the force-bearing seat 42 is arranged as an upward arc-shaped convex structure, and the arc-shaped convex structure is more conducive to the middle part of the force-bearing seat 42 to position the swing shaft 5, the first elastic block 43 and the second elastic block 44 are both arranged as a "∩"-shaped structure, the middle parts of both sides of the first elastic block 43 are arranged with first deformation parts 431 of an arc structure, the middle parts of both sides of the second elastic block 44 are arranged with second deformation parts 441 of a wave structure, and the second deformation parts 441 correspond to the first deformation parts 431, and an installation component is installed between the first annular base 41, the first elastic block 43 and the second elastic block 44;

[0045] The mounting assembly includes a positioning slot 411, a positioning card slot 412, a positioning card block 413 and a positioning plug plate 414. The positioning slot 411 and the positioning card slot 412 are respectively provided at both ends of the upper surface of the annular base 41, and the positioning slot 411 is set to a "⊥"-shaped structure. The positioning card block 413 is fixedly installed in the middle of the first elastic block 43 and the second elastic block 44, and the positioning card block 413 corresponds to the positioning card slot 412. The positioning plug plate 414 is fixedly installed at both ends of the first elastic block 43 and the second elastic block 44, and the positioning plug plate 414 corresponds to the positioning slot 411.

[0046] When assembling the shock absorber 4, the force bearing seat 42 can be inserted into the conical structure inside the annular base 41, and the positioning block 413 at one end of the first elastic block 43 and the second elastic block 44 can be inserted into the positioning slot 412 from the side, and then the two adjacent positioning plug plates 414 are squeezed to make the positioning plug plates 414 deform inwardly until the positioning plug plates 414 can be inserted into the positioning slot 411, and then the positioning plug plates 414 recover their deformation under the action of their own elastic potential energy and are completely inserted into the positioning slot 411, and the assembly of the shock absorber 4 is completed. The internal assembly of the shock absorber 4 is completed only by the elasticity of the material itself, which saves the assembly process and reduces the structural failure rate;

[0047] The inertia adjustment component includes a mounting groove 61, a connecting column 62, a counterweight frame 63, an adjustment column 64 and an adjustment seat 65. The mounting groove 61 is opened on the outer wall of the balance wheel 6. The connecting column 62 is threadedly installed in the middle of the groove bottom of the mounting groove 61. The counterweight frame 63 is fixedly installed on one end of the connecting column 62. The adjustment column 64 is fixedly installed inside the counterweight frame 63. The adjustment seat 65 is slidably installed in the middle of the adjustment column 64. A limit position component is installed between the adjustment seat 65 and the adjustment column 64. By adjusting the distance between the adjustment seat 65 and the center of the balance wheel 6, the weight distribution of the balance wheel 6 can be adjusted to achieve the effect of adjusting the inertia of the balance wheel 6 when it swings.

[0048] The limiting assembly includes a limiting ring 641, a limiting slide rail 642, a limiting slide groove 651 and a limiting bolt 652. The limiting ring 641 is fixedly installed at both ends of the adjusting column 64. The limiting slide rail 642 is installed around the outer wall of the adjusting column 64. The limiting slide groove 651 is opened around the inner wall of the adjusting seat 65, and the limiting slide groove 651 corresponds to the limiting slide rail 642. The limiting bolt 652 is threadedly installed in the middle of the outer wall of the adjusting seat 65, and one end of the limiting bolt 652 is in contact with the outer wall of the adjusting column 64. The limiting bolt 652 can fix the position between the adjusting seat 65 and the adjusting column 64.

[0049] The hairspring adjustment assembly includes a double disc support 71, a hairspring pile 72 and a speed pile 73. The double disc support 71 is fixedly installed in the middle of the hairspring 7, and the double disc support 71 is sleeved and installed in the middle of the balance shaft 5. The double disc support 71 can achieve the effect of fixing the position of the middle of the hairspring 7 and the balance shaft 5, so that the hairspring 7 can drive the balance wheel 6 to rotate. The hairspring pile 72 is installed at one end of the hairspring 7, and the bottom end of the hairspring pile 72 is fixedly installed with a hairspring pile fixing seat 74, and the hairspring pile fixing seat 74 is fitted on the upper surface of the main splint 1. The hairspring pile fixing seat 74 cooperates with the hairspring pile 72 to fix the position of one end of the hairspring 7. The speed pile 73 is installed below the hairspring 7, and one end of the speed pile 73 is fixedly installed with a positioning assembly.

[0050] The positioning assembly includes a clamping sleeve 731, a sleeve washer 732 and a sleeve bushing 733. The clamping sleeve 731 is installed above the speed pile 73, and the clamping sleeve 731 is sleeved and installed in the middle of the balance shaft 5. The sleeve washer 732 is installed between the clamping sleeve 731 and the hairspring pile fixing seat 74. The sleeve bushing 733 is sleeved and installed at the bottom end of the clamping sleeve 731, and the sleeve bushing 733 is installed on the lower surface of the main splint 1. The sleeve bushing 733 cooperates with the clamping sleeve 731 to fix the speed pile 73 and the hairspring pile fixing seat 74. The setting of the sleeve washer 732 allows one end of the speed pile 73 to be locked in position under the action of friction, thereby achieving the effect of fixing the end position of the hairspring 7.

[0051] In addition, a reset component is provided inside the compression sleeve 731, and the reset component includes a fixed ring 7311, a movable ring 7312, a connecting ring 7313 and an elastic connecting plate 7314. The fixed ring 7311 is fixedly installed at the middle part of the inner side of the compression sleeve 731. Two movable rings 7312 and two connecting rings 7313 are provided, and the two movable rings 7312 and the connecting ring 7313 are respectively installed at both sides of the fixed ring 7311. The elastic connecting plate 7314 is provided with a conical structure, and the elastic connecting plate 7314 is fixedly installed between the movable ring 7312 and the connecting ring 7313. A plurality of deformation grooves of fan-shaped structure are provided in the middle part of the elastic connecting plate 7314. The provision of the deformation groove enables the elastic connecting plate 7314 to be elastically deformed when being squeezed, so as to achieve the effect of absorbing energy and resetting the connecting ring 7313.

[0052] Moreover, a first return spring 7315 is installed between the movable ring 7312 and the fixed ring 7311, and a second return spring 7316 is installed between the movable ring 7312 and one end of the compression sleeve 731. The first return spring 7315 and the second return spring 7316 can return the connecting ring 7312 to its original position after it deviates.

[0053] At the same time, a clamp seat 734 is fixedly installed on one end of the upper surface of the fast or slow post 73, and the clamp seat 734 is plugged and installed on one end of the hairspring 7. The clamp seat 734 can realize the connection between the fast or slow post 73 and the hairspring 7. By rotating the fast or slow post 73, the end position of the hairspring 7 can be adjusted, thereby achieving the effect of adjusting the tension of the hairspring 7, and further achieving the effect of adjusting the rotation speed of the balance wheel 6.

[0054] In summary, the technical solution is to install a sapphire splint 2 and a swing splint 3 at both ends of the main splint 1 respectively, and the sapphire splint 2 and the swing splint 3 fix the swing shaft 5 through the shock absorber 4. The balance wheel 6 and the hairspring 7 are installed in the middle of the swing shaft 5. The sapphire material of the sapphire splint 2 is not only light-transmissive, but also can be laser-engraved to provide the aesthetics of the structure. The swing splint 3 is composed of a supporting portion 31 and a mounting portion 32. The "T"-shaped structural design of the swing splint 3 reduces the shielding range of the balance wheel 6 while ensuring the positioning and supporting effect of the swing shaft 5, and also reduces the space occupation, which facilitates the assembly of the structure.

[0055] The two shock absorbers 4 can realize the positioning and shock absorption of the two ends of the swing shaft 5. When the swing shaft 5 vibrates due to external factors, the swing shaft 5 directly acts on the force-bearing seat 42, so that the force-bearing seat 42 moves inside the annular base 41, and the force-bearing seat 42 can squeeze the first elastic block 43 and the second elastic block 44, so that the first elastic block 43 and the second elastic block 44 are deformed. In this process, the first deformation part 431 and the second deformation part 441 on the first elastic block 43 and the second elastic block 44 are synchronously deformed to achieve the effect of energy absorption and shock absorption, thereby achieving the effect of protecting the swing shaft 5;

[0056] When the vibration amplitude of the swing shaft 5 caused by the influence of external factors exceeds the shock absorption range of the shock absorber 4, the swing shaft 5 deviates. At this time, the swing shaft 5 squeezes the connecting ring 7313, and the connecting ring 7313 drives the movable ring 7312 to move through the elastic connecting plate 7314, so that the movable ring 7312 deviates inside the compression sleeve 731. In this process, the movable ring 7312 compresses the first return spring 7315 and the second return spring 7316. When the movable ring 7312 moves and fits the inner wall of the compression sleeve 731, the connecting ring 7313 squeezes the elastic connecting plate 7314, so that the elastic connecting plate 7314 is deformed. When the external factors on the swing shaft 5 disappear, the first return spring 7315 and the second return spring 7316 drive the movable ring 7312 to reset, and the movable ring 7312 drives the swing shaft 5 to reset through the connecting ring 7313, so as to facilitate the subsequent use of the balance wheel mechanism.

[0057] During the installation and debugging of the structure, the inertia of the balance wheel 6 during rotation can be adjusted through the inertia adjustment component, and the limit between the adjustment seat 65 and the adjustment column 64 can be released by rotating the limit bolt 652, and then the position of the adjustment seat 65 on the adjustment column 64 can be adjusted to achieve the effect of adjusting the distance between the adjustment seat 65 and the center of the balance wheel 6. Since the inertia of the balance wheel 6 during rotation is directly affected by its edge weight, the effect of adjusting the rotational inertia of the balance wheel 6 can be achieved by adjusting the position of the adjustment seat 65, so as to facilitate the debugging of the structure during installation.

[0058] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A balance wheel assembly mechanism, characterized in that: It comprises a main plate (1), a sapphire plate (2), a balance plate (3), a shock absorber (4), a balance shaft (5) and a balance wheel (6); The sapphire splint (2) is mounted on the lower surface of the main splint (1), the sapphire splint (2) is arranged in an annular structure, a fork splint (21) is fixedly mounted on the upper surface of the sapphire splint (2) by means of bolts, and the fork splint (21) is fixedly mounted on the lower surface of the main splint (1) by means of bolts, and a fastening ring (22) is inserted and mounted in the middle of the lower surface of the sapphire splint (2); The swing clamp (3) is fixedly mounted on the upper surface of the main clamp (1), and the swing clamp (3) comprises a support portion (31) and a mounting portion (32), wherein the support portion (31) and the mounting portion (32) are arranged vertically, and the support portion (31) and the mounting portion (32) form a "T"-shaped structure, and mounting rings (33) are fixedly mounted on both ends of the mounting portion (32), and the mounting rings (33) are fixedly mounted on the upper surface of the main clamp (1) by bolts, and a shock absorber mounting seat (34) is fixedly mounted on one end of the support portion (31); Two shock absorbers (4) are provided, and the two shock absorbers (4) are respectively fixedly mounted on the middle part of the lower surface of the sapphire splint (2) and inside the shock absorber mounting seat (34); the balance shaft (5) is mounted between the two shock absorbers (4); the balance wheel (6) is mounted on the middle part of the balance shaft (5); a hairspring (7) is mounted below the balance wheel (6); a hairspring adjustment component is mounted below the hairspring (7); and a plurality of inertia adjustment components are mounted around the outer wall of the balance wheel (6); The shock absorber (4) comprises an annular base (41), a force-bearing seat (42), a first elastic block (43) and a second elastic block (44); the force-bearing seat (42), the first elastic block (43) and the second elastic block (44) are sequentially mounted inside the annular base (41) from bottom to top; the middle portion of the force-bearing seat (42) is arranged as an upward arc-shaped protruding structure; the first elastic block (43) and the second elastic block (44) are both arranged as "∩"-shaped structures; the middle portions of both sides of the first elastic block (43) are arranged with first deformation portions (431) of an arc-shaped structure; the middle portions of both sides of the second elastic block (44) are arranged with second deformation portions (441) of a wave-shaped structure; and the second deformation portions (441) correspond to the first deformation portions (431); the annular base (41), the first elastic block (43) and the second elastic block (44) are arranged with a first deformation portion (441) of a wave-shaped structure. An installation component is installed between an elastic block (43) and a second elastic block (44), the installation component comprising a positioning slot (411), a positioning slot (412), a positioning block (413) and a positioning plug plate (414); the positioning slot (411) and the positioning slot (412) are respectively arranged at two ends of the upper surface of the annular base (41), and the positioning slot (411) is arranged in a "⊥"-shaped structure; the positioning block (413) is fixedly installed at the middle of the first elastic block (43) and the second elastic block (44), and the positioning block (413) corresponds to the positioning slot (412); the positioning plug plate (414) is fixedly installed at two ends of the first elastic block (43) and the second elastic block (44), and the positioning plug plate (414) corresponds to the positioning slot (411); The hairspring adjustment assembly comprises a double disc support (71), a hairspring pile (72) and a speed pile (73), wherein the double disc support (71) is fixedly mounted on the middle part of the hairspring (7), and the double disc support (71) is sleeved and mounted on the middle part of the balance shaft (5), the hairspring pile (72) is mounted on one end of the hairspring (7), and a hairspring pile fixing seat (74) is fixedly mounted on the bottom end of the hairspring pile (72), and the hairspring pile fixing seat (74) is fitted on the upper surface of the main splint (1), and the speed pile (73) is mounted below the hairspring (7), and the speed pile (73) A positioning assembly is fixedly installed at one end of the spring, the positioning assembly comprising a clamping sleeve (731), a sleeve washer (732) and a sleeve bushing (733), the clamping sleeve (731) is installed above the fast and slow pile (73), and the clamping sleeve (731) is sleeve-mounted in the middle of the balance shaft (5), the sleeve washer (732) is installed between the clamping sleeve (731) and the hairspring pile fixing seat (74), the sleeve bushing (733) is sleeve-mounted at the bottom end of the clamping sleeve (731), and the sleeve bushing (733) is installed on the lower surface of the main splint (1).

2. A balance wheel assembly mechanism according to claim 1, characterized in that: The inertia adjustment component comprises a mounting groove (61), a connecting column (62), a counterweight frame (63), an adjustment column (64) and an adjustment seat (65); the mounting groove (61) is formed on an outer wall of the balance wheel (6); the connecting column (62) is threadedly mounted on the middle part of the bottom of the mounting groove (61); the counterweight frame (63) is fixedly mounted on one end of the connecting column (62); the adjustment column (64) is fixedly mounted inside the counterweight frame (63); the adjustment seat (65) is slidably mounted on the middle part of the adjustment column (64); and a limit position component is mounted between the adjustment seat (65) and the adjustment column (64).

3. A balance wheel assembly mechanism according to claim 2, characterized in that: The limiting assembly comprises a limiting ring (641), a limiting slide rail (642), a limiting slide groove (651) and a limiting bolt (652); the limiting ring (641) is fixedly mounted on both ends of the adjusting column (64); the limiting slide rail (642) is mounted around the outer wall of the adjusting column (64); the limiting slide groove (651) is mounted around the inner wall of the adjusting seat (65); the limiting slide groove (651) corresponds to the limiting slide rail (642); the limiting bolt (652) is threadedly mounted on the middle part of the outer wall of the adjusting seat (65); and one end of the limiting bolt (652) is in contact with the outer wall of the adjusting column (64).

4. A balance wheel assembly mechanism according to claim 1, characterized in that: A clamp seat (734) is fixedly mounted on one end of the upper surface of the fast and slow pile (73), and the clamp seat (734) is plugged and mounted on one end of the hairspring (7).

5. A balance wheel assembly mechanism according to claim 1, characterized in that: The annular base (41) is in interference connection with the main plate (1) and the shock absorber mounting seat (34).

6. A balance wheel assembly mechanism according to claim 1, characterized in that: The inner side wall of the annular base (41) is configured as an inverted cone structure.

Citation Information

Patent Citations

  • Balance spring mechanism for mechanical watch and mechanical watch with the mechanism

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  • Watch coaxial type rotating escapement speed-adjusting mechanism

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  • Mechanical watch balance wheel hairspring system

    CN209373352U