Rotary cutting disc and moving head lamp with same

By adopting the transmission structure of large gears and pinions in the shaker lamp, the problems of large noise and large space occupation caused by the transmission structure of the synchronous belt are solved, and a more stable and compact rotary cutting disk design is achieved, extending the service life of the equipment.

CN222578044UActive Publication Date: 2025-03-07GUANGZHOU COSTA STAGE LIGHTING EQUIP CO LTD
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Patent Information

Application Number
CN202420739562.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-04-10
Publication Date
2025-03-07
Estimated Expiration
2034-04-10

AI Technical Summary

Technical Problem

In the existing movable head lamps, the synchronous belt transmission structure causes high friction noise, easy wear, large space, and is not conducive to the development of small size during rotation.

Method used

A rotary cutting disc is designed, adopting a transmission structure of large gears and pinions. The spot cutter mounting plate is fixedly connected to the rotating inner ring of the bearing assembly. By driving the pinion to rotate, the stable rotation of the spot cutter mounting plate is achieved.

Benefits of technology

It effectively reduces the noise of the spot cutter mounting plate during rotation, reduces the space occupied by the cutting system, simplifies the structure, is easy to install, helps to reduce the volume of the shaking headlight and extends the service life.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a rotary cutting disc and a moving head lamp with the same. The rotary cutting disc comprises a fixed base plate, a bearing assembly, a power assembly, a light spot cutter and a light spot cutter mounting plate, the bearing assembly is fixedly connected with the fixed base plate and arranged below the center area of the fixed base plate. The power assembly comprises a driving motor, a large gear and a small gear. The output end of the driving motor is connected with the pinion; the pinion is arranged on the light plate cutter mounting plate and is positioned below the driving motor; the large gear is fixedly connected with a bearing seat of the bearing assembly and is in meshed connection with the small gear; the light spot cutter mounting plate is arranged below the large gear and fixedly connected with the rotating inner ring of the bearing assembly. According to the scheme, operation can be stable, noise generated in the rotating process of the light spot cutter mounting plate is effectively reduced, the space occupied by the whole cutting system is reduced, the structure is further simplified, and the service life is prolonged.
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Description

Technical Field

[0001] The utility model relates to the technical field of lighting, in particular to a rotary cutting disc and a moving head lamp with the same. Background Art

[0002] Moving head lights are usually high-tech products that integrate electronics, mechanics, and optics and are used on stages or squares. They are a means of stage art modeling. They use light color and its changes to display the environment, render the atmosphere, highlight the central characters, create a sense of stage space and time, shape the external image of the stage performance, and provide necessary lighting effects (such as wind, rain, clouds, water, and lightning).

[0003] In order to obtain better stage effects, it is usually necessary to cut the light spot. The light cutter cuts the light passing through the light hole to obtain light spots of different shapes and sizes. In order to further achieve the dynamic effect of the light spot, the prior art generally adopts a synchronous belt transmission structure to rotate the light spot cutter mounting plate. However, under the tension of the tension wheel, the synchronous belt of the existing structure pulls the cutting turntable toward the rotating motor side. During the rotation of the cutting turntable, due to the tension of the synchronous belt, the friction between the side rolling wheel located around the light spot cutter mounting plate and the cutting turntable will increase, which will produce a large friction noise. At the same time, the use of synchronous belts is not only easy to wear and damage, but also inconvenient to replace; the installation is cumbersome and occupies a large space, which increases the space occupied by the entire cutting system, which is not conducive to the development of moving head lights in the direction of small size.

[0004] Therefore, there is an urgent need to design a rotating cutting disk and a moving head light having the same, which can run smoothly, effectively reduce the noise generated by the light spot cutter mounting plate during the rotation process, reduce the space occupied by the entire cutting system, further simplify the structure, and facilitate installation, which is conducive to further reducing the volume of the moving head light and effectively extending the service life of the rotating cutting disk and the moving head light. Utility Model Content

[0005] In order to overcome the problems existing in the related technology, the present application provides a rotating cutting disk and a moving head light having the same. The rotating cutting disk and the moving head light having the same can run smoothly, effectively reduce the noise generated by the light spot cutter mounting plate during the rotation process, and reduce the space occupied by the entire cutting system, further simplify the structure, and are easy to install, which is conducive to further reducing the volume of the moving head light, and effectively prolonging the service life of the rotating cutting disk and the moving head light.

[0006] One of the purposes of the present application is to provide a rotating cutting disk, comprising a fixed base plate, a bearing assembly, a power assembly, a spot cutter and a spot cutter mounting plate; the bearing assembly is fixedly connected to the fixed base plate and is arranged below the central area of ​​the fixed base plate; the power assembly comprises a driving motor, a large gear and a small gear; the output end of the driving motor is connected to the small gear for providing power to the small gear; the small gear is arranged on the spot cutter mounting plate and is located below the driving motor; the large gear is fixedly connected to the bearing seat of the bearing assembly and meshed with the small gear; the spot cutter mounting plate is arranged below the large gear and fixedly connected to the rotating inner ring of the bearing assembly; the spot cutter mounting plate can rotate relative to the fixed base plate; the spot cutter is arranged on the spot cutter mounting plate.

[0007] In a preferred technical solution of the present application, a first light-through hole is provided in the central area of ​​the fixed substrate; a second light-through hole is provided in the central area of ​​the spot cutter mounting plate; and the centers of the first light-through hole and the second light-through hole overlap.

[0008] In a preferred technical solution of the present application, the bearing assembly includes a bearing seat, a bearing and a rotating inner ring; the first light hole, the bearing, the bearing seat and the second light hole are arranged in sequence from top to bottom; the bearing is adapted to the first light hole and is fixedly connected to the fixed base plate; the bearing seat is connected to the bearing, and the rotating inner ring is cocentrically arranged in the bearing seat and can rotate relative to the bearing seat.

[0009] In a preferred technical solution of the present application, the overall shape of the light spot cutter mounting plate is circular, and the rotation angle of the light spot cutter mounting plate relative to the fixed substrate is ±45 degrees.

[0010] In a preferred technical solution of the present application, the ratio of the number of teeth of the large gear to the number of teeth of the small gear is 2:1.

[0011] In a preferred technical solution of the present application, the height of the large gear and the small gear is less than or equal to one tenth of the movable distance; wherein the movable distance is the distance between the fixed substrate and the spot cutter mounting plate.

[0012] In the preferred technical solution of the present application, it also includes a spot cutting drive unit and a light cutting piece; the spot cutting drive unit includes a cutting motor, a synchronous wheel and a synchronous belt; the cutting motor and the synchronous wheel are relatively arranged above and below the light spot cutter mounting plate, and the synchronous wheel is sleeved on the output shaft of the cutting motor; one end of the synchronous belt is connected to the synchronous wheel, and the other end is connected to the light cutting piece, thereby driving the light cutting piece to move to the second light through hole.

[0013] The second purpose of the present application is to provide a moving head light, comprising the above-mentioned rotating cutting disk.

[0014] In a preferred technical solution of the present application, it also includes a lamp housing, a light source component, a pattern component and a focusing component; the light source component, the pattern component and the focusing component are arranged in the lamp housing in sequence from bottom to top.

[0015] The technical solution provided by the utility model may have the following beneficial effects:

[0016] (1) The rotary cutting disk provided by the utility model sets the large gear to be fixedly connected with the bearing seat of the bearing assembly, and sets the spot cutter mounting plate to be fixedly connected with the rotating inner ring of the bearing assembly, so that when the small gear rotates under the drive of the driving motor, it can drive the spot cutter mounting plate and multiple components arranged on the spot cutter mounting plate to rotate relative to the large gear, the bearing seat and the fixed base plate. Compared with the prior art that uses a conveyor belt transmission, which is prone to noise or large space occupation due to unbalanced force of the conveyor belt, the rotary cutting disk provided by the utility model can run smoothly, effectively reduce the noise generated by the spot cutter mounting plate during rotation, and reduce the space occupied by the entire cutting system, further simplify the structure, and is easy to install, which is conducive to further reducing the size of the moving head lamp, and effectively prolonging the service life of the rotary cutting disk and the moving head lamp.

[0017] (2) By rotating the spot cutter mounting plate relative to the fixed base plate at an angle of ±45 degrees, the problem of poor spot dynamic effect due to insufficient rotation angle or the situation of power cord being tangled due to excessive rotation angle can be effectively avoided.

[0018] (3) By making the height of the large gear and the small gear less than or equal to one tenth of the movable distance, not only can the demand for stable transmission be met, but also the problem of "due to the large number of transmission components (such as motors, synchronous wheels and conveyor belts) arranged on the light spot cutter mounting plate, resulting in a large weight, in order to extend the service life of the synchronous belt and reduce the trouble of replacement, most of the prior art requires the use of a wider synchronous belt to drive the light spot cutter mounting plate to rotate, which will cause the rotating cutting disk to occupy a larger area" is effectively solved.

[0019] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and other objects, features and advantages of the present application will become more apparent through a more detailed description of exemplary embodiments of the present application in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present application.

[0021] Figure 1 is a schematic structural diagram of a rotating cutting disc shown in an embodiment of the present application;

[0022] Figure 2 is a partially exploded schematic diagram of a rotating cutting disc shown in an embodiment of the present application;

[0023] Figure 3 It is another structural schematic diagram of the rotating cutting disk shown in the embodiment of the present application.

[0024] Reference numerals:

[0025] 1. Fixed substrate; 11. First light hole; 2. Bearing assembly; 21. Bearing seat; 22. Bearing; 3. Power assembly; 31. Drive motor; 32. Large gear; 33. Small gear; 4. Spot cutter mounting plate; 5. Spot cutting drive unit; 51. Cutting motor; 52. Synchronous wheel; 53. Synchronous belt. DETAILED DESCRIPTION

[0026] The preferred embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although the preferred embodiments of the present application are shown in the accompanying drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present application more thorough and complete, and to fully convey the scope of the present application to those skilled in the art.

[0027] The terms used in this application are for the purpose of describing specific embodiments only and are not intended to limit this application. The singular forms of "a", "said" and "the" used in this application and the appended claims are also intended to include plural forms unless the context clearly indicates other meanings. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0028] It should be understood that although the terms "first", "second", "third", etc. may be used in this application to describe various information, this information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of this application, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0029] In the prior art, a synchronous belt transmission structure is generally used to rotate the spot cutter mounting plate. However, during the rotation process, due to the tension of the synchronous belt, the friction between the side rolling wheels and the cutting turntable located around the spot cutter mounting plate will increase, which will produce a large friction noise. At the same time, the use of synchronous belts is not only easy to wear and damage, but also inconvenient to replace; the installation is relatively cumbersome and occupies a large space, which in turn increases the space occupied by the entire cutting system, which is not conducive to the development of moving head lights in the direction of small size.

[0030] In response to the above-mentioned problems, the embodiments of the present application provide a rotating cutting disk and a moving head light having the same, which can run smoothly and effectively reduce the noise generated by the light spot cutter mounting plate during the rotation process, and reduce the space occupied by the entire cutting system, further simplify the structure, and are easy to install, which is conducive to further reducing the volume of the moving head light, and effectively prolonging the service life of the rotating cutting disk and the moving head light.

[0031] The technical solution of the embodiments of the present application is described in detail below with reference to the accompanying drawings.

[0032] Embodiment 1

[0033] See also Figure 1-Figure 3 The rotary cutting disk provided in the first embodiment of the present application includes a fixed substrate 1, a bearing assembly 2, a power assembly 3, a spot cutter and a spot cutter mounting plate 4. The spot cutter mounting plate 4 and the fixed substrate 1 can rotate relative to each other, and the fixed substrate 1, the bearing assembly 2 and the spot cutter mounting plate 4 are arranged in sequence from top to bottom. Specifically, the bearing assembly 2 is fixedly connected to the fixed substrate 1 and is arranged below the central area of ​​the fixed substrate 1. The spot cutter mounting plate 4 is rotatably connected to the fixed substrate 1 through the bearing assembly 2. By arranging the bearing assembly 2 in the central area of ​​the fixed substrate 1, when the spot cutter mounting plate 4 rotates relative to the fixed substrate 1, the entire rotary cutting disk can run more stably.

[0034] More specifically, the power assembly 3 includes a driving motor 31, a large gear 32 and a small gear 33. The driving motor 31 is arranged on the spot cutter mounting plate 4, and the output end of the driving motor 31 is connected to the small gear 33, so as to provide power for the small gear 33. The small gear 33 is arranged on the spot cutter mounting plate 4 and is located below the driving motor 31. The large gear 32 is fixedly connected to the bearing seat of the bearing assembly 2 and meshed with the small gear 33. The spot cutter mounting plate 4 is arranged below the large gear 32 and fixedly connected to the rotating inner ring of the bearing assembly 2. Since the large gear meshed with the small gear is fixedly connected to the bearing seat, the spot cutter mounting plate is fixedly connected to the rotating inner ring of the bearing assembly. When the driving motor 31 is started, the small gear 33 is driven to rotate, and the small gear 33 can drive the spot cutter mounting plate to rotate relative to the large gear, that is, the spot cutter mounting plate 4 can rotate relative to the fixed substrate 1.

[0035] Furthermore, the fixed substrate 1 is rectangular as a whole, the spot cutter mounting plate 4 is circular as a whole, and the long side width of the fixed substrate 1 is consistent with the diameter of the spot cutter mounting plate 4. Under the condition of ensuring the stability of the overall structure, the positive projection area of ​​the fixed substrate 1 on the spot cutter mounting plate 4 is minimized to facilitate the installation of the power component 3 and the spot cutter. A first light-through hole 11 is provided in the central area of ​​the fixed substrate 1; a second light-through hole is provided in the central area of ​​the spot cutter mounting plate 4; the centers of the first light-through hole 11 and the second light-through hole overlap, so that in the moving head light, the light emitted by the light source can pass through the first light-through hole 11, the bearing assembly 2 and the second light-through hole, and a richer lighting effect can be achieved through the subsequent pattern plate, etc. It should be noted that the through hole of the bearing assembly 2 and the gear hole of the large gear 32 are both compatible with the first light-through hole 11, and the centers of the circles overlap.

[0036] In order to realize the rotation of the spot cutter mounting plate 4 relative to the fixed substrate 1, the bearing assembly 2 includes a bearing seat 21, a bearing 22 and a rotating inner ring, the bearing 22 is fixedly connected to the fixed substrate 1, the bearing seat 21 is fixedly connected to the bearing 22, the rotating inner ring is cocentrically arranged in the bearing seat (21) and can rotate relative to the bearing seat (21), and the spot cutter mounting plate is fixedly connected to the rotating inner ring. Specifically, the first light hole 11, the bearing 22, the bearing seat 21 and the second light hole are arranged in sequence from top to bottom. The bearing 22 is adapted to the first light hole 11 and is fixedly connected to the fixed substrate 1. Since the fixed substrate 1 is fixedly connected to the bearing (or bearing seat), the rotating inner ring fixedly connected to the spot cutter mounting plate 4 can rotate relative to the bearing seat, so that the spot cutter mounting plate 4 can rotate relative to the fixed substrate 1.

[0037] In order to make the power assembly 3 run more smoothly and labor-saving, the ratio of the number of teeth of the large gear 32 to the number of teeth of the small gear 33 is 2:1. Exemplarily, the number of teeth of the large gear 32 is 60, and the number of teeth of the small gear 33 is 30. In order to prevent the power cord from being tangled due to the rotation of the spot cutter mounting plate 4 while satisfying the dynamic effect of the spot, the rotation angle of the spot cutter mounting plate 4 relative to the fixed substrate 1 is ±45 degrees, that is, based on the origin, the spot cutter mounting plate 4 can rotate counterclockwise at an angle of 45 degrees and clockwise at an angle of 45 degrees. By setting the rotation angle to 45 degrees, the problem of poor dynamic effect of the spot due to insufficient rotation angle, or the situation where the power cord is tangled due to excessive rotation angle can be effectively avoided.

[0038] In order to reduce the volume of the entire rotating cutting disk, the height of the large gear 32 and the small gear 33 is less than or equal to one tenth of the active distance, wherein the active distance is the distance between the fixed substrate 1 and the spot cutter mounting plate 4. By making the height of the large gear 32 and the small gear 33 less than or equal to one tenth of the active distance, not only can the demand for stable transmission be met, but also the problem of "due to the large number of transmission components (such as motors, synchronous wheels and conveyor belts) arranged on the spot cutter mounting plate, resulting in a large weight, in order to extend the service life of the synchronous belt and reduce the trouble of replacement, most of the prior art needs to use a wider synchronous belt to drive the spot cutter mounting plate to rotate, which will cause the rotating cutting disk to occupy a large area" is effectively solved.

[0039] The spot cutter is arranged on the spot cutter mounting plate. In order to facilitate the cutting of the spot, the spot cutter includes N groups of spot cutting drive units 5 and N groups of light cutting blades, and the N groups of spot cutting drive units 5 and N groups of light cutting blades are distributed along the circumferential direction of the spot cutter mounting plate 4. Any group of the spot cutting drive units 5 includes a cutting motor 51, a synchronous wheel 52 and a synchronous belt 53. Among them, the cutting motor 51 and the synchronous wheel 52 are relatively arranged above and below the spot cutter mounting plate 4, that is, the cutting motor 51 and the driving motor 31 are arranged on the same side of the spot cutter mounting plate 4. The synchronous wheel 52 is sleeved on the output shaft of the cutting motor 51, and one end of the synchronous belt 53 is connected to the synchronous wheel 52, and the other end is connected to the light cutting blade. When the light source needs to be cut, the cutting motor 51 is started, driving the synchronous wheel 52 to rotate, thereby driving the synchronous belt 53 to rotate, and then driving the light cutting piece connected to the synchronous belt to move to the second light hole, thereby achieving the effect of diverse light spots by dynamically covering the area of ​​the second light hole.

[0040] Working principle:

[0041] When the rotating cutting disk is working, the driving motor 31 is started, driving the pinion 33 to rotate, thereby driving the light spot cutter mounting plate 4 to rotate relative to the fixed base plate 1, and through the rotation, the angle of the light plate cutter located on the light spot cutter mounting plate 4 is changed, so that the light spot produces a dynamic effect. At the same time, the cutting motor 51 is started, driving N groups of light cutting blades to move toward the second light hole, thereby forming light spots of different sizes and shapes. Through the movement of the light cutting blades and the synchronous rotation of the light spot cutter mounting plate 4, a variety of dynamic light spots are formed to achieve richer lighting effects.

[0042] In the first embodiment of the present application, the large gear is arranged to be fixedly connected to the bearing seat of the bearing assembly, and the spot cutter mounting plate is arranged to be fixedly connected to the rotating inner ring of the bearing assembly, so that when the small gear rotates under the drive of the driving motor, the spot cutter mounting plate and multiple components arranged on the spot cutter mounting plate can be driven to rotate relative to the large gear, the bearing seat and the fixed base plate. Compared with the prior art that uses a conveyor belt transmission, which is prone to noise or large space occupation due to unbalanced force of the conveyor belt, the rotary cutting disk provided by the utility model can run smoothly, effectively reduce the noise generated by the spot cutter mounting plate during rotation, and reduce the space occupied by the entire cutting system, further simplify the structure, and is easy to install, which is conducive to further reducing the volume of the moving head lamp, and effectively prolongs the service life of the rotary cutting disk and the moving head lamp.

[0043] Embodiment 2

[0044] Corresponding to the above-mentioned rotating cutting disc, the present application also proposes a moving head light, see Figure 1-Figure 3 , specifically:

[0045] Based on the structure of the above-mentioned embodiment 1, the moving head light provided in embodiment 2 of the present application includes a lamp base, a lamp housing, a light source assembly, a pattern assembly, a focusing assembly and the above-mentioned rotating cutting disk. The lamp housing is arranged on the lamp base, and the light source assembly, the rotating cutting disk, the pattern assembly and the focusing assembly are arranged in the lamp housing in sequence from bottom to top. Specifically, the lamp housing forms a accommodating cavity, the light source assembly is arranged in the accommodating cavity at one end close to the lamp base, and the rotating cutting disk is arranged above the light source assembly to cut the light emitted by the light source assembly into dynamic light spots of different shapes and sizes. The pattern assembly is arranged above the rotating cutting disk to enrich the pattern effect of the dynamic light spot. The focusing assembly is arranged above the pattern assembly to change the virtuality and reality of the light spot and further enhance the effect of the light.

[0046] The specific structure of the rotating cutting disc is detailed in the above-mentioned embodiment 1 and will not be repeated here.

[0047] In the embodiment of the present application, by providing a light source assembly, a pattern assembly, a focusing assembly and the above-mentioned rotating cutting disk, the light emitted by the light source assembly is superimposed with multiple effects, thereby effectively enriching the lighting display effect of the moving head light.

[0048] In the description of the present application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present application; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0049] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0050] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A rotary cutting disc, characterized in that: It comprises a fixed base plate (1), a bearing assembly (2), a power assembly (3), a spot cutter and a spot cutter mounting plate (4); The bearing assembly (2) is fixedly connected to the fixed base plate (1) and is arranged below the central area of ​​the fixed base plate (1); The power assembly (3) comprises a driving motor (31), a large gear (32) and a small gear (33); The output end of the driving motor (31) is connected to the pinion gear (33) to provide power for the pinion gear (33); The pinion gear (33) is arranged on the spot cutter mounting plate (4) and is located below the drive motor (31); The large gear (32) is fixedly connected to the bearing seat of the bearing assembly (2) and meshingly connected to the small gear (33); The spot cutter mounting plate (4) is arranged below the large gear (32) and is fixedly connected to the rotating inner ring of the bearing assembly (2), so that the spot cutter mounting plate (4) can rotate relative to the fixed base plate (1); The spot cutter is arranged on the spot cutter mounting plate.

2. The rotary cutting disc according to claim 1, characterized in that: A first light-through hole (11) is provided in the central area of ​​the fixed substrate (1); A second light-through hole is provided in the central area of ​​the light spot cutter mounting plate (4); The centers of the first light-through hole (11) and the second light-through hole overlap.

3. The rotary cutting disc according to claim 2, characterized in that: The bearing assembly (2) comprises a bearing seat (21), a bearing (22) and a rotating inner ring; The first light-through hole (11), the bearing (22), the bearing seat (21) and the second light-through hole are arranged in sequence from top to bottom; The bearing (22) is matched with the first light-through hole (11) and is fixedly connected to the fixed base plate (1); The bearing seat (21) is fixedly connected to the bearing (22); The rotating inner ring is cocentrically arranged in the bearing seat (21) and is rotatable relative to the bearing seat (21).

4. The rotary cutting disc according to claim 1, characterized in that: The overall shape of the light spot cutter mounting plate (4) is circular, and the rotation angle of the light spot cutter mounting plate (4) relative to the fixed substrate (1) is ±45 degrees.

5. The rotary cutting disc according to claim 1, characterized in that: The ratio of the number of teeth of the large gear (32) to the number of teeth of the small gear (33) is 2:

1.

6. The rotary cutting disc according to claim 1, characterized in that: The height of the large gear (32) and the small gear (33) is less than or equal to one tenth of the movable distance; The movable distance is the distance between the fixed substrate (1) and the light spot cutter mounting plate (4).

7. The rotary cutting disc according to claim 2, characterized in that: The light spot cutter also includes a light spot cutting drive unit (5) and a light cutting blade; The light spot cutting drive unit (5) comprises a cutting motor (51), a synchronous wheel (52) and a synchronous belt (53); The cutting motor (51) and the synchronous wheel (52) are arranged relatively above and below the light spot cutter mounting plate (4), and the synchronous wheel (52) is sleeved on the output shaft of the cutting motor (51); One end of the synchronous belt (53) is connected to the synchronous wheel (52), and the other end is connected to the light cutting plate, driving the light cutting plate to move to the second light through hole.

8. A moving head light, characterized in that: A rotating cutting disc comprising the method according to any one of claims 1 to 7.

9. The moving head light according to claim 8, characterized in that: It also includes a lamp housing, a light source component, a pattern component and a focusing component; The light source component, the pattern component and the focusing component are arranged in sequence from bottom to top in the lamp housing.