CN210323740U

CN210323740U - Color wheel synchronizing structure of double-color-wheel laser projection system

Info

Publication number: CN210323740U
Application number: CN201921285751.7U
Authority: CN
Inventors: 孙玉琼
Original assignee: Zhuhai Da Sheng Yun Vision Media Technology Co Ltd
Current assignee: Zhuhai Da Sheng Yun Vision Media Technology Co Ltd
Priority date: 2019-08-09
Filing date: 2019-08-09
Publication date: 2020-04-14
Anticipated expiration: 2029-08-09

Abstract

The utility model relates to a laser projection technical field, in particular to a color wheel synchronizing structure of a double-color wheel laser projection system, which comprises a light filtering color wheel and a fluorescent color wheel, wherein a light filtering color wheel connecting shaft A, a fluorescent color wheel connecting shaft B, a shaft A and a shaft B are respectively connected with a driven gear A and a driven gear B in a key mode; the transmission mechanism further comprises a transmission shaft, two ends of the transmission shaft are respectively in key connection with a transmission gear C and a transmission gear D, the transmission gear C is meshed with the driven gear B, the transmission gear C or the transmission gear D is meshed with a driving gear, the driving gear is in key connection with a rotating shaft of a driving motor, and the transmission gear D is meshed with the driven gear A. The utility model discloses a driving motor has realized the synchronous rotation of fluorescence colour wheel and filtering colour wheel to can satisfy the nimble design that the light path arranged.

Description

Color wheel synchronizing structure of double-color-wheel laser projection system

Technical Field

The invention relates to the technical field of laser projection, in particular to a color wheel synchronization structure of a double-color-wheel laser projection system.

Background

Laser projectors are an emerging class of projector industry that is becoming increasingly popular with the market because of their high brightness, long life, and good color performance. Laser projectors used in the industry at present are divided into a monochromatic laser projector and a three-color laser projector, the three-color laser projector adopts independent laser light sources of three primary colors, and the three-color laser projector has high brightness and good color expression, but is expensive, large in size and difficult in heat dissipation, so that the three-color laser projector is not commonly used. The more common laser projection solution in the industry at present is that the blue laser instrument is luminous, arouse yellow light and green light through yellow phosphor powder and the green phosphor powder on the fluorescence colour wheel, the blue light that the blue laser instrument sent then directly sees through the transparent slide on the fluorescence colour wheel, fluorescence colour wheel rear is provided with the filtering colour wheel, be provided with the transparent slide of different angles on the filtering colour wheel, ruddiness printing opacity piece, green glow printing opacity piece, the transparent slide sees through blue light, yellow light passes red printing opacity piece outgoing red light, green light passes green glow printing opacity piece outgoing green light behind, yellow light passes transparent slide outgoing yellow light. Thus, the red, green, blue and yellow lights can display pictures with different colors. In order to ensure the color gamut, brightness, and other indexes of laser display, the light-emitting ratios of red, green, blue, and yellow lights need to be controlled, that is, the synchronism of the fluorescent color wheel and the filtering color wheel during rotation needs to be controlled.

In order to ensure the rotation synchronism of two color wheels in the prior art, there are generally two ways: one is that two color wheels adopt coaxial design, use a common motor to drive two color wheels, the bad place is that the light path design is fixed, cause the position of other lens on the light path must use the position of these two color wheels as the benchmark, can't change at will, make the light path occupy the bigger space, difficult to realize the miniaturization of the projection system; the other mode is that the fluorescent color wheel and the filtering color wheel are separately controlled by two motors, and the synchronism of the fluorescent color wheel and the filtering color wheel is realized by software, so that the software complexity is caused, the two motors are required to be introduced, the system cost is increased, and the possibility of system failure is improved. Therefore, a design scheme is needed that can not only enable the fluorescent color wheel and the filtering color wheel to synchronously rotate, but also meet the flexible design of light path arrangement, and simultaneously can reduce the use cost of the system and improve the reliability of the system.

Disclosure of Invention

The invention aims to overcome the defects of the background technology and provides a color wheel synchronization structure of a double-color wheel laser projection system.

The invention is realized by the following technical scheme:

a color wheel synchronous structure of a two-color wheel laser projection system comprises a filtering color wheel and a fluorescent color wheel, wherein the filtering color wheel is connected with a shaft A, the shaft A is fixed on a bearing seat through a bearing, the fluorescent color wheel is connected with a shaft B, the shaft B is fixed on the bearing seat through a bearing, and the shaft A and the shaft B are respectively in key connection with a driven gear A and a driven gear B; the transmission shaft is fixed on the bearing seat through a bearing, two ends of the transmission shaft are respectively in key connection with a transmission gear C and a transmission gear D, the transmission gear C is meshed with a driven gear B, the transmission gear D is meshed with a driven gear A, the transmission gear C or the transmission gear D is meshed with a driving gear, and the driving gear is in key connection with a rotating shaft of a driving motor; the driving motor is fixed on the system bottom plate through a fixing seat, and the bearing seat is fixed on the system bottom plate.

The bearing seat is fixed on the system bottom plate through a connecting column.

The invention realizes the synchronous rotation of the fluorescent color wheel and the filtering color wheel through one driving motor, can meet the flexible design of light path arrangement, reduces the use cost of the system and improves the reliability of the system.

Drawings

FIG. 1 is a diagram of a synchronization structure according to the present invention.

FIG. 2 is a schematic diagram of another synchronization structure according to the present invention.

In the figure, 2 drive motor, 3 fixing base, 4 rotating shaft, 5 drive gear, 6 fluorescent color wheel, 7 driven gear B, 9 drive gear C, 11 drive shaft, 12 drive gear D, 14 filter color wheel, 15 driven gear A, 17 shaft A.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. In the description of the present invention, it should be noted that the terms "inside", "outside", "upper", "lower", "front", "rear", and the like indicate orientations or positional relationships based on positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

The invention comprises a driving motor 2, the driving motor 2 is fixed on a system bottom plate through a fixed seat 3 and a screw, and the height and the shape of the fixed seat 3 are designed according to requirements. The rotating shaft 4 of the driving motor 2 is in key connection with a driving gear 5. A transmission shaft 11 is fixed on a bearing seat through a bearing, two ends of the transmission shaft 11 are respectively in key connection with a transmission gear C9 and a transmission gear D12, and the driving gear 5 is meshed with the transmission gear C9 or the transmission gear D12. As shown in FIG. 1, the driving gear 5 is meshed with the transmission gear C9, and the structure layout is adopted. Fig. 2 shows another arrangement in which the drive gear 5 is meshed with the transmission gear D12. The transmission gear C9 and the transmission gear D12 are meshed with the driven gear B7 and the driven gear A15 respectively.

The driven gear A15 is connected with the shaft A17 in a key mode, one end of the shaft A17 is connected with the color filter wheel 14, the other end of the shaft A17 is fixed on a bearing seat through a bearing, and the bearing seat is fixed on a system bottom plate. The driven gear B7 key-type is connected on axle B, axle B one end is connected with fluorescence colour wheel 6, and the other end passes through the bearing to be fixed on the bearing frame, and the bearing frame is fixed on the system bottom plate. The fluorescent color wheel 6 and the filter color wheel 14 are distributed on both sides of the transmission shaft 11.

By the design of the structure, the synchronous rotation of the fluorescent color wheel 6 and the filtering color wheel 14 is realized by one driving motor 2. In addition to this, the invention makes the design of the position of the parts very flexible. For example, the driving gear 5 of the driving motor 2 can be meshed with the transmission gear D12 or the transmission gear C9, and the position of the driving motor 2 can be changed according to requirements. For another example, if the shaft B and the transmission shaft 11 are fixed on the system chassis, the position of the driving motor 2 and the position of the color filter wheel 14 may be changed on a trajectory of the meshing rotation around the transmission shaft 11, that is, the position of the driving motor 2 and the position of the color filter wheel 14 may be maintained at a certain position in the meshing rotation. When the position is changed, the bearing seat is not arranged on the system bottom plate and can not be directly fixed on the system bottom plate, the lower end of the bearing seat can be downwards connected with the connecting column, and the connecting column is fixed on the system bottom plate. The connecting column can be directly welded below the bearing seat and can also be fixed on the bearing seat through screws. The above only illustrates the conversion of partial structure, and the position of the fluorescent color wheel 6 and/or the driving motor 2 may be changed by fixing the filter color wheel 14 and the transmission shaft 11 on the system bottom plate without moving according to the need. The structure layout of the invention is very flexible, and the positions of all the components can be changed according to the actual structure requirement so as to realize the transmission purpose.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; those of ordinary skill in the art will understand that: the technical solutions described in the above embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. A color wheel synchronizing structure of a two-color wheel laser projection system comprises a filtering color wheel (14) and a fluorescent color wheel (6), and is characterized in that: the filtering color wheel (14) is connected with a shaft A (17), the shaft A (17) is fixed on a bearing seat through a bearing, the fluorescent color wheel (6) is connected with a shaft B, the shaft B is fixed on the bearing seat through a bearing, and the shaft A (17) and the shaft B are respectively in key connection with a driven gear A (15) and a driven gear B (7); the transmission mechanism is characterized by further comprising a transmission shaft (11), the transmission shaft (11) is fixed on the bearing seat through a bearing, two ends of the transmission shaft (11) are respectively in key connection with a transmission gear C (9) and a transmission gear D (12), the transmission gear C (9) is meshed with a driven gear B (7), the transmission gear D (12) is meshed with a driven gear A (15), the transmission gear C (9) or the transmission gear D (12) is meshed with a driving gear (5), and the driving gear (5) is in key connection with a rotating shaft (4) of a driving motor (2); the driving motor (2) is fixed on the system bottom plate through the fixing seat (3), and the bearing seat is fixed on the system bottom plate.

2. The color wheel synchronization structure of a dual color wheel laser projection system as claimed in claim 1, wherein: the bearing seat is fixed on the system bottom plate through a connecting column.