Rotating wheel structure of camera

Abstract

The utility model provides a rotating wheel structure of a camera, which comprises a mounting partition plate, a first rotating wheel assembly, a second rotating wheel assembly, and a first driving gear and a second driving gear which are arranged on the mounting partition plate, and a rotating shaft is arranged on the mounting partition plate; the first rotating wheel assembly comprises first rotating wheels connected in parallel and a first driven gear engaged with the first driving gear, the first rotating wheels are rotationally connected to the rotating shaft, and a plurality of first hole sites used for installing optical filters are formed in the first rotating wheels; the second rotating wheel assembly comprises second rotating wheels which are connected in parallel and a second driven gear meshed with the second driving gear, the second rotating wheels are rotationally connected to the rotating shaft, a plurality of second hole sites used for installing the light reducing mirror are formed in the second rotating wheels, and the second hole sites and the first hole sites can be overlapped with each other. The industrial camera solves the problems that the transmission ratio of double rotating wheels in an existing industrial camera is small, the shooting time of the camera is long, the transmission structure is complex, the flange distance occupied by a double-rotating-wheel structure is large, and the camera is difficult to thin.

Description

Technical Field

[0001] The present application relates to the technical field of industrial cameras, and in particular to a rotating wheel structure of a camera. Background Art

[0002] At present, the industry's dual-rotor design for industrial cameras mostly uses belt drive or synchronous belt drive. The transmission of this transmission method is relatively small, so the transmission time is too long, resulting in a longer camera shooting time. In addition, the structure of the belt drive or synchronous belt drive is complicated and occupies a large space, which makes the dual-rotor design occupy a large flange distance in the camera, and the camera is difficult to be thinned. Utility Model Content

[0003] The embodiment of the present application provides a camera wheel structure, which solves the problem that the transmission ratio of the dual wheels in the existing industrial camera is relatively small, resulting in a long camera shooting time, and the transmission structure is complex, so the flange distance occupied by the dual wheel structure is large, and the camera is difficult to be thinned.

[0004] The utility model is implemented as follows: a camera wheel structure comprises a mounting baffle, a first wheel assembly, a first driving gear, a second wheel assembly and a second driving gear, wherein the mounting baffle is provided with a rotating shaft perpendicular to the mounting baffle; the first wheel assembly comprises a first wheel and a first driven gear connected in parallel to each other, the first wheel is rotatably connected to the rotating shaft, and the first wheel is provided with a plurality of first holes for installing optical filters; the first driving gear is arranged on the mounting baffle and meshed with the first driven gear; the second wheel assembly comprises a second wheel and a second driven gear connected in parallel to each other, the second wheel is rotatably connected to the rotating shaft, and the second wheel is provided with a plurality of second holes for installing neutral density filters, and the second holes and the first holes can overlap with each other; the second driving gear is arranged on the mounting baffle and meshed with the second driven gear.

[0005] In one embodiment, the first driven gear is an external gear, and the second driven gear is an internal gear; the first driven gear, the first rotating wheel, the second driven gear and the second rotating wheel are all in annular shape and are coaxially arranged.

[0006] In one of the embodiments, the rotating wheel structure of the camera further comprises a photoelectric sensing device, which is disposed on the mounting partition, and the photoelectric sensing device comprises a first photosensitive position and a second photosensitive position distributed radially along the rotating axis;

[0007] The outer diameter of the second rotating wheel is greater than the outer diameter of the first rotating wheel, the first rotating wheel is provided with a plurality of first sensing holes that can completely overlap with the first light sensing position, and the second rotating wheel is provided with a plurality of second sensing holes that can completely overlap with the second light sensing position;

[0008] The first light sensing position is configured to sense the rotation angle of the first rotating wheel when the first sensing hole completely overlaps with the first light sensing position, and the second light sensing position is configured to sense the rotation angle of the second rotating wheel when the second sensing hole completely overlaps with the second light sensing position.

[0009] In one embodiment, the first light sensing position includes a first angle light sensing position and a first reset light sensing position, and the plurality of first sensing holes include a plurality of first angle sensing holes and a first reset sensing hole;

[0010] The first angle light sensing position is configured to sense the rotation angle of the first rotating wheel when the first angle sensing hole completely overlaps with the first angle light sensing position, and the first reset light sensing position is configured to sense whether the first rotating wheel is reset to an initial angle when the first reset sensing hole completely overlaps with the first reset light sensing position.

[0011] In one embodiment, the second light sensing position includes a second angle light sensing position and a second reset light sensing position, and the plurality of second sensing holes include a plurality of second angle sensing holes and a second reset sensing hole;

[0012] The second angle light sensing position is configured to sense the rotation angle of the second rotating wheel when the second angle sensing hole completely overlaps with the second angle light sensing position, and the second reset light sensing position is configured to sense whether the second rotating wheel is reset to the initial angle when the second reset sensing hole completely overlaps with the second reset light sensing position.

[0013] In one embodiment, the number of the first angle sensing holes is four, and the four first angle sensing holes are evenly distributed along the circumference of the first rotating wheel;

[0014] The number of the second angle sensing holes is four, and the four second angle sensing holes are evenly distributed along the circumference of the second rotating wheel.

[0015] In one of the embodiments, the rotating wheel structure of the camera further includes a silent pulley assembly, which is disposed on the mounting baffle, and the silent pulley assembly includes a first pulley and a second pulley;

[0016] The first pulley contacts a surface of the first rotating wheel on one side close to the mounting partition, and is used to straighten the first rotating wheel when the first rotating wheel rotates;

[0017] The second pulley contacts a side surface of the second driven gear close to the mounting partition plate, and is used to straighten the second rotating wheel when the second driven gear and the second rotating wheel rotate together.

[0018] In one embodiment, there are multiple silent pulley assemblies, and the multiple silent pulley assemblies are evenly distributed along the circumference of the first rotating wheel;

[0019] The silent pulley assembly also includes a base, on which a first groove for mounting the first pulley and a second groove for mounting the second pulley are formed, and a depth of the second groove is greater than a depth of the first groove.

[0020] In one embodiment, the first rotating wheel and the first driven gear are detachably connected, and the second rotating wheel and the second driven gear are detachably connected.

[0021] In one embodiment, the first rotating wheel and the second rotating wheel are both rotatably connected to the rotating shaft via bearings.

[0022] In one embodiment, the mounting baffle and the rotating shaft are integrally formed.

[0023] The beneficial effect of the camera wheel structure provided by the present application is that: compared with the prior art, the present application connects the first wheel and the first driven gear together, and the rotation of the first wheel is achieved by the first driving gear meshing with the first driven gear. At the same time, the second wheel and the second driven gear are connected together, and the rotation of the second wheel is achieved by the second driving gear meshing with the second driven gear. This design of realizing a dual-wheel structure by means of gear transmission can greatly improve the transmission ratio, thereby improving the transmission efficiency, thereby greatly shortening the shooting time of the camera, and the use of gear transmission for the dual wheels can also effectively reduce the space occupied by the dual-wheel structure, shortening the flange distance occupied by the dual-wheel structure, which is conducive to reducing the size of the camera and making it thinner overall. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic structural diagram of a rotating wheel structure of a camera provided in an embodiment of the present application;

[0025] Figure 2 is an exploded view of the rotating wheel structure of the camera provided in an embodiment of the present application;

[0026] Figure 3 is a schematic diagram of the gear transmission of the rotating wheel structure of the camera provided in an embodiment of the present application;

[0027] Figure 4 is a schematic structural diagram of a camera provided in an embodiment of the present application, in which a second rotating wheel is not installed;

[0028] Figure 5 is a structural schematic diagram of a first rotating wheel of a rotating wheel structure of a camera provided in an embodiment of the present application;

[0029] Figure 6is a schematic structural diagram of a second rotating wheel of the rotating wheel structure of a camera provided in an embodiment of the present application;

[0030] Figure 7 It is a structural schematic diagram of a silent pulley assembly of a rotating wheel structure of a camera provided in an embodiment of the present application.

[0031] Reference numerals: 1, mounting baffle; 2, rotating shaft; 20, bearing;

[0032] 3. First rotating wheel assembly; 31. First rotating wheel; 310. First hole position; 311. First sensing hole; 3111. First angle sensing hole; 3112. First reset sensing hole; 32. First driven gear; 4. First driving gear;

[0033] 5. Second rotating wheel assembly; 51. Second rotating wheel; 510. Second hole position; 511. Second sensing hole; 5111. Second angle sensing hole; 5112. Second reset sensing hole; 52. Second driven gear; 6. Second driving gear;

[0034] 7. Photoelectric sensing device; 71. first light sensing position; 711. first angle light sensing position; 712. first reset light sensing position; 72. second light sensing position; 721. second angle light sensing position; 722. second reset light sensing position;

[0035] 8. Silent pulley assembly; 81. First pulley; 82. Second pulley; 83. Base. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0037] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0038] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0039] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0040] It should also be noted that, in the embodiments of the present application, the same figure mark is used to represent the same component or the same part. For the same parts in the embodiments of the present application, the figure may only mark one of the parts or components as an example. It should be understood that the figure mark also applies to other identical parts or components.

[0041] The embodiment of the present application provides a camera wheel structure, which solves the problem that the transmission ratio of the dual wheels in the existing industrial camera is relatively small, resulting in a long camera shooting time, and the transmission structure is complex, so the flange distance occupied by the dual wheel structure is large, and the camera is difficult to be thinned.

[0042] The rotating wheel structure of the camera provided in the embodiment of the present application is applied to industrial cameras, and is specifically arranged at the flange distance position of the industrial camera, that is, between the lens and the optical element. With the development of thinning and miniaturization of cameras, the flange distance is getting smaller and smaller. The rotating wheels in existing cameras mostly rely on belt drive or synchronous belt drive, which will make the entire transmission structure larger in volume and more complicated in structure. Only a single rotating wheel can be installed in a smaller flange distance. If dual rotating wheels need to be installed, the flange distance must be increased, which will not achieve the thinning and miniaturization of the camera. The rotating wheel structure of the camera of the present application has dual rotating wheels, and can be installed in a smaller flange distance space, thereby achieving the thinning and miniaturization of the camera.

[0043] refer to Figure 1 and Figure 2The wheel structure of the camera provided in the embodiment of the present application includes a mounting baffle 1, a first wheel assembly 3, a first driving gear 4, a second wheel assembly 5 and a second driving gear 6. The mounting baffle 1 is provided with a rotating shaft 2 perpendicular to the mounting baffle 1; the first wheel assembly 3 includes a first wheel 31 and a first driven gear 32 connected in parallel to each other, the first wheel 31 is rotatably connected to the rotating shaft 2, and the first wheel 31 is provided with a plurality of first holes 310 for installing filters; the first driving gear 4 is provided on the mounting baffle 1 and meshes with the first driven gear 32; the second wheel assembly 5 includes a second wheel 51 and a second driven gear 52 connected in parallel to each other, the second wheel 51 is rotatably connected to the rotating shaft 2, and the second wheel 51 is provided with a plurality of second holes 510 for installing neutral density filters, and the second holes 510 and the first holes 310 can overlap with each other; the second driving gear 6 is provided on the mounting baffle 1 and meshes with the second driven gear 52.

[0044] In the embodiment of the present application, the wheel structure includes two wheels, namely, a first wheel 31 and a second wheel 51, wherein the first wheel 31 is connected with the first driven gear 32, and the first driven gear 32 is driven to rotate by the first driving gear 4, so that the first wheel 31 rotates, and similarly, the second wheel 51 is connected with the second driven gear 52, and the second driven gear 52 is driven to rotate by the second driving gear 6, so that the second wheel 51 rotates. The above transmission method can make the first wheel 31 and the second wheel 51 rotate separately, and the transmission ratio of the gear transmission is much larger than that of the existing belt transmission or synchronous belt transmission, so that the rotation time of the first wheel 31 and the second wheel 51 is shortened, the transmission efficiency is improved, the camera shooting time is shortened, and the shooting efficiency is improved.

[0045] In addition, the first rotating wheel 31 and the second rotating wheel 51 are both driven by gears. Specifically, gear transmission refers to a device that transmits motion and power by a gear pair. It is the most widely used mechanical transmission method in various modern devices. Its transmission is relatively accurate, efficient, compact, reliable, and has a long service life. It can be seen that the rotating wheel structure of the present application has a small overall volume, occupies a small space, can be installed at a smaller flange distance position, has a higher space utilization rate, and is conducive to thinning and miniaturization of the camera.

[0046] It should be noted that the first driving gear 4, the first driven gear 32, the second driving gear 6 and the second driven gear 52 are located on the same plane, so that the first driving gear 4 and the first driven gear 32 are meshed, and the second driving gear 6 and the second driven gear 52 are meshed, which not only increases the transmission ratio, but also makes the size of the gear structure in the thickness direction of the mounting partition 1 smaller. After the first rotating wheel 31 is connected to the first driven gear 32 in parallel, and the second rotating wheel 51 is connected to the second driven gear 52 in parallel, the size of the entire rotating wheel structure in the thickness direction of the mounting partition 1 is also smaller, so that the flange distance occupied by the rotating wheel structure when installed in the camera is smaller, thereby leaving sufficient space for installing other components. In this way, the smaller flange distance of the camera can also well install the rotating wheel structure, which is conducive to thinning the camera.

[0047] In the examples of this application, refer to Figure 5 The first rotating wheel 31 is provided with a first hole 310, and the first hole 310 is used to install the filter. Figure 6 A second hole 510 is provided on the second rotating wheel 51, and the second hole 510 is used to install a neutral density filter. The first rotating wheel 31 and the second rotating wheel 51 rotate respectively so that the filter and the neutral density filter overlap and are coaxially distributed with the lens, thereby realizing the function required for camera shooting.

[0048] Specifically, refer to Figure 5 , the first hole positions 310 on the first rotating wheel 31 can be set to four, and the four first hole positions 310 are evenly distributed around the circumference of the rotating wheel, refer to Figure 6 , four second holes 510 can be set on the second rotating wheel 51, and the four second holes 510 are evenly distributed around the circumference of the rotating wheel, so that the stability of the first rotating wheel 31 and the second rotating wheel 51 during rotation is higher. At least one of the four first holes 310 is installed with a filter, and at least three of the four second holes 510 are installed with a neutral density filter, and each neutral density filter has a different neutral density level. When the first rotating wheel 31 and the second rotating wheel 51 rotate, different filters and neutral density filters with different neutral density levels can be overlapped to achieve different shooting functions required by the camera. The first hole 310 without a filter installed and the second hole 510 without a neutral density filter installed can be used as spare holes. When used in different cameras, all four first holes 310 can be installed with filters and all four second holes 510 can be installed with neutral density filters according to actual needs, so as to meet the shooting needs of different cameras.

[0049] In some embodiments, reference Figure 3, the first driven gear 32 is an external gear, and the second driven gear 52 is an internal gear; the first driven gear 32, the first rotating wheel 31, the second driven gear 52 and the second rotating wheel 51 are all in annular shape and are coaxially arranged. In this way, the first driven gear 32, the second driven gear 52, the first driving gear 4 and the second driving gear 6 can all be in the same plane, which can not only realize the meshing connection between the first driving gear 4 and the first driven gear 32, and the meshing connection between the second driving gear 6 and the second driven gear 52, but also the layout of the first driven gear 32, the second driven gear 52, the first driving gear 4 and the second driving gear 6 is compact, the overall volume of the rotating wheel structure is small, and the space occupied during installation is small, which is conducive to the installation of the rotating wheel structure in a camera with a small flange distance.

[0050] In some embodiments, reference Figure 2 , the first rotating wheel 31 and the first driven gear 32 are detachably connected, and the second rotating wheel 51 and the second driven gear 52 are detachably connected. In this way, the first rotating wheel 31 and the first driven gear 32 can be disassembled and placed separately, and the second rotating wheel 51 and the second driven gear 52 can be disassembled and placed separately, which not only facilitates the separate production of the first rotating wheel 31 and the second rotating wheel 51, thereby improving production efficiency, but also the detachable connection method makes the installation of the first rotating wheel 31 and the second rotating wheel 51 simple, thereby effectively improving the assembly efficiency of the rotating wheel structure.

[0051] For example, the detachable connection between the first rotating wheel 31 and the first driven gear 32 may be bolted, wherein the first rotating wheel 31 is attached to the first driven gear 32 and the first rotating wheel 31 and the first driven gear 32 are connected together by bolts. Similarly, the second rotating wheel 51 and the second driven gear 52 can be detachably connected in a manner that they are connected by bolts. Since the second driven gear 52 and the first driven gear 32 are located in the same plane, and the second rotating wheel 51 is located on the side of the first rotating wheel 31 away from the first driven gear 32, the second rotating wheel 51 cannot fit together with the second driven gear 52. The second rotating wheel 51 and the second driven gear 52 can be connected together by long bolts, or a connecting block can be set on the second driven gear 52 to fit the second rotating wheel 51 and the connecting block. Connecting the second rotating wheel 51 and the connecting block by bolts can also achieve the purpose of connecting the second rotating wheel 51 and the second driven gear 52, and can also make the second rotating wheel 51 and the second driven gear 52 connected more firmly. The second rotating wheel 51 will not shake when it rotates with the rotation of the second driven gear 52, and has better stability.

[0052] In some embodiments, reference Figure 1 , Figure 2 and Figure 4The first rotating wheel 31 and the second rotating wheel 51 are both rotatably connected to the rotating shaft 2 through the bearing 20. This is beneficial to improving the stability of the rotation of the first rotating wheel 31 and the second rotating wheel 51.

[0053] It should be noted that a through hole is provided at the center of the first rotating wheel 31, and the bearing 20 is connected to the through hole to rotatably connect the first rotating wheel 31 to the rotating shaft 2, which is beneficial to improve the stability of the use of the first rotating wheel 31; similarly, a through hole is also provided at the center of the second rotating wheel 51, and the bearing 20 is connected to the through hole to rotatably connect the second rotating wheel 51 to the rotating shaft 2, which is beneficial to improve the stability of the use of the second rotating wheel 51.

[0054] In some embodiments, the mounting baffle 1 and the rotating shaft 2 are integrally formed. This not only improves the manufacturing efficiency, but also makes the connection between the mounting baffle 1 and the rotating shaft 2 more secure, so that the rotating shaft 2 can provide good support for the first rotating wheel 31 and the second rotating wheel 51, so that the first rotating wheel 31 and the second rotating wheel 51 can rotate more stably.

[0055] In some embodiments, reference Figure 2 The rotating wheel structure of the camera also includes a photoelectric sensing device 7, which is arranged on the mounting partition 1. The photoelectric sensing device 7 includes a first light sensing position 71 and a second light sensing position 72 distributed radially along the rotating shaft 2; the outer diameter of the second rotating wheel 51 is larger than the outer diameter of the first rotating wheel 31, and the first rotating wheel 31 is provided with a plurality of first sensing holes 311 that can completely overlap with the first light sensing position 71, and the second rotating wheel 51 is provided with a plurality of second sensing holes 511 that can completely overlap with the second light sensing position 72; the first light sensing position 71 is configured to sense the rotation angle of the first rotating wheel 31 when the first sensing holes 311 completely overlap with the first light sensing position 71, and the second light sensing position 72 is configured to sense the rotation angle of the second rotating wheel 51 when the second sensing holes 511 completely overlap with the second light sensing position 72.

[0056] It should be noted that when the first rotating wheel 31 rotates, different first sensing holes 311 on the first rotating wheel 31 will completely overlap with the first light sensing position 71. At this time, the photoelectric sensing device 7 will determine the rotation angle of the first rotating wheel 31 according to the number of first sensing holes 311 overlapping with the first light sensing position 71, thereby making the rotation angle of the first rotating wheel 31 more accurate; similarly, when the second rotating wheel 51 rotates, different second sensing holes 511 on the second rotating wheel 51 will completely overlap with the second light sensing position 72. At this time, the photoelectric sensing device 7 will determine the rotation angle of the second rotating wheel 51 according to the number of second sensing holes 511 overlapping with the second light sensing position 72, thereby making the rotation angle of the second rotating wheel 51 more accurate; through the detection of the rotation angle of the first rotating wheel 31 and the second rotating wheel 51 by the photoelectric sensing device 7, the rotation angle of the first rotating wheel 31 and the second rotating wheel 51 can be made more accurate, so that the filter of the target installed on the first rotating wheel 31 and the neutral density filter of the target installed on the second rotating wheel 51 can overlap, thereby realizing the shooting function required by the camera.

[0057] Among them, the above-mentioned photoelectric sensing device 7 can be a photoelectric sensor, which is a device that converts light signals into electrical signals. Its working principle is based on the photoelectric effect. The photoelectric effect refers to the phenomenon that when light is irradiated on certain substances, the electrons of the substance absorb the energy of photons and a corresponding electrical effect occurs. The photoelectric sensor used in this application is a micro-photoelectric sensor. The micro-photoelectric sensor has the advantages of miniaturization, high precision, fast response, non-contact, versatility, environmental adaptability and low power consumption. Compared with traditional photoelectric sensors, micro-photoelectric sensors are very small and small in size, suitable for installation and integration in a limited space, which is conducive to the installation of the wheel structure in a camera with a small flange distance. In addition, the micro-photoelectric sensor has low power consumption characteristics, is suitable for portable and battery-powered devices, and can adapt to the application of the wheel structure in the camera.

[0058] Specifically, since the photoelectric sensing device 7 needs to have the functions of detecting the rotation angle of the first rotating wheel 31 and the rotation angle of the second rotating wheel 51 at the same time, the first light sensing position 71 and the second light sensing position 72 are distributed along the radial direction of the rotating shaft 2, so that the first light sensing position 71 is used to sense the first sensing hole 311 set on the first rotating wheel 31, and the second light sensing position 72 is used to sense the second sensing hole 511 set on the second rotating wheel 51, and they will not affect each other, so that the angle detection of the first rotating wheel 31 and the angle detection of the second rotating wheel 51 are more accurate. In addition, the first light sensing position 71 and the second light sensing position 72 are staggered along the radial direction of the rotating shaft 2, so that the setting space of the first light sensing position 71 and the second light sensing position 72 on the photoelectric sensing device 7 is sufficient, and the distance between the first light sensing position 71 and the second light sensing position 72 is not too small. The first light sensing position 71 and the second light sensing position 72 will not affect each other when the sensing angle changes, resulting in inaccurate angle detection.

[0059] In some embodiments, reference Figure 3 and Figure 5 The first light sensing position 71 includes a first angle light sensing position 711 and a first reset light sensing position 712, and the multiple first sensing holes 311 include multiple first angle sensing holes 3111 and a first reset sensing hole 3112; the first angle light sensing position 711 is configured to sense the rotation angle of the first rotating wheel 31 when the first angle sensing hole 3111 and the first angle light sensing position 711 are completely overlapped, and the first reset light sensing position 712 is configured to sense whether the first rotating wheel 31 is reset to the initial angle when the first reset sensing hole 3112 and the first reset light sensing position 712 are completely overlapped.

[0060] Specifically, a first angle light sensing position 711 is provided. During the rotation of the first rotating wheel 31, different first angle sensing holes 3111 will pass through the first angle light sensing position 711. The first angle light sensing position 711 can determine the rotation angle of the first rotating wheel 31 by detecting the number of first angle sensing holes 3111 passing through the first angle light sensing position 711, thereby accurately controlling the rotation angle of the first rotating wheel 31.

[0061] In addition, a first reset light-sensing position 712 is provided, and is spaced apart from the first angle light-sensing position 711 along the circumference of the first rotating wheel 31. When the first reset sensing hole 3112 completely overlaps with the first reset light-sensing position 712, it means that the first rotating wheel 31 has rotated to the initial position. Each time the first rotating wheel 31 is rotated from the initial position, the first angle light-sensing position 711 will sense the number of the first angle sensing holes 3111, thereby detecting the rotation angle of the first rotating wheel 31. In this way, the rotation angle of the first rotating wheel 31 can be accurately controlled, and each rotation starts from the initial position, so that the required filter can be accurately rotated to a position coaxial with the camera lens, and the filter selection accuracy is higher.

[0062] In some embodiments, reference Figure 3 and Figure 6 The second light sensing position 72 includes a second angle light sensing position 721 and a second reset light sensing position 722, and the plurality of second sensing holes 511 include a plurality of second angle sensing holes 5111 and a second reset sensing hole 5112; the second angle light sensing position 721 is configured to sense the rotation angle of the second rotating wheel 51 when the second angle sensing hole 5111 and the second angle light sensing position 721 completely overlap, and the second reset light sensing position 722 is configured to sense whether the second rotating wheel 51 is reset to the initial angle when the second reset sensing hole 5112 and the second reset light sensing position 722 completely overlap.

[0063] Specifically, the second angle light sensing position 721 is provided with a, during the rotation of the second rotating wheel 51, different second angle sensing holes 5111 will pass through the second angle light sensing position 721, and the second angle light sensing position 721 can determine the rotation angle of the second rotating wheel 51 by detecting the number of second angle sensing holes 5111 passing through the second angle light sensing position 721, thereby accurately controlling the rotation angle of the second rotating wheel 51.

[0064] In addition, one second reset light-sensing position 722 is provided, and is spaced apart from the second angle light-sensing position 721 along the circumference of the second rotating wheel 51. When the second reset sensing hole 5112 completely overlaps with the second reset light-sensing position 722, it indicates that the second rotating wheel 51 has rotated to the initial position. Each time the second rotating wheel 51 is rotated from the initial position, the second angle light-sensing position 721 will sense the number of the second angle sensing holes 5111, thereby detecting the rotation angle of the second rotating wheel 51. In this way, the rotation angle of the second rotating wheel 51 can be accurately controlled, and each rotation starts from the initial position, so that the required neutral density filter can be accurately rotated to a position coaxial with the camera lens, and the selection accuracy of the neutral density filter is higher.

[0065] In some embodiments, reference Figure 5 and Figure 6 , the number of the first angle sensing holes 3111 is four, and the four first angle sensing holes 3111 are evenly distributed along the circumference of the first rotating wheel 31; the number of the second angle sensing holes 5111 is four, and the four second angle sensing holes 5111 are evenly distributed along the circumference of the second rotating wheel 51. In this way, the angle between each adjacent two first angle sensing holes 3111 is equal, and the angle between each adjacent two second angle sensing holes 5111 is also equal, so that the first angle sensing position can accurately detect the rotation angle of the first rotating wheel 31 by detecting the number of first angle sensing holes 3111 passing through the first angle sensing position, and the second angle sensing position can accurately detect the rotation angle of the second rotating wheel 51 by detecting the number of second angle sensing holes 5111 passing through the second angle sensing position, so as to accurately control the rotation angles of the first rotating wheel 31 and the second rotating wheel 51.

[0066] Example, reference Figure 5, the four first angle sensing holes 3111 are evenly distributed along the circumference of the first rotating wheel 31, that is, the angle between each two adjacent first angle sensing holes 3111 is 90°, and the process of rotating the first rotating wheel 31 is: the first rotating wheel 31 is first rotated until the first reset sensing hole 3112 completely overlaps with the first reset light sensing position 712, at this time, the first rotating wheel 31 is reset to the initial angle, that is, the first rotating wheel 31 is in the initial position, a first angle sensing hole 3111 on the first rotating wheel 31 completely overlaps with the first angle light sensing position 711, and the first angle sensing hole 3111 represents that the first rotating wheel 31 has rotated 0°, and then the first driving Gear 4 drives the first driven gear 32 to rotate, which in turn drives the first rotating wheel 31 to rotate. When the second first angle sensing hole 3111 of the first rotating wheel 31 completely overlaps with the first angle light sensing position 711, it means that the first rotating wheel 31 has rotated 90°. When the third first angle sensing hole 3111 of the first rotating wheel 31 completely overlaps with the first angle light sensing position 711, it means that the first rotating wheel 31 has rotated 180°. In this way, the rotation angle of the first rotating wheel 31 can be accurately determined by detecting the number of first angle sensing holes 3111 passing through the first angle light sensing position 711, so as to accurately control the rotation angle of the first rotating wheel 31.

[0067] refer to Figure 6 , the four second angle sensing holes 5111 are evenly distributed along the circumference of the second rotating wheel 51, that is, the angle between each two adjacent second angle sensing holes 5111 is 90°, and the process of rotating the second rotating wheel 51 is: the second rotating wheel 51 is first rotated until the second reset sensing hole 5112 completely overlaps with the second reset light sensing position 722, at which time the second rotating wheel 51 is reset to the initial angle, that is, the second rotating wheel 51 is in the initial position, a second angle sensing hole 5111 on the second rotating wheel 51 completely overlaps with the second angle light sensing position 721, and the second angle sensing hole 5111 represents that the second rotating wheel 51 has rotated 0°, and then the second driving Gear 6 drives the second driven gear 52 to rotate, thereby driving the second rotating wheel 51 to rotate. When the second second angle sensing hole 5111 of the second rotating wheel 51 completely overlaps with the second angle light sensing position 721, it means that the second rotating wheel 51 has rotated 90°. When the third second angle sensing hole 5111 of the second rotating wheel 51 completely overlaps with the second angle light sensing position 721, it means that the second rotating wheel 51 has rotated 180°. In this way, the rotation angle of the second rotating wheel 51 can be accurately determined by detecting the number of second angle sensing holes 5111 passing through the second angle light sensing position 721, so as to accurately control the rotation angle of the second rotating wheel 51.

[0068] In some embodiments, since the rotation of the first rotating wheel 31 is driven by the first driving gear 4, and the rotation of the second rotating wheel 51 is driven by the second driving gear 6, the first driving gear 4 is meshed with the first driven gear 32, and the second driving gear 6 is meshed with the second driven gear 52, that is, the forward and reverse rotation of the first rotating wheel 31 can be controlled by controlling the forward and reverse rotation of the first driving gear 4, and the forward and reverse rotation of the second rotating wheel 51 can be controlled by controlling the forward and reverse rotation of the second driving gear 6. Specifically, the first driving gear 4 and the second driving gear 6 are respectively connected to driving motors, and the forward and reverse rotation of the first driving gear 4 and the second driving gear 6 can be controlled by controlling the forward and reverse rotation of the driving motor.

[0069] In some embodiments, reference Figure 2-Figure 4 The wheel structure of the camera also includes a silent pulley assembly 8, which is arranged on the mounting baffle 1, and includes a first pulley 81 and a second pulley 82; the first pulley 81 contacts the surface of the first rotating wheel 31 on one side close to the mounting baffle 1, and is used to straighten the first rotating wheel 31 when the first rotating wheel 31 rotates; the second pulley 82 contacts the surface of the second driven gear 52 on one side close to the mounting baffle 1, and is used to straighten the second rotating wheel 51 when the second driven gear 52 and the second rotating wheel 51 rotate together.

[0070] Through the above arrangement, when the first wheel 31 rotates, the first pulley 81 will support the first wheel 31 to rotate together, and when the second wheel 51 rotates, the second pulley 82 will support the second wheel 51 to rotate together. In this way, the first wheel 31 and the second wheel 51 can be straightened when they rotate, avoiding the shaking of the first wheel 31 and the second wheel 51 due to the gap between the inner and outer rings of the bearing 20, so that the wheel surfaces of the first wheel 31 and the second wheel 51 are kept parallel to the mounting partition 1, so that the rotation of the first wheel 31 and the second wheel 51 is more stable.

[0071] Specifically, the first driven gear 32 is connected to the middle part of the first rotating wheel 31, and the second driven gear 52 is connected to the edge part of the second rotating wheel 51. Therefore, the first pulley 81 can be in contact with the first rotating wheel 31, and the second pulley 82 can be in contact with the second driven gear 52. In this way, the same silent pulley assembly 8 can be used to straighten the first rotating wheel 31 and the second rotating wheel 51 at the same time, reducing the number of installed silent pulley assemblies 8, which can not only reduce costs but also simplify the assembly and manufacturing process steps of the rotating wheel structure.

[0072] In some embodiments, reference Figure 3 and Figure 7There are multiple silent pulley assemblies 8, and the multiple silent pulley assemblies 8 are evenly distributed along the circumference of the first rotating wheel 31; the silent pulley assembly 8 also includes a base 83, and the base 83 is provided with a first groove for installing the first pulley 81 and a second groove for installing the second pulley 82, and the depth of the second groove is greater than the depth of the first groove.

[0073] Specifically, refer to Figure 3 Three silent pulley assemblies 8 are arranged and evenly distributed on the mounting partition 1, so that the first rotating wheel 31 and the second rotating wheel 51 can be straightened in a more comprehensive manner when the first rotating wheel 31 and the second rotating wheel 51 rotate, so that the rotation of the first rotating wheel 31 and the second rotating wheel 51 is more stable.

[0074] It should be noted that, since the first driving gear 4, the second driving gear 6, the first driven gear 32 and the second driven gear 52 are in the same plane, and the first rotating wheel 31 is closely connected to the first driven gear 32, the distance between the first rotating wheel 31 and the mounting partition 1 and the distance between the second driven gear 52 and the mounting partition 1 are both very small, and the distance between the first rotating wheel 31 and the mounting partition 1 is greater than the distance between the second driven gear 52 and the mounting partition 1. Based on this, the base 83 of the silent pulley assembly 8 can be embedded in the mounting partition 1, so that the size of the rotating wheel structure in the thickness direction of the mounting partition 1 will not be increased due to the installation of the silent pulley assembly 8, and the depth of the second groove is greater than the depth of the first groove, so that the second pulley 82 installed in the second groove can be lower than the first pulley 81 installed in the first groove, so that the first pulley 81 can just contact with the first rotating wheel 31, and the second pulley 82 can contact with the second driven gear 52, so as to achieve the straightening effect on the first rotating wheel 31 and the second rotating wheel 51.

[0075] Of course, in addition to being embedded in the mounting partition 1, the base 83 of the silent pulley assembly 8 can also directly open the first groove and the second groove on the mounting partition 1, and install the first pulley 81 in the first groove, and install the second pulley 82 in the second groove. In this way, the base 83 can be omitted, and the first groove and the second groove can be made together when the mounting partition 1 is made, which greatly improves the production efficiency of the rotating wheel structure.

[0076] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A camera wheel structure, It is characterized in that include: A mounting partition (1), wherein the mounting partition (1) is provided with a rotation axis (2) perpendicular to the mounting partition (1); A first rotating wheel assembly (3), comprising a first rotating wheel (31) and a first driven gear (32) connected in parallel to each other, the first rotating wheel (31) being rotatably connected to the rotating shaft (2), and the first rotating wheel (31) being provided with a plurality of first holes (310) for mounting optical filters; A first driving gear (4) is disposed on the mounting partition (1) and meshes with the first driven gear (32); A second rotating wheel assembly (5), comprising a second rotating wheel (51) and a second driven gear (52) connected in parallel to each other, the second rotating wheel (51) being rotatably connected to the rotating shaft (2), the second rotating wheel (51) being provided with a plurality of second holes (510) for installing a neutral density filter, the second holes (510) and the first holes (310) being able to overlap each other; The second driving gear (6) is arranged on the mounting partition (1) and meshes with the second driven gear (52).

2. The camera wheel structure according to claim 1, It is characterized in that The first driven gear (32) is an external gear, and the second driven gear (52) is an internal gear; The first driven gear (32), the first rotating wheel (31), the second driven gear (52) and the second rotating wheel (51) are all annular in shape and are coaxially arranged.

3. The camera wheel structure according to claim 2, It is characterized in that Also includes: A photoelectric sensing device (7) is arranged on the mounting partition (1), wherein the photoelectric sensing device (7) comprises a first photosensitive position (71) and a second photosensitive position (72) distributed along the radial direction of the rotating shaft (2); The outer diameter of the second rotating wheel (51) is greater than the outer diameter of the first rotating wheel (31); the first rotating wheel (31) is provided with a plurality of first sensing holes (311) that can completely overlap with the first light sensing position (71); and the second rotating wheel (51) is provided with a plurality of second sensing holes (511) that can completely overlap with the second light sensing position (72); The first light sensing position (71) is configured to sense the rotation angle of the first rotating wheel (31) when the first sensing hole (311) and the first light sensing position (71) are completely overlapped, and the second light sensing position (72) is configured to sense the rotation angle of the second rotating wheel (51) when the second sensing hole (511) and the second light sensing position (72) are completely overlapped.

4. The camera wheel structure according to claim 3, It is characterized in that The first light sensing position (71) includes a first angle light sensing position (711) and a first reset light sensing position (712), and the plurality of first sensing holes (311) include a plurality of first angle sensing holes (3111) and a first reset sensing hole (3112); The first angle light sensing position (711) is configured to sense the rotation angle of the first rotating wheel (31) when the first angle sensing hole (3111) and the first angle light sensing position (711) are completely overlapped, and the first reset light sensing position (712) is configured to sense whether the first rotating wheel (31) is reset to an initial angle when the first reset sensing hole (3112) and the first reset light sensing position (712) are completely overlapped.

5. The camera wheel structure according to claim 4, It is characterized in that The second light sensing position (72) includes a second angle light sensing position (721) and a second reset light sensing position (722), and the plurality of second sensing holes (511) include a plurality of second angle sensing holes (5111) and a second reset sensing hole (5112); The second angle light sensing position (721) is configured to sense the rotation angle of the second rotating wheel (51) when the second angle sensing hole (5111) and the second angle light sensing position (721) are completely overlapped, and the second reset light sensing position (722) is configured to sense whether the second rotating wheel (51) is reset to an initial angle when the second reset sensing hole (5112) and the second reset light sensing position (722) are completely overlapped.

6. The camera wheel structure according to claim 5, It is characterized in that The number of the first angle sensing holes (3111) is four, and the four first angle sensing holes (3111) are evenly distributed along the circumference of the first rotating wheel (31); The number of the second angle sensing holes (5111) is four, and the four second angle sensing holes (5111) are evenly distributed along the circumference of the second rotating wheel (51).

7. The camera wheel structure according to any one of claims 3 to 6, It is characterized in that Also includes: A silent pulley assembly (8) is arranged on the mounting partition (1), and the silent pulley assembly (8) comprises a first pulley (81) and a second pulley (82); The first pulley (81) contacts a surface of the first rotating wheel (31) on one side close to the mounting partition (1), and is used to straighten the first rotating wheel (31) when the first rotating wheel (31) rotates; The second pulley (82) contacts a surface of the second driven gear (52) on one side close to the mounting partition (1) and is used to straighten the second rotating wheel (51) when the second driven gear (52) and the second rotating wheel (51) rotate together.

8. The camera wheel structure according to claim 7, It is characterized in that There are a plurality of the silent pulley assemblies (8), and the plurality of the silent pulley assemblies (8) are evenly distributed along the circumference of the first rotating wheel (31); The silent pulley assembly (8) further comprises a base (83), the base (83) being provided with a first groove for mounting the first pulley (81) and a second groove for mounting the second pulley (82), the depth of the second groove being greater than the depth of the first groove.

9. The camera wheel structure according to any one of claims 1 to 6 and 8, It is characterized in that The first rotating wheel (31) and the first driven gear (32) are detachably connected, and the second rotating wheel (51) and the second driven gear (52) are detachably connected; And / or, the first rotating wheel (31) and the second rotating wheel (51) are both rotatably connected to the rotating shaft (2) via bearings (20).

10. The camera wheel structure according to any one of claims 1 to 6 and 8, It is characterized in that The mounting partition (1) and the rotating shaft (2) are integrally formed.

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