Spherical rolling noise reduction and light blocking assembly

Abstract

The utility model relates to the technical field of optical equipment, in particular to a spherical rolling noise reduction light blocking assembly which comprises a fixed ring and a movable ring, the movable ring and a variable light blocking blade structure are movably installed in the fixed ring, and a first spherical rolling device and a second spherical rolling device are movably installed between the two sides of the movable ring and the fixed ring respectively. A power source acting on the movable ring is arranged on one side of the outer surface of the fixed ring, a plurality of sets of noise reduction and shock absorption devices which are annularly distributed are fixedly installed on the side, close to the variable light blocking blade structure, of the inner wall of the fixed ring, compared with a traditional diaphragm, movement friction resistance can be reduced to the minimum, and movement gaps of movement structural parts can be eliminated; and meanwhile, friction and clearance shaking noise in the movement process can be reduced.

Description

Technical Field

[0001] This utility model relates to the field of optical equipment technology, specifically to a spherical rolling noise reduction and light blocking component. Background Technology

[0002] An aperture stop limits the solid angle of the imaging beam, determining the tilt angle of the outermost rays of the on-axis imaging beam. Rays with angles greater than this are blocked by the aperture stop and cannot enter the image space, thus eliminating the influence of stray light and improving image sharpness and contrast. Furthermore, by adjusting the size and depth of the aperture stop, the angle and number of incident rays can be further controlled, thereby improving image quality. Secondly, the aperture stop limits the lens's collection angle, thus controlling the resolution, depth of field, depth of focus, and image contrast of the image formed by the lens. This is crucial for high-precision imaging, especially in transmission electron microscopy, where the aperture stop can significantly affect image quality and resolution. Thirdly, in illumination systems, the aperture stop protects the sample from stray radiation and is used to measure or modify the beam current, which is essential for ensuring experimental accuracy and sample integrity. Finally, the aperture stop reduces the influence of stray light, thereby improving image contrast, which is very important in optical systems because stray light reduces image sharpness and contrast.

[0003] However, it does have certain flaws and shortcomings that need to be optimized. The specific flaws and shortcomings are as follows:

[0004] 1. Traditional apertures have rigid point or line contact, resulting in high frictional resistance and low transmission efficiency;

[0005] 2. Loud friction noise, rigid impact noise, and rigid propagation of vibrations;

[0006] Therefore, it is necessary to design a spherical rolling noise reduction and light blocking component to solve the problems mentioned in the background art. Utility Model Content

[0007] The purpose of this utility model is to provide a spherical rolling noise reduction and light blocking component, which can minimize the frictional resistance of movement and eliminate the gaps in the movement of moving structural components. At the same time, it can reduce friction and gap shaking noise during movement, thereby effectively solving the problems mentioned in the background art.

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] A spherical rolling noise reduction and light blocking component includes a fixed ring and a moving ring. The moving ring and a variable light blocking blade structure are movably installed inside the fixed ring. A first spherical rolling device and a second spherical rolling device are movably installed on both sides of the moving ring and between the fixed ring, respectively. A power source acting on the moving ring is provided on one side of the outer surface of the fixed ring. Several sets of noise reduction and vibration damping devices distributed in a ring are fixedly installed on the inner wall of the fixed ring near the variable light blocking blade structure.

[0010] As a preferred embodiment of this utility model, the fixed ring includes a base and a top cover, and the several groups of noise reduction and vibration damping devices arranged in a ring are located on the side of the base near the top cover, and the several groups of noise reduction and vibration damping devices arranged in a ring are made of flexible and elastic materials.

[0011] As a preferred embodiment of this utility model, a light source adjustment channel is provided through the interior of the base and the top cover. An assembly buckle is fixedly installed around the side of the top cover near the base. An assembly buckle groove corresponding to the assembly buckle is provided around the base, and the assembly buckle and the assembly buckle groove are engaged.

[0012] As a preferred embodiment of this utility model, the moving ring includes an actuating variable light-blocking blade rotating seat and a gear, and the gear is fixedly installed on the outer surface of the actuating variable light-blocking blade rotating seat near the power source.

[0013] As a preferred embodiment of this utility model, the power source includes a motor body, a drive gear is provided at one end of the motor body near the moving ring, the drive gear and the output shaft on the motor body are fixedly connected by a coupling, the drive gear is meshed with a gear, and the drive gear is located inside the fixed ring.

[0014] In a preferred embodiment of this utility model, the motor body and the outer surface of the stator are fixedly mounted by a motor mount, and the motor mount and the stator are fixedly connected by screws.

[0015] As a preferred embodiment of this utility model, the variable light-blocking blade structure comprises several groups of light-blocking blade bodies arranged in a ring, wherein any two adjacent groups of the several groups of light-blocking blade bodies arranged in a ring are hinged together by a hinge seat.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. In this utility model, the design of the spherical rolling device can be used to convert the rolling motion of the ball into relative rotational displacement between the moving ring and the fixed ring, effectively reducing the friction coefficient during displacement. This effectively reduces the frictional force between the moving ring and the fixed ring during relative rotational displacement, thereby improving the opening and closing efficiency of the light-blocking aperture change. At the same time, it can also reduce the energy consumption of the power source, making the optional configuration more extensive.

[0018] 2. In this utility model, through the design of the noise reduction and vibration damping device, a flexible object with a certain elastic deformation can be placed between the moving ring and the fixed ring to effectively eliminate the radial and axial movement gaps between the moving ring and the fixed ring during the movement process, as well as to compensate for the mechanical clearance error between the power source transmission mechanism and the moving ring, making its transmission efficiency more accurate and effectively eliminating the noise caused by the rigid impact of the transmission mechanism when the moving ring and the fixed ring reverse relative motion. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall unfolded three-dimensional structure of this utility model;

[0020] Figure 2 This is a top view of the external structure of the present invention.

[0021] Figure 3 This is a schematic diagram of the overall side view of the external structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the internal structure of the entire utility model from a frontal view.

[0023] In the diagram: 1. Fixed ring; 11. Base; 12. Top cover; 13. Light source adjustment channel; 14. Assembly buckle seat; 15. Assembly buckle groove; 2. Moving ring; 21. Rotating seat for actuating variable light-blocking blades; 22. Gear; 3. Variable light-blocking blade structure; 31. Light-blocking blade body; 32. Hinge seat; 4. First spherical rolling device; 5. Second spherical rolling device; 6. Power source; 61. Motor body; 62. Drive gear; 63. Motor base; 7. Noise reduction and vibration damping device. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0025] Example:

[0026] This utility model provides a spherical rolling noise reduction and light blocking component, which can minimize the frictional resistance of movement and eliminate the movement gap of moving structural components. At the same time, it can reduce the friction and gap shaking noise during the movement process, thereby effectively solving the problems mentioned in the background art.

[0027] Please see Figures 1-4 This utility model provides a technical solution:

[0028] A spherical rolling noise reduction and light blocking component includes a fixed ring 1 and a moving ring 2. The moving ring 2 and a variable light blocking blade structure 3 are movably installed inside the fixed ring 1. A first spherical rolling device 4 and a second spherical rolling device 5 are movably installed on both sides of the moving ring 2 and between the fixed ring 1, respectively. A power source 6 acting on the moving ring 2 is provided on one side of the outer surface of the fixed ring 1. Several sets of noise reduction and vibration damping devices 7 arranged in a ring are fixedly installed on the inner wall of the fixed ring 1 near the variable light blocking blade structure 3. The whole assembly can be installed in the optical path of optical equipment, and is not limited to optical imaging or observation optical paths. Through the design of the first spherical rolling device 4 and the second spherical rolling device 5, the spherical rolling motion can be converted into relative rotational displacement between the moving ring and the fixed ring, effectively reducing the friction coefficient during displacement. This effectively reduces the frictional force during relative rotational displacement between the moving ring 2 and the fixed ring 1, thereby improving the opening and closing efficiency of the light blocking aperture change. At the same time, it can also reduce the energy consumption of the power source, making the optional configuration more extensive.

[0029] The fixed ring 1 includes a base 11 and a top cover 12. Several groups of noise reduction and vibration damping devices 7 arranged in a ring are located on the side of the base 11 near the top cover 12. The noise reduction and vibration damping devices 7 arranged in a ring are made of flexible and elastic material. Through the design of the noise reduction and vibration damping devices 7 made of flexible and elastic material, mechanical errors can be compensated or eliminated by the flexible and elastic deformation, effectively eliminating the axial movement gap in multi-degree-of-freedom motion, compensating for the mechanical gap between transmission mechanisms, making the transmission efficiency more accurate, and eliminating the rigid impact noise when the transmission mechanisms move relative to each other. The flexible characteristics can effectively suppress and absorb the diffusion and transmission of oscillation waves, making the movement between mechanisms more stable. Thus, it can effectively eliminate the radial and axial axial movement gap between the moving ring 2 and the fixed ring 1 during the motion process, and compensate for the mechanical gap error between the power source transmission mechanism and the moving ring, making its transmission efficiency more accurate and effectively eliminating the noise caused by the rigid impact of the transmission mechanism when the moving ring 2 and the fixed ring 1 move relative to each other.

[0030] Furthermore, in this embodiment, please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 The base 11 and the top cover 12 have a light source adjustment channel 13 that runs through them. The top cover 12 is fixedly installed with an assembly buckle 14 on the side near the base 11. The base 11 has an assembly buckle groove 15 that corresponds to the assembly buckle 14. The assembly buckle 14 and the assembly buckle groove 15 are engaged. The design of the assembly buckle 14 and the corresponding assembly buckle groove 15 makes it easy to disassemble and assemble the base 11 and the top cover 12, thereby facilitating the maintenance, replacement and cleaning of other components inside the fixed ring 1.

[0031] Furthermore, in this embodiment, please refer to Figure 1 , Figure 2, Figure 3 and Figure 4 The moving ring 2 includes a rotating seat 21 for actuating the variable light-blocking blades and a gear 22. The gear 22 is fixedly mounted on the outer surface of the rotating seat 21 near the power source 6. The variable light-blocking blade structure 3 is composed of several groups of light-blocking blade bodies 31 arranged in a ring. Any two adjacent groups of the several groups of light-blocking blade bodies 31 are hinged together by a hinge seat 32. The power source 6 includes a motor body 61. A drive gear 62 is provided at one end of the motor body 61 near the moving ring 2. The drive gear 62 and the output shaft on the motor body 61 are fixedly connected by a coupling. The drive gear 62 and the gear 22 are meshed together. The wheel 62 is located inside the fixed ring 1. The motor body 61 and the outer surface of the fixed ring 1 are fixedly installed by the motor base 63. The motor base 63 and the fixed ring 1 are fixedly connected by screws. When the motor body 61 works, it drives the drive gear 62 to rotate through the coupling. Under the action of the drive gear 62, the gear 22 rotates accordingly. At the same time, under the mechanical action of the variable light-blocking blade rotating seat 21, several groups of light-blocking blade bodies 31 distributed in a ring reach the designated aperture area, realizing the process of changing the light transmission. The design of the gear 22 and the power source 6 makes the whole system electrically adjustable, which is convenient and quick. The whole system can be automatically controlled, semi-automatically, or manually adjusted to change the light-blocking aperture.

[0032] It should be noted that the motor itself is existing technology, so we will not go into details about it here.

[0033] In this embodiment, the specific implementation scenario is as follows: the entire unit is installed in the optical path of optical equipment, and is not limited to optical imaging or observation optical paths. The motor body 61 works, driving the drive gear 62 to rotate through the coupling. Under the action of the drive gear 62, the gear 22 rotates accordingly. At the same time, under the mechanical action of the variable light-blocking blade rotating seat 21, several groups of light-blocking blade bodies 31 arranged in a ring reach the designated aperture area, realizing the process of changing the light transmission. In the entire adjustment process, through the design of the first spherical rolling device 4 and the second spherical rolling device 5, the spherical rolling motion is converted into relative rotational displacement between the moving ring and the fixed ring, effectively reducing the friction coefficient during displacement. This effectively reduces the frictional force between the moving ring 2 and the fixed ring 1 during relative rotational displacement, thereby improving the opening and closing efficiency of the light-blocking aperture change. At the same time, it can also reduce the energy consumption of the power source, making the optional configuration more extensive. It can also be flexible and has The noise reduction and vibration damping device 7, made of a flexible material, utilizes its flexibility and elastic deformation to compensate for or eliminate mechanical errors. It effectively eliminates the axial movement gaps in multi-degree-of-freedom motion, compensates for mechanical gaps between transmission mechanisms, making transmission efficiency more accurate, and eliminates rigid impact noise during relative motion between transmission mechanisms. Its flexible characteristics effectively suppress and absorb the diffusion and transmission of oscillation waves, resulting in smoother motion between mechanisms. This effectively eliminates radial and axial axial movement gaps between the moving ring 2 and the fixed ring 1 during motion, and compensates for mechanical gap errors between the power source transmission mechanism and the moving ring, making transmission efficiency more accurate. It also effectively eliminates noise caused by rigid impacts of the transmission mechanism during relative motion reversal of the moving ring 2 and the fixed ring 1. Compared to traditional apertures, it minimizes motion friction resistance and eliminates movement gaps in moving structural components. It also reduces friction and gap sway noise during motion, making it worthy of widespread application.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A spherical rolling noise reduction and light blocking component, comprising a fixed ring (1) and a moving ring (2), characterized in that: The fixed ring (1) is movably installed with a moving ring (2) and a variable light-blocking blade structure (3). The moving ring (2) is movably installed on both sides and between the fixed ring (1) and the first spherical rolling device (4) and the second spherical rolling device (5). A power source (6) acting on the moving ring (2) is provided on one side of the outer surface of the fixed ring (1). Several sets of noise reduction and vibration damping devices (7) arranged in a ring are fixedly installed on the inner wall of the fixed ring (1) near the variable light-blocking blade structure (3).

2. The spherical rolling noise reduction and light blocking component according to claim 1, characterized in that: The fixed ring (1) includes a base (11) and a top cover (12). The several groups of noise reduction and vibration damping devices (7) arranged in a ring are located on the side of the base (11) close to the top cover (12), and the several groups of noise reduction and vibration damping devices (7) arranged in a ring are made of flexible and elastic materials.

3. The spherical rolling noise reduction and light blocking component according to claim 2, characterized in that: The base (11) and the top cover (12) have a light source adjustment channel (13) through them. The top cover (12) is fixedly installed with an assembly buckle (14) on the side near the base (11). The base (11) has an assembly buckle groove (15) corresponding to the assembly buckle (14) on its periphery, and the assembly buckle (14) and the assembly buckle groove (15) are engaged.

4. The spherical rolling noise reduction and light blocking component according to claim 1, characterized in that: The moving ring (2) includes a variable light-blocking blade rotating seat (21) and a gear (22), and the gear (22) is fixedly installed on the outer surface of the variable light-blocking blade rotating seat (21) near the power source (6).

5. A spherical rolling noise reduction and light blocking component according to claim 4, characterized in that: The power source (6) includes a motor body (61), and a drive gear (62) is provided at one end of the motor body (61) near the moving ring (2). The drive gear (62) and the output shaft on the motor body (61) are fixedly connected by a coupling. The drive gear (62) and the gear (22) are meshed and connected. The drive gear (62) is located inside the fixed ring (1).

6. A spherical rolling noise reduction and light blocking component according to claim 5, characterized in that: The outer surfaces of the motor body (61) and the stator (1) are fixedly mounted by the motor mount (63), and the motor mount (63) and the stator (1) are fixedly connected by screws.

7. A spherical rolling noise reduction and light blocking component according to claim 1, characterized in that: The variable light-blocking blade structure (3) is composed of several groups of light-blocking blade bodies (31) arranged in a ring. Any two adjacent groups of the several groups of light-blocking blade bodies (31) arranged in a ring are hinged together by a hinge seat (32).

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