Silent gear and rack transmission structure for clean room

Abstract

The utility model relates to clean room equipment technical field, and disclose a kind of mute gear rack drive structure for clean room, including mute rack, the bottom of mute rack is slidably connected with mute wheel roller cylinder, the rear end of mute wheel roller cylinder is fixedly connected with mute wheel sealing plate, the front end of mute wheel roller cylinder is fixedly connected with mute wheel support main body, fixedly connected component is arranged between mute wheel support main body, mute wheel roller cylinder and mute wheel sealing plate, the utility model has obvious advantages, its roller gear and rack cambered surface line contact, combine novel material, greatly reduce powder generation, reduce pollution, guarantee product quality, the unique roller wheel structure increases stress surface, improves transmission intensity and stability, prolongs service life, reduces equipment failure, in addition, installation mode is reasonable, it is convenient and clean room equipment integration, improve equipment overall performance, meet the use demand of clean room high accuracy, high stability.

Description

Technical Field

[0001] This utility model relates to the field of cleanroom equipment technology, specifically to a silent gear and rack transmission structure for cleanrooms. Background Technology

[0002] In the operation of equipment in cleanrooms, the gear and rack transmission structure is crucial. However, existing related technologies have significant defects. On the one hand, conventional metal gears and racks have prominent problems in cleanroom applications. When metal materials are used for a long time, due to frequent friction between the teeth, metal powder is easily generated. This powder will be dispersed in the cleanroom, not only directly polluting the cleanroom environment and compromising its high cleanliness requirements, but also causing secondary pollution to the cleaned products in the production process, seriously affecting product quality.

[0003] On the other hand, while some new engineering materials for gears and racks can avoid powder generation, they are prone to mechanical damage and failure due to unreasonable structural design. In actual use, the service life of such gears and racks is generally short, leading to frequent equipment downtime. Equipment downtime not only reduces production efficiency and increases production costs, but may also cause additional wear and tear on other parts of the equipment due to frequent starting and stopping, further shortening the overall service life of the equipment and affecting the continuity and stability of production. In summary, it is urgent to develop a silent gear and rack transmission structure that meets the cleanliness requirements of cleanrooms and has high stability and long service life. This is of great significance for improving the operating efficiency of cleanroom equipment and product quality. To this end, we propose a silent gear and rack transmission structure for cleanrooms. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a silent gear and rack transmission structure for cleanrooms, which solves the aforementioned problems.

[0005] To achieve the above-mentioned objectives, this utility model provides the following technical solution:

[0006] A silent gear and rack transmission structure for cleanrooms includes a silent rack, a silent wheel roller cylinder slidably connected to the bottom of the silent rack, a silent wheel sealing plate fixedly connected to the rear end of the silent wheel roller cylinder, and a silent wheel support body fixedly connected to the front end of the silent wheel roller cylinder. A fixed connection assembly is provided between the silent wheel support body, the silent wheel roller cylinder, and the silent wheel sealing plate.

[0007] Preferably, the side of the silent rack is provided with equally spaced rack fixing threaded grooves, and the bottom of the silent rack is fixedly connected with equally spaced roller arc teeth.

[0008] Preferably, the front side of the silent wheel support body is provided with screw mounting grooves that are evenly distributed through the bottom; the front part of the silent wheel support body is provided with a silent wheel connecting through hole; the inner side of the silent wheel connecting through hole is provided with a silent wheel fixing connecting screw hole; the rear side of the silent wheel support body is provided with a communicating positioning groove; the interior of the screw mounting groove is connected to the interior of the communicating positioning groove; and a silent wheel sealing plate is slidably connected to the rear end of the silent wheel support body.

[0009] Preferably, the front side of the silent wheel sealing plate is provided with equidistantly distributed connecting positioning grooves, and the rear side of the silent wheel sealing plate is provided with equidistantly distributed nut mounting grooves that penetrate the interior. The interior of the nut mounting grooves is connected to the interior of the connecting positioning grooves, and a silent wheel roller cylinder is fixedly connected to the inner side of the connecting positioning grooves.

[0010] Preferably, the fixed connection assembly includes a fixed connection bolt and a fixed connection nut. The fixed connection bolt is slidably connected to the inner side of the screw mounting groove, the fixed connection nut is slidably connected to the inner side of the nut mounting groove, the fixed connection bolt is slidably connected to the inner side of the silent wheel roller cylinder, and the fixed connection nut is threaded to the rear end of the fixed connection bolt.

[0011] Preferably, the bottom of the silent rack has an arc shape between two adjacent roller arc teeth, and the bottom of the silent rack meshes with the silent wheel roller cylinder for transmission.

[0012] Compared with the prior art, the advantages of this utility model are:

[0013] A silent gear and rack transmission structure for cleanrooms is provided, which has the following advantages:

[0014] 1. Reduced contamination risk: The roller gear structure design uses 304 stainless steel round bars with a surface roughness of 1.6. The contact between the gear rollers and the silent rack is an arc-shaped line contact, which greatly reduces the powder generated by contact friction. At the same time, the rack structure is made of new materials such as PP or BOM, which further reduces the generation of metal powder, avoids contamination of the cleanroom environment and secondary contamination of the cleaning products, and ensures product quality.

[0015] 2. Improve transmission stability and strength: The silent gear rack adopts a roller wheel structure, which increases the force-bearing surface and improves the overall strength of the transmission structure. In the long-term use, it can effectively reduce mechanical damage, extend service life, reduce the probability of frequent equipment downtime, ensure the continuity and stability of production, and reduce additional losses and cost increases caused by equipment failure.

[0016] 3. Compatible with cleanroom equipment: The roller arc tooth structure design of the silent rack makes it more reasonable to match the silent wheel, and the transmission is more stable. In addition, the silent rack is fixed to the equipment frame by the threaded through groove on the side of the rack fixing installation. The silent wheel is connected to the motor shaft by a flat key. This installation method facilitates integration with cleanroom equipment and improves the overall performance and operating efficiency of the equipment. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram showing the overall structure of this utility model disassembled;

[0019] Figure 3 This is a cross-sectional view of the overall structure of this utility model;

[0020] Figure 4 This is a cross-sectional view of some of the structural fixed connection components in this utility model.

[0021] In the diagram: 1. Silent rack; 2. Threaded groove for rack fixing; 3. Roller arc teeth; 4. Fixing bolt; 5. Silent wheel support body; 6. Silent wheel connecting through hole; 7. Silent wheel fixing bolt hole; 8. Silent wheel roller cylinder; 9. Silent wheel sealing plate; 10. Screw mounting groove; 11. Connecting positioning groove; 12. Fixing nut; 13. Nut mounting groove. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-4 This utility model provides a technical solution:

[0024] A silent gear and rack transmission structure for cleanrooms includes a silent rack 1, a silent wheel roller cylinder 8 slidably connected to the bottom of the silent rack 1, a silent wheel sealing plate 9 fixedly connected to the rear end of the silent wheel roller cylinder 8, a silent wheel support body 5 fixedly connected to the front end of the silent wheel roller cylinder 8, and a fixed connection assembly provided between the silent wheel support body 5, the silent wheel roller cylinder 8 and the silent wheel sealing plate 9.

[0025] Furthermore, the side of the silent rack 1 is provided with equally spaced rack fixing threaded grooves 2, and the bottom of the silent rack 1 is fixedly connected with equally spaced roller arc teeth 3.

[0026] Furthermore, the front side of the silent wheel support body 5 is provided with screw mounting grooves 10 that are evenly distributed through the bottom. The front part of the silent wheel support body 5 is provided with a silent wheel connecting through hole 6. The inner side of the silent wheel connecting through hole 6 is provided with a silent wheel fixing connecting screw hole 7. The rear side of the silent wheel support body 5 is provided with a connecting positioning groove 11. The interior of the screw mounting groove 10 is connected to the interior of the connecting positioning groove 11. The rear end of the silent wheel support body 5 is slidably connected with a silent wheel sealing plate 9.

[0027] Furthermore, the front side of the silent wheel sealing plate 9 is provided with equidistantly distributed connecting positioning grooves 11, and the rear side of the silent wheel sealing plate 9 is provided with equidistantly distributed nut mounting grooves 13 that penetrate the interior. The interior of the nut mounting grooves 13 is connected to the interior of the connecting positioning grooves 11, and the inner side of the connecting positioning grooves 11 is fixedly connected to the silent wheel roller cylinder 8.

[0028] Furthermore, the fixed connection assembly includes a fixed connection bolt 4 and a fixed connection nut 12. The fixed connection bolt 4 is slidably connected to the inner side of the screw mounting groove 10, the fixed connection nut 12 is slidably connected to the inner side of the nut mounting groove 13, the fixed connection bolt 4 is slidably connected to the inner side of the silent wheel roller cylinder 8, and the fixed connection nut 12 is threaded to the rear end of the fixed connection bolt 4. Through the action of the fixed assembly, the fixed connection between the silent gears is realized.

[0029] Furthermore, the bottom of the silent rack 1 has an arc shape between the two adjacent roller arc teeth 3, and the bottom of the silent rack 1 meshes with the silent wheel roller cylinder 8 for transmission.

[0030] Structural Description:

[0031] Silent rack 1: It is one of the key components of the transmission structure. The side is provided with equally spaced rack fixing threaded grooves 2, which are used to fix the silent rack to the equipment frame by bolts and other connecting parts to ensure its stability during equipment operation. The bottom is fixedly connected with equally spaced roller arc teeth 3. The two adjacent roller arc teeth 3 form an arc shape. This special design can ensure the smoothness of transmission when meshing with the silent wheel roller cylinder 8, and effectively reduce the powder generated by friction.

[0032] Silent wheel roller cylinder 8: The surface of the silent wheel roller cylinder 8 meshes with the roller arc teeth 3 at the bottom of the silent rack 1. During the transmission process, the rotational motion of the motor is converted into linear motion, realizing the reciprocating motion of the silent wheel on the silent rack. Its front end is fixedly connected to the silent wheel support body 5, and its rear end is fixedly connected to the silent wheel sealing plate 9.

[0033] The main body of the silent wheel support 5 has screw mounting grooves 10 that are evenly distributed through the bottom on the front side for installing the fixing bolts 4, so as to achieve a stable connection with the silent wheel roller cylinder 8 and the silent wheel sealing plate 9. The inner side of the silent wheel connecting through hole 6 at the front has a silent wheel fixing connection screw hole 7. The motor shaft is connected to the screw hole through a flat key, thereby driving the silent wheel support body 5 to rotate. The connecting positioning groove 11 on the rear side is connected to the inside of the screw mounting groove 10, which not only facilitates the installation of the fixing bolts 4, but also plays a positioning role to ensure the accuracy of the installation of each component.

[0034] Silent wheel sealing plate 9: The front side has equidistantly distributed connecting positioning grooves 11, which correspond to the connecting positioning grooves 11 on the rear side of the silent wheel support body 5, so that the fixing bolts 4 can pass through and connect with the silent wheel support body 5 and the silent wheel roller cylinder 8. The rear side has equidistantly distributed nut mounting grooves 13 that penetrate the interior, which are used to install the fixing nuts 12, which cooperate with the fixing bolts 4 to tightly fix the components together.

[0035] Fixed connection bolt 4: As a key component of the fixed assembly, it is shaped like a slender rod with a thread at one end for mating with the fixed connection nut 12. The diameter of the rod is designed according to the size and stress of the entire transmission structure to ensure that it can withstand the corresponding tensile and shear forces when connecting the components. In this transmission structure, the fixed connection bolt 4 passes through the screw mounting groove 10 on the front side of the silent wheel support body 5 and the silent wheel roller cylinder 8 in sequence, and extends into the nut mounting groove 13 on the rear side of the silent wheel sealing plate 9. Through the threaded connection with the fixed connection nut 12, the three components are tightly fixed together. Its length is precisely calculated to ensure that it can pass through the components without being too long and affecting the compactness of the overall structure.

[0036] Fixed connection nut 12: Used in conjunction with fixed connection bolt 4. The inner diameter of the nut is precisely matched with the outer diameter of the thread of the fixed connection bolt 4 to ensure a tight and reliable threaded connection between the two. In this structure, the fixed connection nut 12 is installed in the nut mounting groove 13 on the rear side of the silent wheel sealing plate 9. After the fixed connection bolt 4 passes through each component, the fixed connection nut 12 is screwed onto the bolt. By rotating the nut, the friction and self-locking characteristics of the thread are used to firmly fix the silent wheel support body 5, the silent wheel roller cylinder 8 and the silent wheel sealing plate 9, preventing them from relative displacement during transmission. The size and shape of the nut mounting groove 13 are adapted to the fixed connection nut 12, which can provide a stable installation position for the nut and further enhance the stability of the connection.

[0037] Working principle: When using this utility model, the motor shaft is connected to the silent wheel connecting through hole 6 at the front end of the silent wheel support body 5 via a flat key. When the motor starts, the rotation of the motor shaft drives the silent wheel support body 5 to rotate. Since the silent wheel support body 5 is fixedly connected to the front end of the silent wheel roller cylinder 8, and the silent wheel sealing plate 9 is fixed to the rear end of the silent wheel roller cylinder 8, when the silent wheel support body 5 rotates, it drives the silent wheel roller cylinder 8 to rotate together. The surface of the silent wheel roller cylinder 8 meshes with the roller arc teeth 3 at the bottom of the silent rack 1. During the rotation of the silent wheel roller cylinder 8, its surface contacts and rolls with the roller arc teeth 3, realizing the conversion of the motor's rotational motion into linear motion, causing the silent wheel to reciprocate along the length direction of the silent rack 1. This arc-shaped line contact design, compared with the planar contact of traditional gear racks, reduces the powder generated by friction, and the adjacent two roller arc teeth... The teeth 3 are arc-shaped, ensuring smooth transmission. The silent wheel support body 5, silent wheel roller cylinder 8, and silent wheel sealing plate 9 are connected by a fixed connection assembly. The fixed connection bolt 4 passes through the screw mounting groove 10 and the silent wheel roller cylinder 8 in sequence, and is threadedly connected to the fixed connection nut 12. The nut is installed in the nut mounting groove 13 on the rear side of the silent wheel sealing plate 9. This connection method ensures a stable connection between the components and prevents loosening during transmission, thus ensuring the stability of the entire transmission structure. The silent rack 1 is fixed to the equipment frame by the side rack fixed mounting threaded groove 2 and bolts and other connecting parts, ensuring its stability during equipment operation. After the entire transmission structure is installed on the cleanroom equipment, the forward and reverse rotation of the motor controls the reciprocating motion of the silent wheel on the silent rack, thereby realizing various functions of the equipment and meeting the high precision and high stability requirements of the cleanroom.

[0038] 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 silent gear and rack transmission structure for cleanrooms, comprising a silent rack (1), characterized in that: The bottom of the silent rack (1) is slidably connected to a silent wheel roller cylinder (8), the rear end of the silent wheel roller cylinder (8) is fixedly connected to a silent wheel sealing plate (9), the front end of the silent wheel roller cylinder (8) is fixedly connected to a silent wheel support body (5), and a fixed connection assembly is provided between the silent wheel support body (5), the silent wheel roller cylinder (8) and the silent wheel sealing plate (9).

2. The silent gear and rack transmission structure for cleanrooms according to claim 1, characterized in that: The silent rack (1) has equally spaced rack fixing threaded grooves (2) on its side, and equally spaced roller arc teeth (3) are fixedly connected to the bottom of the silent rack (1).

3. The silent gear and rack transmission structure for cleanrooms according to claim 1, characterized in that: The front side of the silent wheel support body (5) is provided with screw mounting grooves (10) that are evenly distributed through the bottom. The front part of the silent wheel support body (5) is provided with a silent wheel connecting through hole (6). The inner side of the silent wheel connecting through hole (6) is provided with a silent wheel fixing connecting screw hole (7). The rear side of the silent wheel support body (5) is provided with a connecting positioning groove (11). The interior of the screw mounting groove (10) is connected to the interior of the connecting positioning groove (11). The rear end of the silent wheel support body (5) is slidably connected with a silent wheel sealing plate (9).

4. The silent gear and rack transmission structure for cleanrooms according to claim 3, characterized in that: The front side of the silent wheel sealing plate (9) is provided with equidistantly distributed connecting positioning grooves (11), and the rear side of the silent wheel sealing plate (9) is provided with equidistantly distributed nut mounting grooves (13) that penetrate the interior. The interior of the nut mounting groove (13) is connected to the interior of the connecting positioning groove (11), and a silent wheel roller cylinder (8) is fixedly connected to the inner side of the connecting positioning groove (11).

5. The silent gear and rack transmission structure for cleanrooms according to claim 4, characterized in that: The fixed connection assembly includes a fixed connection bolt (4) and a fixed connection nut (12). The fixed connection bolt (4) is slidably connected to the inner side of the screw mounting groove (10), the fixed connection nut (12) is slidably connected to the inner side of the nut mounting groove (13), the fixed connection bolt (4) is slidably connected to the inner side of the silent wheel roller cylinder (8), and the fixed connection nut (12) is threaded to the rear end of the fixed connection bolt (4).

6. The silent gear and rack transmission structure for cleanrooms according to claim 2, characterized in that: The bottom of the silent rack (1) has two adjacent roller arc teeth (3) that form an arc shape, and the bottom of the silent rack (1) meshes with the silent wheel roller cylinder (8) for transmission.

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