A gas transmission device
By designing components such as impellers, elastic plates, meshing teeth, and bearings in the gas transmission device, the problem of uneven speed of the motor in the magnetic field was solved, achieving stable rotation and high-efficiency sealing, making it suitable for mechanical devices that require stable driving force.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO JUNBANG NEW MATERIAL CO LTD
- Filing Date
- 2025-07-23
- Publication Date
- 2026-06-26
AI Technical Summary
In environments with strong magnetic fields, motors are easily affected by magnetic forces, leading to uneven rotation speeds and affecting the stable operation of mechanical devices.
The gas transmission device utilizes components such as first and second impellers, elastic plates, meshing teeth, bearings, snap rings, skeleton oil seals, and positioning columns to ensure synchronous rotation of the impellers, improve sealing performance, and reduce the influence of magnetic fields.
Stable rotation of the gas transmission device in a magnetic field environment was achieved, providing a stable torsional driving force and improving the device's sealing performance and ease of maintenance.
Smart Images
Figure CN224414280U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of transmission device technology, specifically a gas transmission device. Background Technology
[0002] With the development of industrialization and the advancement of technology, more and more mechanical devices have been created. In the process of using machinery, it is inevitable to use transmission devices. Transmission devices are energy transmission devices that convert and transmit energy through connection. They are widely used in many mechanical devices that need to provide kinetic energy. The transmission energy in mechanical transmission equipment usually uses an electric motor as the transmission source. When electrical energy passes through an electromagnet and winding coil, it can generate a rotating magnetic field, thereby driving the rotor to rotate. The output shaft of the rotor can provide rotational power to the mechanical equipment for use as a drive device.
[0003] In environments with strong magnetic fields, when using an electric motor as a power source, electromagnets with low magnetic force are easily affected by the electromagnetic field, causing uneven speeds during motor rotation, which is not conducive to providing stable torsional driving force for the device. Utility Model Content
[0004] The purpose of this invention is to provide a gas transmission device to solve the problem mentioned in the background art, which is that the motor is easily affected by magnetic force, resulting in uneven rotation speed.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a gas transmission device, including a bottom shell, a top cover placed on the outer surface of the bottom shell, and mounting holes provided on the outer surfaces of both the top cover and the bottom shell, the outer surfaces of the bottom shell and the top cover being in contact with each other, a first rotating shaft being rotatably mounted inside the bottom shell, a second rotating shaft being rotatably mounted inside the bottom shell, a first impeller being engaged with the outer surface of the first rotating shaft, a second impeller being engaged with the outer surface of the second rotating shaft, and the outer surface of the second impeller being in close contact with the outer surface of the first impeller, an air outlet being threadedly mounted on the outer surface of one end of the bottom shell, and an air inlet being threadedly mounted on the end of the bottom shell away from the air outlet, and the air inlet and air outlet being symmetrically designed.
[0006] Preferably, a first elastic sheet is inserted and installed on the outer surface of the first impeller, and the outer surface of the first elastic sheet is in contact with the inner surface of the bottom shell. A second elastic sheet is inserted and installed on the side surface of the second impeller, and the outer surface of the second elastic sheet is in contact with the inner surface of the bottom shell. Engaging teeth are uniformly fixedly provided on the outer surface of the second impeller, and the engaging teeth engage with the first impeller.
[0007] By adopting the above technical solution, the sealing performance of the first and second impellers during rotation can be improved by setting the first and second elastic plates, the driving force of the first and second impellers during rotation can be increased, and the engagement of the meshing teeth with the first impeller can allow the first and second impellers to rotate synchronously. Furthermore, the elasticity of the first and second elastic plates themselves allows them to replenish themselves after long-term use, thereby extending their service life and improving the stability and synchronization of the first and second impellers when blown by wind.
[0008] Preferably, snap rings are respectively engaged at both ends of the first and second rotating shafts, and the outer surfaces of the snap rings are respectively in contact with the outer surfaces of the first and second impellers.
[0009] By adopting the above technical solution, the snap ring allows the first and second rotating shafts to be easily disassembled when damaged, facilitating the replacement and maintenance of parts, and also providing a limit for the first impeller, the second impeller, and the bearing.
[0010] Preferably, bearings are inserted and installed on the outer surfaces of the two ends of the first and second rotating shafts, and the outer surfaces of the bearings are respectively engaged with the outer surfaces of the bottom shell and the top cover. The bottom shell, the top cover, the first rotating shaft, the second rotating shaft, and the bearings are interference fit.
[0011] By adopting the above technical solution and using bearings, the smoothness of the rotation of the first and second shafts inside the bottom shell and top cover can be improved, the friction of the first and second shafts during rotation can be reduced, the first and second shafts can rotate more smoothly, and the work loss when the wind blows can be reduced.
[0012] Preferably, the outer surfaces of the first and second rotating shafts do not fit against the outer surfaces of the bottom shell and the top cover, and one end of the second and first rotating shafts passes through the outer surface of the top cover.
[0013] By adopting the above technical solution, gears can be installed at the ends of the first and second rotating shafts located outside the top cover, which further improves the synchronous rotation rate of the first and second rotating shafts when the air passes through the first and second impellers, and further reduces the stability and smoothness of the first and second rotating shafts when they rotate.
[0014] Preferably, a skeleton oil seal ring is inserted and installed on the outer surface of the top cover, and the skeleton oil seal ring is in contact with the outer surface of the first rotating shaft and the second rotating shaft respectively. The skeleton oil seal ring is concentrically designed with the first impeller and the second impeller respectively. A sealing ring is placed on the outer surface of the bottom shell, and the outer surface of the sealing ring is in contact with the outer surface of the bottom shell and the top cover respectively.
[0015] By adopting the above technical solution, the use of skeleton oil seal ring and sealing ring can enhance the sealing between the bottom shell and the top cover, and enhance the sealing between the top cover, the first rotating shaft and the second rotating shaft. When air enters the interior of the bottom shell and the top cover through the air outlet, it will not leak air and cause a decrease in the rotation efficiency of the first rotating shaft and the second rotating shaft.
[0016] Preferably, the outer surfaces of both ends of the bottom shell are respectively fitted with limiting blocks, and the outer surfaces of the limiting blocks are fitted with positioning posts. The two ends of the positioning posts are tapered, and the positioning posts are inserted into the bottom shell and the top cover. The outer surface of the top cover is in contact with the outer surface of the limiting blocks.
[0017] By adopting the above technical solution, the conical design of the positioning post makes it easier to insert the limiting block into both ends of the bottom shell, and the positioning post can be used to align and correct the position of the top cover, further reducing the chance of air leakage between the bottom shell and the top cover.
[0018] Compared with the prior art, the beneficial effects of this utility model are: the gas transmission device:
[0019] 1. During use, air will enter the sealed bottom shell and top cover through the air inlet, which will drive the first impeller and the second impeller to rotate, and drive the first shaft and the second shaft to rotate together. The air can rotate along the inside of the bottom shell and be discharged from the air outlet at the other end, so that the transmission device will not produce uneven speed due to the influence of magnetic force, and provide a stable torsional driving force for the machine that needs to be driven.
[0020] 2. By engaging the snap ring with the first and second rotating shafts, the first and second impellers are prevented from moving back and forth during use. This also limits the bearing position, ensuring that after the bottom shell and top cover are fixed together, the bearings, first rotating shaft, first impeller, second rotating shaft, and second impeller are firmly fixed inside the bottom shell and top cover without moving back and forth. The use of the bearings also improves the smoothness of the rotation of the first and second rotating shafts, reduces the energy loss caused by wind blowing through the first and second impellers, and facilitates the installation, disassembly, and maintenance of the first rotating shaft, first impeller, second rotating shaft, second impeller, and bearings.
[0021] 3. By using the first and second elastic plates, the sealing performance of the first and second impellers can be improved during rotation. The elasticity of the first and second elastic plates allows them to automatically pop out and fit against the inner surface of the bottom shell after wear, improving the sealing performance and ensuring service life. It also makes it easy to replace the first and second elastic plates.
[0022] 4. The use of skeleton oil seal rings and sealing rings can greatly improve the sealing performance after the bottom shell and top cover are closed and fixed together, as well as the sealing performance between the top cover, the first rotating shaft and the second rotating shaft. At the same time, the insertion and positioning of the limiting block and positioning post with the bottom shell and top cover further improves the airtightness after the bottom shell and top cover are closed, reduces the probability of gas leakage when passing through the bottom shell and top cover, and ensures the working efficiency of the gas transmission device. Attached Figure Description
[0023] Figure 1 This is a three-dimensional structural diagram of the bottom shell and top cover of this utility model;
[0024] Figure 2 This is a cross-sectional perspective view of the bottom shell and top cover of this utility model.
[0025] Figure 3 This is a three-dimensional cross-sectional view of the top cover and positioning post of this utility model;
[0026] Figure 4 This is a cross-sectional perspective view of the bottom shell and the first impeller of this utility model.
[0027] Figure 5 This is an exploded three-dimensional structural diagram of the bottom shell and the second rotating shaft of this utility model;
[0028] Figure 6 This is a three-dimensional exploded view of the bearing and retaining ring of this utility model;
[0029] Figure 7 This is a schematic diagram of the exploded three-dimensional structure of the first and second elastic sheets of this utility model.
[0030] In the diagram: 1. Bottom shell; 2. Top cover; 3. Air outlet; 4. Air inlet; 5. First rotating shaft; 6. First impeller; 7. Second rotating shaft; 8. Second impeller; 9. First elastic plate; 10. Second elastic plate; 11. Bearing; 12. Snap ring; 13. Skeleton oil seal ring; 14. Engaging teeth; 15. Sealing ring; 16. Limiting block; 17. Positioning post. Detailed Implementation
[0031] 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.
[0032] Please see Figure 1-7This utility model provides a technical solution: a gas transmission device, including a bottom shell 1, a top cover 2 placed on the outer surface of the bottom shell 1, and mounting holes provided on both the top cover 2 and the outer surface of the bottom shell 1. The outer surfaces of the bottom shell 1 and the top cover 2 are in close contact. A first rotating shaft 5 is rotatably mounted inside the bottom shell 1, and a second rotating shaft 7 is rotatably mounted inside the bottom shell 1. A first impeller 6 is engaged with the outer surface of the first rotating shaft 5, and a second impeller 8 is engaged with the outer surface of the second rotating shaft 7. The outer surface of the second impeller 8 is in close contact with the outer surface of the first impeller 6. The outer surface of the first impeller 6 is fitted with a first elastic plate 9, and the outer surface of the first elastic plate 9 is in contact with the inner surface of the bottom shell 1. The side surface of the second impeller 8 is fitted with a second elastic plate 10, and the outer surface of the second elastic plate 10 is in contact with the inner surface of the bottom shell 1. The outer surface of the second impeller 8 is uniformly fixed with meshing teeth 14, and the meshing teeth 14 mesh with the first impeller 6. One end of the outer surface of the bottom shell 1 is threaded with an air outlet 3, and the end of the bottom shell 1 away from the air outlet 3 is threaded with an air inlet 4, and the air inlet 4 and the air outlet 3 are symmetrically designed.
[0033] Firstly, during use, simply insert the air tubes into the air outlet 3 and air inlet 4 respectively, and release the gas. This will cause the gas to drive the first impeller 6 and the second impeller 8 respectively. Utilizing the meshing teeth 14, the first impeller 6 and the second impeller 8 can rotate synchronously. Through the use of the first elastic plate 9 and the second elastic plate 10, the sealing between the first impeller 6, the second impeller 8 and the bottom shell 1 is improved, preventing gas leakage when driving the first impeller 6 and the second impeller 8 to rotate. This greatly improves the rotational efficiency of the first rotating shaft 5 and the second rotating shaft 7. Finally, the gas is sent out through the air outlet 3, ensuring that the gas transmission device is not affected by magnetic fields during use, and greatly improving the stability of the gas transmission device during operation.
[0034] The first rotating shaft 5 and the second rotating shaft 7 are respectively fitted with retaining rings 12, and the outer surfaces of the retaining rings 12 are respectively in contact with the outer surfaces of the first impeller 6 and the second impeller 8. The outer surfaces of the first rotating shaft 5 and the second rotating shaft 7 are respectively inserted and installed with bearings 11, and the outer surfaces of the bearings 11 are respectively in contact with the outer surfaces of the bottom shell 1 and the top cover 2. The bottom shell 1, the top cover 2, the first rotating shaft 5 and the second rotating shaft 7 and the bearings 11 are interference fit.
[0035] Secondly, the retaining rings 12 are respectively inserted into the first rotating shaft 5 and the second rotating shaft 7, so that the first impeller 6 and the second impeller 8 can be limited after installation, and can also be limited after the bearing 11 is installed on the outer surface of the first rotating shaft 5 and the second rotating shaft 7. Then, the bottom shell 1 and the top cover 2 are fastened and fixed, so that the first rotating shaft 5 and the second rotating shaft 7 can rotate more smoothly and without collision. When the first rotating shaft 5, the first impeller 6, the second rotating shaft 7, the second impeller 8, the first elastic plate 9, the second elastic plate 10, and the bearing 11 are worn or damaged, maintenance and replacement can be carried out in a convenient manner, which greatly improves the convenience of maintenance and the smoothness of rotation when using the gas transmission device.
[0036] A skeleton oil seal ring 13 is inserted and installed on the outer surface of the top cover 2, and the skeleton oil seal ring 13 is in contact with the outer surface of the first rotating shaft 5 and the second rotating shaft 7 respectively. The skeleton oil seal ring 13 is concentrically designed with the first impeller 6 and the second impeller 8 respectively. A sealing ring 15 is placed on the outer surface of the bottom shell 1, and the outer surface of the sealing ring 15 is in contact with the outer surface of the bottom shell 1 and the top cover 2 respectively. The outer surfaces of the first rotating shaft 5 and the second rotating shaft 7 are not in contact with the outer surfaces of the bottom shell 1 and the top cover 2, and one end of the second rotating shaft 7 and the first rotating shaft 5 passes through the outer surface of the top cover 2. Limiting blocks 16 are respectively engaged on the outer surfaces of the two ends of the bottom shell 1, and positioning posts 17 are installed through the outer surface of the limiting blocks 16. The two ends of the positioning posts 17 are tapered, and the positioning posts 17 are inserted into the bottom shell 1 and the top cover 2. The outer surface of the top cover 2 is in contact with the outer surface of the limiting blocks 16.
[0037] Furthermore, during use, the skeleton oil seal ring 13 can effectively improve the sealing performance of the top cover 2, the first rotating shaft 5, and the second rotating shaft 7 during rotation. The use of the sealing ring 15 further improves the sealing performance after the bottom shell 1 and the top cover 2 are closed. The limiting block 16 and the positioning post 17 are inserted into both ends of the bottom shell 1, and the top cover 2 is positioned by the positioning post 17, so that the bottom shell 1 and the top cover 2 can be aligned with each other and ensure the perpendicularity between the first rotating shaft 5 and the second rotating shaft 7. This greatly improves the overall sealing performance of the gas transmission device and reduces the decline in the operation of the gas transmission device caused by gas leakage.
[0038] Working principle: During use, air enters the sealed bottom shell 1 and top cover 2 through the air inlet 4, which drives the second impeller 8. The air moves along the turning point of the second impeller 8. With the meshing of the meshing teeth 14 and the first impeller 6, the first impeller 6 and the second impeller 8 can rotate synchronously. At the same time, the contact between the first elastic plate 9, the second elastic plate 10 and the inner surface of the bottom shell 1 further improves the rotation efficiency of the first rotating shaft 5 and the second rotating shaft 7. Finally, the air is discharged from the air outlet 3, so that the gas transmission device is not affected by magnetic force during use and can rotate stably.
[0039] 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 gas transmission device, comprising a bottom shell (1), a top cover (2) placed on the outer surface of the bottom shell (1), and mounting holes provided on both the outer surfaces of the top cover (2) and the bottom shell (1), the outer surfaces of the bottom shell (1) and the top cover (2) being in contact, a first rotating shaft (5) being rotatably mounted inside the bottom shell (1), and a second rotating shaft (7) being rotatably mounted inside the bottom shell (1), characterized in that: The outer surface of the first rotating shaft (5) is fitted with a first impeller (6), the outer surface of the second rotating shaft (7) is fitted with a second impeller (8), and the outer surface of the second impeller (8) is in close contact with the outer surface of the first impeller (6). One end of the outer surface of the bottom shell (1) is threaded with an air outlet (3), and the end of the bottom shell (1) away from the air outlet (3) is threaded with an air inlet (4), and the air inlet (4) and the air outlet (3) are symmetrically designed.
2. The gas transmission device according to claim 1, characterized in that: The first impeller (6) has a first elastic plate (9) inserted and installed on its outer surface, and the outer surface of the first elastic plate (9) is in contact with the inner surface of the bottom shell (1). The second impeller (8) has a second elastic plate (10) inserted and installed on its side surface, and the outer surface of the second elastic plate (10) is in contact with the inner surface of the bottom shell (1). The second impeller (8) has meshing teeth (14) uniformly fixed on its outer surface, and the meshing teeth (14) mesh with the first impeller (6).
3. The gas transmission device according to claim 1, characterized in that: The first rotating shaft (5) and the second rotating shaft (7) are respectively fitted with snap rings (12), and the outer surface of the snap rings (12) is in contact with the outer surface of the first impeller (6) and the second impeller (8).
4. A gas transmission device according to claim 1, characterized in that: Bearings (11) are respectively inserted and installed on the outer surfaces of the first rotating shaft (5) and the second rotating shaft (7), and the outer surfaces of the bearings (11) are respectively engaged with the outer surfaces of the bottom shell (1) and the top cover (2). The bottom shell (1), the top cover (2), the first rotating shaft (5) and the second rotating shaft (7) are interference fit with the bearings (11).
5. A gas transmission device according to claim 1, characterized in that: The outer surfaces of the first rotating shaft (5) and the second rotating shaft (7) do not fit against the outer surfaces of the bottom shell (1) and the top cover (2), and one end of the second rotating shaft (7) and the first rotating shaft (5) passes through the outer surface of the top cover (2).
6. A gas transmission device according to claim 1, characterized in that: The outer surface of the top cover (2) is fitted with a skeleton oil seal ring (13), and the skeleton oil seal ring (13) is in contact with the outer surface of the first rotating shaft (5) and the second rotating shaft (7). The skeleton oil seal ring (13) is concentrically designed with the first impeller (6) and the second impeller (8). The outer surface of the bottom shell (1) is fitted with a sealing ring (15), and the outer surface of the sealing ring (15) is in contact with the outer surface of the bottom shell (1) and the top cover (2).
7. A gas transmission device according to claim 1, characterized in that: Limiting blocks (16) are respectively engaged on the outer surfaces of the two ends of the bottom shell (1), and positioning posts (17) are installed through the outer surfaces of the limiting blocks (16). The two ends of the positioning posts (17) are tapered, and the positioning posts (17) are inserted into the bottom shell (1). The positioning posts (17) are inserted into the top cover (2), and the outer surface of the top cover (2) is in contact with the outer surface of the limiting blocks (16).