Rotary ventilation structure

Abstract

The utility model provides a rotary ventilation structure which comprises a power assembly used for driving a main shaft to rotate; the ventilation assembly is used for realizing rotary ventilation; the ventilation assembly comprises a main shaft, a first sleeve, a second sleeve, a first sealing ring and a second sealing ring; the main shaft is of a hollow cylindrical structure and is provided with two first vent holes; the first sleeve sleeves the position, provided with the first vent hole, of the main shaft, the first sealing ring and the second sealing ring are located on the two sides of the first sleeve and sleeve the main shaft, and the second sleeve sleeves the outer sides of the first sealing ring, the first sleeve and the second sealing ring; an annular groove is formed in the outer wall of the first sleeve, and two spiral through grooves which are symmetrically distributed with the rotating axis of the main shaft as the center are formed in the annular groove. The rotary ventilation structure provided by the utility model not only improves the ventilation efficiency and the sealing performance, but also simplifies the assembly process by optimizing the design, enhances the durability and the adaptability of the system, and provides a more reliable and flexible solution.

Description

Technical Field

[0001] This utility model relates to the technical field of mechanical transmission ventilation equipment, specifically to a rotary ventilation structure. Background Technology

[0002] Rotary venting structures are crucial components in many industrial applications, enabling the flow of gas or liquid while the spindle rotates. These structures are widely used in various equipment that requires maintaining media transmission under dynamic conditions, such as chemical, pharmaceutical, food processing, and automated production lines. Traditional rotary venting structures typically include a power unit to drive the spindle rotation and a venting unit to provide ventilation during rotation.

[0003] The shortcomings of existing technology:

[0004] 1. Sealing issue: Ensuring a seal between the first sleeve and the main shaft, and between the first sleeve and the second sleeve, during high-speed rotation is a major challenge. Poor sealing may lead to gas leakage, affecting work efficiency and even causing safety hazards.

[0005] 2. Complex assembly requirements: Existing designs often require the precise installation of multiple components, such as the spindle, first sleeve, second sleeve, first sealing ring, and second sealing ring. This increases the difficulty and cost of assembly and places higher demands on maintenance.

[0006] 3. Reliability and Durability: Due to the involvement of multiple moving parts and sealing elements, wear and tear on these parts during long-term use will reduce the reliability and durability of the entire system, especially in harsh working environments.

[0007] 4. Low efficiency: Some designs may not be able to effectively deliver gas from the external air pump to the spindle, or pressure loss may occur during transmission, thus affecting overall efficiency.

[0008] Therefore, existing technologies have shortcomings and need further improvement. Utility Model Content

[0009] To address the problems existing in the prior art, this utility model provides a rotary ventilation structure.

[0010] To achieve the above objectives, the specific solution of this utility model is as follows:

[0011] This utility model provides a rotary ventilation structure, including:

[0012] The power unit is used to drive the spindle rotation;

[0013] Ventilation assembly for enabling rotary ventilation;

[0014] The ventilation assembly includes: a main shaft, a first sleeve, a second sleeve, a first sealing ring, and a second sealing ring;

[0015] The main shaft is a hollow cylindrical structure with two first vent holes through its outer wall;

[0016] The first sleeve is fitted onto the main shaft at the position where the first vent hole is provided. The first sealing ring and the second sealing ring are located on both sides of the first sleeve and fitted onto the main shaft. The second sleeve is fitted onto the outside of the first sealing ring, the first sleeve, and the second sealing ring.

[0017] The outer wall of the first sleeve is provided with an annular groove, and the annular groove is provided with two spiral through grooves symmetrically distributed with the rotation axis of the main shaft as the center;

[0018] The outer wall of the second sleeve is provided with a first air shaft and a second air shaft. The first air shaft and the second air shaft are connected to the annular groove on the outer wall of the first sleeve. The annular groove is connected to the first vent hole through a spiral groove. The first vent hole is connected to the hollow part inside the main shaft, thereby realizing that the inside of the main shaft is connected to the first air shaft and the second air shaft during the rotation of the main shaft, and realizing rotational ventilation.

[0019] Furthermore, the power assembly includes a motor and a gearbox, with the output shaft of the motor connected to the gearbox and the output shaft of the gearbox connected to the main shaft.

[0020] Furthermore, the first air shaft and the second air shaft are respectively connected to the first air port and the second air port of the external air pump.

[0021] Furthermore, a first support is also fitted on the outer side of the second sleeve, and the first air shaft and the second air shaft protrude from the outer wall of the first support.

[0022] Furthermore, the front end of the spindle is provided with a through-hole screw, the center of which is provided with a through hole that communicates with the interior of the spindle.

[0023] Furthermore, a first mounting ring, a second mounting ring, and a third mounting ring are also sleeved on the main shaft inside the first bracket;

[0024] The first mounting ring is located on the side of the second sleeve near the front end of the main shaft, and the second and third mounting rings are located on the side of the second sleeve away from the front end of the main shaft.

[0025] Furthermore, a limiting ring is also provided on the main shaft, which is located between the first mounting ring and the second sleeve.

[0026] Furthermore, a first sealing ring is provided on the outer wall of the front end of the spindle.

[0027] The technical solution of this utility model has the following beneficial effects:

[0028] 1. Highly efficient rotary ventilation: By setting a first ventilation hole on the outer wall of the spindle and an annular groove and spiral groove on the outer wall of the first sleeve, efficient communication between the inside of the spindle and the external air pump is achieved. Even during high-speed rotation of the spindle, stable gas transmission can be guaranteed, improving overall work efficiency.

[0029] 2. Enhanced sealing performance: The first and second sealing rings are located on both sides of the first sleeve, effectively preventing gas leakage, ensuring the system's sealing performance, and improving operational safety and stability.

[0030] 3. Simplified assembly process: Although there are many components, each part is reasonably designed. For example, the relative positions of the first sleeve, the second sleeve, and the sealing ring are clear, which helps to simplify the installation process and reduce assembly difficulty and cost.

[0031] 4. Improved durability and reliability: By optimizing the design, such as using limit rings to restrict the relative movement between components, wear on moving parts is reduced, enhancing the durability and long-term reliability of the equipment.

[0032] 5. High flexibility and adaptability: This structure can adapt to different working conditions and needs. For example, the spindle speed can be changed by adjusting the motor and gearbox to meet the requirements of different application scenarios. In addition, the design of the first and second air shafts allows for the connection of different external air pumps, further enhancing the system's flexibility.

[0033] 6. Easy to maintain and inspect: The design includes a first bracket, through which the first and second air shafts pass through the outer wall of the bracket, facilitating connection and inspection; at the same time, the through-hole screw design makes it convenient to clean or inspect the inside of the spindle. Attached Figure Description

[0034] Figure 1 This is a perspective view of the present invention;

[0035] Figure 2 This is an exploded view of this utility model;

[0036] Figure 3 This is a cross-sectional view of the present invention.

[0037] Attached image captions:

[0038] 1. Ventilation assembly; 2. Main shaft; 3. First sleeve; 4. Second sleeve; 5. First sealing ring; 6. Second sealing ring; 7. First vent hole; 8. Annular groove; 9. Spiral through groove; 10. Motor; 11. Gearbox; 12. First air shaft; 13. Second air shaft; 16. First bracket; 17. Through-hole screw; 18. First mounting ring; 19. Second mounting ring; 20. Third mounting ring; 21. Limiting ring; 22. First sealing ring. Detailed Implementation

[0039] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0040] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0041] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0042] In the description of this embodiment, the terms "upper," "lower," "front," "rear," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0043] Combination Figures 1-3As shown, this utility model provides a rotary ventilation structure, comprising:

[0044] Power assembly, used to drive spindle 2 to rotate;

[0045] Ventilation assembly 1 is used to achieve rotary ventilation;

[0046] The ventilation assembly 1 includes: a main shaft 2, a first sleeve 3, a second sleeve 4, a first sealing ring 5, and a second sealing ring 6;

[0047] The main shaft 2 is a hollow cylindrical structure with two first ventilation holes 7 penetrating through its outer wall;

[0048] The first sleeve 3 is sleeved on the main shaft 2 at the position where the first vent hole 7 is provided. The first sealing ring 5 and the second sealing ring 6 are located on both sides of the first sleeve 3 and sleeved on the main shaft 2. The second sleeve 4 is sleeved on the outside of the first sealing ring 5, the first sleeve 3, and the second sealing ring 6.

[0049] The outer wall of the first sleeve 3 is provided with an annular groove 8, and the annular groove 8 is provided with two spiral through grooves 9 symmetrically distributed with the rotation axis of the main shaft 2 as the center;

[0050] The outer wall of the second sleeve 4 is provided with a first air shaft 12 and a second air shaft 13. The first air shaft 12 and the second air shaft 13 are connected to the annular groove 8 on the outer wall of the first sleeve 3. The annular groove 8 is connected to the first vent hole 7 through the spiral groove 9. The first vent hole 7 is connected to the hollow part inside the main shaft 2, thereby realizing that the inside of the main shaft 2 is connected to the first air shaft 12 and the second air shaft 13 during the rotation of the main shaft 2, and realizing rotational ventilation.

[0051] The power assembly includes a motor 10 and a gearbox 11. The output shaft of the motor 10 is connected to the gearbox 11, and the output shaft of the gearbox 11 is connected to the main shaft 2.

[0052] The first air shaft 12 and the second air shaft 13 are respectively connected to the first air port and the second air port of the external air pump.

[0053] The outer side of the second sleeve 4 is also fitted with a first bracket 16, and the first air shaft 12 and the second air shaft 13 pass through the outer wall of the first bracket 16.

[0054] The front end of the spindle 2 is also provided with a through-hole screw 17, which has a through hole in the center and is connected to the inside of the spindle 2.

[0055] The main shaft 2 is also fitted with a first mounting ring 18, a second mounting ring 19, and a third mounting ring 20 on the inner side of the first bracket 16;

[0056] The first mounting ring 18 is located on the side of the second sleeve 4 near the front end of the main shaft 2, and the second mounting ring 19 and the third mounting ring 20 are located on the side of the second sleeve 4 away from the front end of the main shaft 2.

[0057] The main shaft 2 is also provided with a limiting ring 21, which is located between the first mounting ring 18 and the second sleeve 4.

[0058] A first sealing ring 22 is also provided on the outer wall of the front end of the main shaft 2.

[0059] The principle of this utility model is as follows:

[0060] Power transmission: The motor 10 in the power assembly drives the spindle 2 to rotate after being reduced in speed by the gearbox 11. The output shaft of the motor 10 is connected to the gearbox 11, and the output shaft of the gearbox 11 is directly connected to the spindle 2, which allows for precise control of the speed and torque of the spindle 2.

[0061] Gas transport path:

[0062] The first and second air ports of the external air pump are connected to the first air shaft 12 and the second air shaft 13, respectively.

[0063] The first air shaft 12 and the second air shaft 13 are connected to the annular groove 8 provided on the outer wall of the first sleeve 3.

[0064] The annular groove 8 is provided with two spiral through grooves 9 symmetrically distributed around the rotation axis of the main shaft 2. These spiral through grooves 9 are connected to the first vent hole 7 on the outer wall of the main shaft 2.

[0065] The main shaft 2 has a hollow structure, and its internal space is connected to the first vent 7, thus forming a complete gas transmission path from the external air pump to the inside of the main shaft 2.

[0066] Sealing Guarantee: To ensure no leakage occurs during gas transmission, the first sealing ring 5 and the second sealing ring 6 are located on both sides of the first sleeve 3 and are fitted onto the main shaft 2. This not only prevents gas leakage along the outer wall of the main shaft 2, but also ensures the sealing between the first sleeve 3 and the second sleeve 4.

[0067] Rotary ventilation is achieved because, even during the rotation of the main shaft 2, the design of the spiral groove 9 allows gas to be smoothly transported from the first air shaft 12 or the second air shaft 13 into the main shaft 2, thus achieving stable ventilation during rotation. This design ensures continuous gas transmission regardless of the angle or rotational speed of the main shaft 2.

[0068] Ease of installation and maintenance: A first bracket 16 is provided on the outer side of the second sleeve 4, through which the first air shaft 12 and the second air shaft 13 protrude, facilitating connection and inspection with an external air pump. Furthermore, a through-hole screw 17 is provided at the front end of the main shaft 2, with the central through hole communicating with the interior of the main shaft 2, facilitating cleaning or inspection operations and docking with external equipment. The design of the first mounting ring 18, the second mounting ring 19, the third mounting ring 20, and the limiting ring 21 further enhances the stability of the entire structure and also facilitates assembly and maintenance.

[0069] In summary, the rotary ventilation structure of this utility model, through its carefully designed power transmission system and gas transmission path, ensures efficient and reliable ventilation while also taking into account the system's sealing performance, stability, and ease of maintenance.

[0070] The above description is only a preferred embodiment of the present utility model and does not limit the scope of the present utility model. All equivalent structural transformations made under the present utility model concept and based on the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the protection scope of the present utility model.

Claims

1. A rotating vent structure, characterized by, The utility model relates to a rotating ventilation structure of a main shaft, which comprises: a power assembly for driving the rotation of the main shaft; a ventilation assembly for realizing rotating ventilation; the ventilation assembly comprises a main shaft, a first sleeve, a second sleeve, a first sealing ring and a second sealing ring; the main shaft is a hollow cylindrical structure, and two first ventilation holes are formed through the outer wall of the main shaft; the first sleeve is arranged on the position of the main shaft where the first ventilation holes are arranged, and the first sealing ring and the second sealing ring are arranged on the main shaft on the two sides of the first sleeve; the second sleeve is arranged outside the first sealing ring, the first sleeve and the second sealing ring; an annular groove is formed in the outer wall of the first sleeve, and two spiral grooves are arranged in the annular groove in a symmetrical manner with the rotation axis of the main shaft as the center; a first air shaft and a second air shaft are arranged on the outer wall of the second sleeve, the first air shaft and the second air shaft are in communication with the annular groove of the outer wall of the first sleeve, the annular groove is in communication with the first ventilation holes through the spiral grooves, and the first ventilation holes are in communication with the hollow part inside the main shaft, so that the hollow part inside the main shaft is kept in communication with the first air shaft and the second air shaft during the rotation of the main shaft, and rotating ventilation is realized.

2. The rotating ventilation structure according to claim 1, wherein the power assembly comprises a motor and a gear box, the output shaft of the motor is connected with the gear box, and the output shaft of the gear box is connected with the main shaft.

3. The rotating ventilation structure according to claim 1, wherein the first air shaft and the second air shaft are respectively connected with a first air port and a second air port of an external air pump.

4. The rotating ventilation structure according to claim 1, wherein a first support is further arranged outside the second sleeve, and the first air shaft and the second air shaft pass through the outer wall of the first support.

5. The rotating ventilation structure according to claim 1, wherein a through-hole screw is further arranged at the front end of the main shaft, a through hole is arranged in the center of the through-hole screw, and the through hole is in communication with the inside of the main shaft.

6. The rotating ventilation structure according to claim 1, wherein a first mounting ring, a second mounting ring and a third mounting ring are further arranged inside the first support on the main shaft; the first mounting ring is arranged on the side of the second sleeve close to the front end of the main shaft, and the second mounting ring and the third mounting ring are arranged on the side of the second sleeve away from the front end of the main shaft in sequence.

7. The rotating ventilation structure according to claim 6, wherein a limiting ring is further arranged on the main shaft, and the limiting ring is arranged between the first mounting ring and the second sleeve.

8. The rotating ventilation structure according to claim 1, wherein a first sealing ring is further arranged on the outer wall of the front end of the main shaft.

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