A high-efficiency sealing structure for a high-pressure blower shaft seal
Patent Information
- Application Number
- CN202522697941.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-19
- Publication Date
- 2026-10-27
- Estimated Expiration
- 2035-12-19
AI Technical Summary
[0003]传统的鼓风机的轴封是通过设置密封圈来实现密封的，但是鼓风机长时间使用后密封圈会发生磨损，从而导致轴承端盖的密封效果逐渐变差而开始渗油，因此需要拆卸密封圈进行更换，而传统的对鼓风机的轴封密封圈拆卸较为繁琐不便，不便于进行快速拆卸更换，导致在更换时效率降低，实用性较低，因此存在一定的弊端
[0013]该一种高压鼓风机轴封的高效密封结构，通过旋转调节螺栓时调节螺栓会相对固定板移动，从而推动或拉动活动座沿着导轨移动进而调整活动座的位置，使固定弧板上的密封垫能更好地紧贴转动轴，保证密封效果，当需要更换密封垫时拉动握把，握把带动伸缩杆伸长，同时复位弹簧被拉伸，定位杆随之移动，当固定弧板移动到合适位置紧贴活动座外部后松开握把，复位弹簧的弹力使伸缩杆缩短带动握把和定位杆复位，定位杆在复位弹簧的作用下接入到固定耳上的定位孔内，实现对固定弧板的定位固定，拆装便利，便于对密封垫进行更换，操作便利，实用性更佳。
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Figure CN224903543U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of high-pressure blowers, and in particular to a high-efficiency sealing structure for a high-pressure blower shaft seal. Background Technology
[0002] A high-pressure blower is a power-driven conveying device that generates high-pressure gas. It uses a motor to drive an internal impeller to rotate at high speed. During rotation, the impeller performs work on the gas, increasing its kinetic energy. The gas is then thrown towards the impeller edge and enters the volute casing. The volute casing guides the gas, changing its flow direction. Simultaneously, as the cross-sectional area of the volute casing gradually increases, the gas velocity gradually decreases, while the pressure further increases. Finally, the high-pressure gas is discharged from the blower's outlet. High-pressure blowers are characterized by high pressure, stable flow rate, and reliable operation. Their pressure range is much wider than that of ordinary blowers, enabling them to meet the needs of special working conditions requiring high gas pressure.
[0003] Traditional blowers achieve sealing by using a sealing ring. However, after prolonged use, the sealing ring wears down, causing the sealing effect of the bearing end cover to gradually deteriorate and begin to leak oil. Therefore, it is necessary to remove and replace the sealing ring. However, the traditional method of removing the blower's shaft seal sealing ring is cumbersome and inconvenient, making it difficult to quickly remove and replace. This reduces efficiency and practicality during replacement, thus presenting certain drawbacks.
[0004] Therefore, in order to solve the above problems, this utility model provides a high-efficiency sealing structure for the shaft seal of a high-pressure blower. Utility Model Content
[0005] The purpose of this invention is to provide a high-efficiency sealing structure for the shaft seal of a high-pressure blower, so as to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a high-efficiency sealing structure for a high-pressure blower shaft seal, comprising a blower body, a bearing seat mounted on the outside of the blower body, a through hole at the center of the bearing seat, a rotating shaft disposed on the outside of the blower body through the through hole, fixed plates symmetrically mounted on both ends of the bearing seat, guide rails mounted on the outside of the bearing seat at the top and bottom of the through hole, movable seats mounted on the two guide rails on both sides of the through hole, guide grooves provided on the outside of the movable seats, a fixed arc plate disposed on one end of the movable seats, a guide block disposed on one side of the fixed arc plate inside the guide groove, and a sealing gasket disposed on the inner side wall of the fixed arc plate, closely attached to the outside of the rotating shaft.
[0007] Preferably, each of the fixed plates is provided with an adjusting bolt. One end of the adjusting bolt passes through the fixed plate and is rotatably connected to the outside of the movable seat. The outer ring surface of the adjusting bolt is threadedly connected to the inside of the fixed plate.
[0008] Preferably, the movable seat is slidably connected to the outside of the two guide rails, and the movable seat is in contact with the outside of the support seat when it moves.
[0009] Preferably, a telescopic rod is installed on the outside of the movable seat at the top and bottom of the guide groove. A return spring is installed on the outer ring surface of the telescopic rod. A handle is installed on one of the outer ends of the telescopic rod. Positioning rods are installed at both ends of the handle near the telescopic rod.
[0010] Preferably, the outer side dimension of the guide block is adapted to the inner side wall dimension of the guide groove, and when the guide block is inserted into the inside of the guide groove, the fixed arc plate is in close contact with the outside of the movable seat.
[0011] Preferably, fixing ears are installed on the outside of the fixing arc plate and on both sides of the guide block. The fixing ears have positioning holes on their outside. When the fixing arc plate is in close contact with the outside of the movable seat, the positioning rod can be inserted into the inside of the positioning hole.
[0012] In summary, this utility model has the following beneficial technical effects:
[0013] This high-efficiency sealing structure for a high-pressure blower shaft seal involves rotating an adjusting bolt, which moves relative to a fixed plate. This pushes or pulls a movable seat along a guide rail, adjusting its position and ensuring the sealing gasket on the fixed arc plate fits snugly against the rotating shaft, guaranteeing a tight seal. When the gasket needs replacement, pulling the handle extends the telescopic rod, stretching the return spring and moving the positioning rod. Once the fixed arc plate is in the correct position against the movable seat, releasing the handle causes the return spring to shorten the telescopic rod, resetting the handle and positioning rod. The positioning rod, under the action of the return spring, engages in the positioning hole on the fixed ear, securing the fixed arc plate. This design facilitates easy assembly and disassembly, allowing for convenient gasket replacement and offering superior practicality. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0015] Figure 2 This is a utility model Figure 1 Partial structural diagram;
[0016] Figure 3 This is a utility model Figure 2 Partial structural layering diagram;
[0017] Figure 4 This is a utility model Figure 3 A schematic diagram of the partial structure's layering.
[0018] Explanation of reference numerals in the attached drawings: 1. Blower body; 2. Rotating shaft; 3. Bearing seat; 301. Through hole; 4. Fixing plate; 5. Guide rail; 6. Movable seat; 601. Guide groove; 7. Fixing arc plate; 8. Guide block; 9. Sealing gasket; 10. Adjusting bolt; 11. Telescopic rod; 12. Return spring; 13. Handle; 14. Positioning rod; 15. Fixing ear; 1501. Positioning hole. Detailed Implementation
[0019] The following is in conjunction with the appendix Figure 1 - Figure 4 The present invention will be described in further detail below.
[0020] A high-efficiency sealing structure for a high-pressure blower shaft seal, referring to... Figure 1 - Figure 4 The device includes a blower body 1, a bearing seat 3 mounted on the outside of the blower body 1, a through hole 301 at the center of the outside of the bearing seat 3, a rotating shaft 2 mounted on the outside of the blower body 1 through the through hole 301, fixed plates 4 symmetrically mounted on both ends of the outside of the bearing seat 3, guide rails 5 mounted on the outside of the bearing seat 3 at the top and bottom of the through hole 301, movable seats 6 mounted on the two guide rails 5 on both sides of the through hole 301, guide grooves 601 opened on the outside of the movable seats 6, a fixed arc plate 7 mounted on one end of the outside of the movable seats 6, a guide block 8 mounted on one side of the fixed arc plate 7 inside the guide groove 601, and a sealing gasket 9 mounted on the inner side wall of the fixed arc plate 7 close to the outside of the rotating shaft 2.
[0021] Reference Figure 1 - Figure 3Each fixed plate 4 is equipped with an adjusting bolt 10. One end of the adjusting bolt 10 passes through the fixed plate 4 and is rotatably connected to the outside of the movable seat 6. The outer ring surface of the adjusting bolt 10 is threadedly connected to the inside of the fixed plate 4. By rotating the adjusting bolt 10, since the adjusting bolt 10 is threadedly connected to the fixed plate 4 and one end is rotatably connected to the movable seat 6, the adjusting bolt 10 will move relative to the fixed plate 4, thereby pushing or pulling the movable seat 6 along the guide rail 5 to adjust the position of the movable seat 6, so that the tightness on the fixed arc plate 7 is adjusted. The gasket 9 can better fit tightly against the rotating shaft 2, ensuring a sealing effect. The movable seat 6 is slidably connected to the outside of the two guide rails 5, and the movable seat 6 is in contact with the outside of the bearing seat 3 when it moves. The movable seat 6 slides on the guide rails 5, and the guide rails 5 restrict the movement direction of the movable seat 6 so that it can only move along a specific direction. At the same time, the contact between the movable seat 6 and the outside of the bearing seat 3 ensures the stability of the movement of the movable seat 6, avoids the movable seat 6 from shaking or shifting during the movement, and ensures that the fixed arc plate 7 can be accurately moved to the appropriate position so that the gasket 9 can effectively seal the rotating shaft 2.
[0022] Reference Figure 1 - Figure 4 Telescopic rods 11 are installed on the outside of the movable seat 6, at the top and bottom of the guide groove 601. A return spring 12 is installed on the outer ring surface of the telescopic rod 11. A handle 13 is installed on one end of the telescopic rod 11. Positioning rods 14 are installed at both ends of the handle 13, close to the telescopic rod 11. When the sealing gasket 9 needs to be replaced, the handle 13 is pulled, which causes the telescopic rod 11 to extend. At the same time, the return spring 12 is stretched, and the positioning rod 14 moves accordingly.
[0023] Reference Figure 1 - Figure 4 The outer dimensions of the guide block 8 are matched with the inner wall dimensions of the guide groove 601. When the guide block 8 is inserted into the guide groove 601, the fixed arc plate 7 is tightly attached to the outside of the movable seat 6. The size matching between the guide block 8 and the guide groove 601 allows the guide block 8 to move smoothly within the guide groove 601. Simultaneously, when the guide block 8 is inserted into the guide groove 601, the fixed arc plate 7 is tightly attached to the outside of the movable seat 6, ensuring the relative position stability between the fixed arc plate 7 and the movable seat 6. Fixing ears 15 are installed on the outside of the fixed arc plate 7 and on both sides of the guide block 8. The fixed ear 15 has a positioning hole 1501 on its outside. When the fixed arc plate 7 is close to the outside of the movable seat 6, the positioning rod 14 can be inserted into the positioning hole 1501. When the fixed arc plate 7 moves to the appropriate position and is close to the outside of the movable seat 6, the handle 13 is released. The elastic force of the return spring 12 causes the telescopic rod 11 to shorten and drive the handle 13 and the positioning rod 14 to return to their original positions. Under the action of the return spring 12, the positioning rod 14 is inserted into the positioning hole 1501 on the fixed ear 15, thereby fixing the fixed arc plate 7. This makes disassembly and assembly convenient and facilitates the replacement of the sealing gasket 9.
[0024] The implementation principle of the high-efficiency sealing structure for a high-pressure blower shaft seal in this embodiment of the present invention is as follows: When using this structure, by rotating the adjusting bolt 10, which is threadedly connected to the fixed plate 4 and rotatably connected to the movable seat 6 at one end, the adjusting bolt 10 will move relative to the fixed plate 4, thereby pushing or pulling the movable seat 6 along the guide rail 5 to adjust the position of the movable seat 6. This allows the sealing gasket 9 on the fixed arc plate 7 to better fit against the rotating shaft 2, ensuring a sealing effect. The movable seat 6 slides on the guide rail 5, which restricts the movement direction of the movable seat 6, allowing it to move only in a specific direction. At the same time, the movable seat 6 is externally attached to the bearing seat 3, ensuring the stability of the movement of the movable seat 6 and preventing it from shaking or shifting during movement. This ensures that the fixed arc plate 7 can accurately move to the appropriate position so that the sealing gasket 9 can effectively seal the rotating shaft 2. When the sealing gasket 9 needs to be replaced, the handle 13 is pulled, which causes the telescopic rod 11 to extend. At the same time, the return spring 12 is stretched, and the positioning rod 14 moves accordingly. The guide block 8 and the guide groove 601 are size-matched, allowing the guide block 8 to move smoothly within the guide groove 601. When the guide block 8 is inserted into the guide groove 601, the fixed arc plate 7 is pressed tightly against the outside of the movable seat 6, ensuring the relative position between the fixed arc plate 7 and the movable seat 6 is stable. When the fixed arc plate 7 moves to the appropriate position and is pressed tightly against the outside of the movable seat 6, the handle 13 is released. The elastic force of the return spring 12 causes the telescopic rod 11 to shorten, which in turn causes the handle 13 and the positioning rod 14 to return to their original positions. Under the action of the return spring 12, the positioning rod 14 is inserted into the positioning hole 1501 on the fixed ear 15, realizing the positioning and fixing of the fixed arc plate 7. This makes disassembly and assembly convenient, facilitates the replacement of the sealing gasket 9, and improves the ease of operation and practicality.
[0025] Finally, the following points should be noted: First, in the description of this utility model, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be interpreted broadly, and can be mechanical connection or electrical connection, or internal connection between two components, or direct connection. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationship. When the absolute position of the described object changes, the relative positional relationship may change.
[0026] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.
[0027] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
[0028] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.
Claims
1. A high-efficiency sealing structure for a high-pressure blower shaft seal, comprising a blower body (1), characterized in that: The blower body (1) is equipped with a support seat (3) on its exterior. A through hole (301) is provided at the center of the exterior of the support seat (3). A rotating shaft (2) is provided on the exterior of the blower body (1) and through the through hole (301). Fixed plates (4) are symmetrically installed at both ends of the exterior of the support seat (3). Guide rails (5) are installed on the exterior of the support seat (3) at the top and bottom of the through hole (301). Movable seats (6) are installed on the exterior of the support seat (3) on the two guide rails (5) and on both sides of the through hole (301). A guide groove (601) is provided on the exterior of the movable seat (6). A fixed arc plate (7) is provided on one end of the exterior of the movable seat (6). A guide block (8) is installed on one side of the fixed arc plate (7) and inside the guide groove (601). A sealing gasket (9) is installed on the inner side wall of the fixed arc plate (7) and close to the exterior of the rotating shaft (2).
2. The high-efficiency sealing structure for a high-pressure blower shaft seal according to claim 1, characterized in that: Each of the fixed plates (4) is provided with an adjusting bolt (10). One end of the adjusting bolt (10) passes through the fixed plate (4) and is rotatably connected to the outside of the movable seat (6). The outer ring surface of the adjusting bolt (10) is threadedly connected to the inside of the fixed plate (4).
3. The high-efficiency sealing structure for a high-pressure blower shaft seal according to claim 2, characterized in that: The movable seat (6) is slidably connected to the outside of the two guide rails (5), and the movable seat (6) is in contact with the outside of the support seat (3) when it moves.
4. The high-efficiency sealing structure for a high-pressure blower shaft seal according to claim 1, characterized in that: Telescopic rods (11) are installed on the outside of the movable seat (6) and at the top and bottom of the guide groove (601). A return spring (12) is installed on the outer ring surface of the telescopic rod (11). A handle (13) is installed between the outer ends of the telescopic rods (11). A positioning rod (14) is installed at both outer ends of the handle (13) and near the telescopic rods (11).
5. The high-efficiency sealing structure for a high-pressure blower shaft seal according to claim 1, characterized in that: The outer side dimension of the guide block (8) is adapted to the inner side wall dimension of the guide groove (601), and when the guide block (8) is inserted into the interior of the guide groove (601), the fixed arc plate (7) is in close contact with the outside of the movable seat (6).
6. The high-efficiency sealing structure for a high-pressure blower shaft seal according to claim 5, characterized in that: Fixing ears (15) are installed on the outside of the fixed arc plate (7) and on both sides of the guide block (8). A positioning hole (1501) is provided on the outside of the fixing ear (15). When the fixed arc plate (7) is close to the outside of the movable seat (6), the positioning rod (14) can be connected to the inside of the positioning hole (1501).