Mechanical sealing structure for light kettle
By designing the adjustment structure in the mechanical seal structure and adjusting the compression amount of the spring, the leakage problem caused by the decrease in spring elasticity of the existing mechanical seal device is solved, and the long-term use and cost reduction of the seal device is achieved.
Patent Information
- Application Number
- CN202421064994.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-16
- Publication Date
- 2025-02-07
- Estimated Expiration
- 2034-05-16
AI Technical Summary
After the existing mechanical sealing device is used for a period of time, the elasticity of the spring decreases, resulting in a decrease in the fitting density between the static ring and the moving ring, which is prone to leakage, and the spring needs to be replaced frequently, which increases the cost.
A mechanical sealing structure for light kettle is designed. By setting up an adjustment structure, including a rotating block, a rotating shaft, an umbrella-shaped groove and a spring, the rotating block drives the annular plate to move downward in the annular groove to adjust the compression amount of the spring. Maintain a close fit between the static ring and the moving ring.
It effectively avoids leakage problems caused by the decrease in spring elasticity, extends the service life of the sealing device, reduces the frequency of replacing the spring, and reduces the cost.
Smart Images
Figure CN222437026U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of mechanical seals, in particular to a mechanical seal structure for a light kettle. Background Art
[0002] A mechanical seal (end face seal) is a device used to seal between a rotating shaft and a machine body. It is a device that prevents fluid leakage by maintaining contact and relative sliding under the action of fluid pressure and the elastic force of a compensation mechanism on at least one pair of end faces perpendicular to the axis of rotation and the cooperation of an auxiliary seal. It is commonly used in rotary fluid machinery such as pumps, compressors, and reaction stirred tanks, and is also used for seals in gear boxes, ship tail shafts, etc. However, the mechanical seal device currently used utilizes the annular end face in contact between a static ring and a dynamic ring to achieve a sealing effect. The contact between the static ring and the dynamic ring is achieved by squeezing the dynamic ring with a spring. The elasticity of the spring will decrease after a period of use, which reduces the tightness of the fit between the static ring and the dynamic ring, making it prone to leakage. The spring needs to be replaced frequently, which increases the cost of the mechanical seal. Utility Model Content
[0003] The main purpose of the utility model is to provide a mechanical sealing structure for a light kettle, which can effectively solve the problems in the background technology.
[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:
[0005] A mechanical seal structure for a light kettle comprises a shaft rod and a flange fixing seat, wherein a mounting hole is provided in an annular manner at the lower end of the flange fixing seat, a static ring is placed at the upper end of the flange fixing seat, a No. 1 positioning ring is provided at the periphery of the static ring, the No. 1 positioning ring is fixedly connected to the shaft rod by a No. 1 fixing bolt, a dynamic ring is provided at the upper end of the static ring, a No. 1 sealing ring is provided between the static ring and the shaft rod, a No. 2 sealing ring is provided between the dynamic ring and the shaft rod, a No. 2 positioning ring is provided at the upper end of the dynamic ring, the No. 2 positioning ring is fixedly connected to the shaft rod by a No. 2 fixing bolt, and an adjustment structure is provided on the No. 2 positioning ring.
[0006] Preferably, the adjustment structure includes a rotating block, a rotating shaft, a No. 1 bearing, a No. 1 umbrella-shaped tooth groove, a rectangular groove, a No. 2 umbrella-shaped tooth groove, a threaded rod, a No. 2 bearing, a rectangular slide groove, a rectangular column, a No. 1 annular groove, an annular plate, a spring, and a No. 2 annular groove.
[0007] Preferably, a No. 2 annular groove is formed in an annular shape on the upper surface of the movable ring, a No. 1 annular groove is formed in an annular shape on the lower surface of the No. 2 positioning ring, and an annular plate is slidably installed in the No. 1 annular groove.
[0008] Preferably, a spring is fixedly installed in a ring shape on the lower surface of the annular plate, and rectangular sliding grooves are opened on the upper surface of the No. 1 annular groove at both ends inside the No. 2 positioning ring, and a rectangular column is slidably installed on the inner surface of the rectangular sliding groove, and the lower end of the rectangular column is fixedly connected to the annular plate.
[0009] Preferably, a rectangular groove is provided at the upper end of the rectangular slide groove inside the No. 2 positioning ring, a No. 1 bearing is fixedly installed in the middle of one end surface of the rectangular groove, and a rotating shaft is movably installed on the inner surface of the No. 1 bearing.
[0010] Preferably, a rotating block is fixedly mounted on one end of the rotating shaft, a No. 1 umbrella-shaped tooth groove is provided on the other end of the rotating shaft, and a No. 2 bearing is fixedly mounted on the middle part of the lower surface of the rectangular groove.
[0011] Preferably, a threaded rod is movably installed on the inner surface of the No. 2 bearing, and a No. 2 umbrella-shaped tooth groove is opened at the upper end of the threaded rod. The No. 2 umbrella-shaped tooth groove opened at the upper end of the threaded rod is meshed with the No. 1 umbrella-shaped tooth groove opened at the other end of the rotating shaft, and a rectangular column is spirally installed on the outer surface of the threaded rod.
[0012] Compared with the prior art, the utility model has the following beneficial effects:
[0013] In the utility model, by providing an adjustment structure, when the elasticity of the spring decreases after being used for a period of time, the rotating block can be rotated to drive the annular plate to move downward in the No. 1 annular groove, thereby adjusting the compression amount of the spring, making the static ring and the dynamic ring fit tightly to avoid leakage, and there is no need to frequently replace the spring. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is a schematic diagram of the overall structure of a mechanical seal structure for a light kettle of the utility model;
[0015] Figure 2 This is a cross-sectional view of a mechanical seal structure for a light kettle of the utility model;
[0016] Figure 3 The utility model is a mechanical seal structure for a light kettle. Figure 2 Enlarged view of point A in the middle.
[0017] In the figure: 1, shaft; 2, flange fixing seat; 201, mounting hole; 3, No. 1 positioning ring; 301, No. 1 fixing bolt; 4, static ring; 401, dynamic ring; 402, No. 1 sealing ring; 403, No. 2 sealing ring; 5, No. 2 positioning ring; 501, No. 2 fixing bolt; 6, adjustment structure; 601, rotating block; 602, rotating shaft; 603, No. 1 bearing; 604, No. 1 umbrella-shaped tooth groove; 605, rectangular groove; 606, No. 2 umbrella-shaped tooth groove; 607, threaded rod; 608, No. 2 bearing; 609, rectangular slide groove; 610, rectangular column; 611, No. 1 annular groove; 612, annular plate; 613, spring; 614, No. 2 annular groove. DETAILED DESCRIPTION
[0018] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.
[0019] like Figure 1-3 As shown, a mechanical seal structure for a light kettle comprises a shaft 1 and a flange fixing seat 2, a mounting hole 201 is provided in an annular manner at the lower end of the flange fixing seat 2, a stationary ring 4 is placed at the upper end of the flange fixing seat 2, a No. 1 positioning ring 3 is arranged at the periphery of the stationary ring 4, the No. 1 positioning ring 3 is fixedly connected to the shaft 1 by a No. 1 fixing bolt 301, a dynamic ring 401 is arranged at the upper end of the stationary ring 4, a No. 1 sealing ring 402 is arranged between the stationary ring 4 and the shaft 1, a No. 2 sealing ring 403 is arranged between the dynamic ring 401 and the shaft 1, a No. 2 positioning ring 5 is arranged at the upper end of the dynamic ring 401, the No. 2 positioning ring 5 is fixedly connected to the shaft 1 by a No. 2 fixing bolt 501, and an adjustment structure 6 is arranged on the No. 2 positioning ring 5;
[0020] The adjustment structure 6 includes a rotating block 601, a rotating shaft 602, a No. 1 bearing 603, a No. 1 umbrella-shaped tooth groove 604, a rectangular groove 605, a No. 2 umbrella-shaped tooth groove 606, a threaded rod 607, a No. 2 bearing 608, a rectangular slide groove 609, a rectangular column 610, a No. 1 annular groove 611, an annular plate 612, a spring 613, and a No. 2 annular groove 614; a No. 2 annular groove 614 is formed in an annular manner on the upper surface of the moving ring 401, and a No. 1 annular groove is formed in an annular manner on the lower surface of the No. 2 positioning ring 5 611, an annular plate 612 is slidably installed in the No. 1 annular groove 611; a spring 613 is fixedly installed on the lower surface of the annular plate 612 in an annular shape; rectangular grooves 609 are provided on the upper surface of the No. 1 annular groove 611 at both ends of the interior of the No. 2 positioning ring 5, and a rectangular column 610 is slidably installed on the inner surface of the rectangular groove 609, and the lower end of the rectangular column 610 is fixedly connected to the annular plate 612; rectangular grooves 605 are provided on the upper ends of the rectangular grooves 609 in the No. 2 positioning ring 5, and the rectangular grooves 605 are fixedly connected to the lower end of the rectangular grooves 609. A No. 1 bearing 603 is fixedly installed in the middle of the end surface, and a rotating shaft 602 is movably installed on the inner surface of the No. 1 bearing 603; a rotating block 601 is fixedly installed at one end of the rotating shaft 602, and a No. 1 umbrella-shaped tooth groove 604 is provided at the other end of the rotating shaft 602, and a No. 2 bearing 608 is fixedly installed in the middle of the lower surface of the rectangular groove 605; a threaded rod 607 is movably installed on the inner surface of the No. 2 bearing 608, and a No. 2 umbrella-shaped tooth groove 606 is provided at the upper end of the threaded rod 607. The No. 2 umbrella-shaped tooth groove 606 provided at the upper end of the threaded rod 607 is meshed with the No. 1 umbrella-shaped tooth groove 604 provided at the other end of the rotating shaft 602, and a rectangular column 610 is spirally installed on the outer surface of the threaded rod 607. When the elasticity of the spring 613 decreases after being used for a period of time, the rotating block 601 can be rotated to drive the annular plate 612 to move downward in the No. 1 annular groove 611, thereby adjusting the compression of the spring 613, so that the static ring 4 and the dynamic ring 401 fit closely to avoid leakage, and there is no need to frequently replace the spring 3.
[0021] It should be noted that the utility model is a mechanical seal structure for a light kettle. When the elasticity of the spring 613 decreases after being used for a period of time, it is necessary to rotate the rotating block 601 first, so that the rotating block 601 drives the rotating shaft 602 to rotate on the inner surface of the No. 1 bearing 603. Because the No. 2 umbrella-shaped tooth groove 606 opened at the upper end of the threaded rod 607 is engaged with the No. 1 umbrella-shaped tooth groove 604 opened at the other end of the rotating shaft 602, the threaded rod 607 is driven to rotate on the inner surface of the No. 2 bearing 608, so that the rectangular column 610 spirally installed on the outer surface of the threaded rod 607 slides downward in the rectangular slide groove 609, and drives the annular plate 612 fixedly installed at the lower end of the rectangular column 610 to slide downward in the No. 1 annular groove 611, thereby squeezing the spring 613 annularly installed on the lower surface of the annular plate 612, and adjusting the compression amount of the spring 613, so that the static ring 4 and the dynamic ring 401 fit closely, avoid leakage, and there is no need to frequently replace the spring 3.
[0022] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.
Claims
1. A mechanical seal structure for a light kettle, characterized in that: The invention comprises a shaft (1) and a flange fixing seat (2), wherein a mounting hole (201) is provided in an annular shape at the lower end of the flange fixing seat (2), a stationary ring (4) is placed at the upper end of the flange fixing seat (2), a No. 1 positioning ring (3) is arranged on the periphery of the stationary ring (4), the No. 1 positioning ring (3) and the shaft (1) are fixedly connected by a No. 1 fixing bolt (301), a moving ring (401) is arranged at the upper end of the stationary ring (4), a No. 1 sealing ring (402) is arranged between the stationary ring (4) and the shaft (1), a No. 2 sealing ring (403) is arranged between the moving ring (401) and the shaft (1), a No. 2 positioning ring (5) is arranged at the upper end of the moving ring (401), the No. 2 positioning ring (5) and the shaft (1) are fixedly connected by a No. 2 fixing bolt (501), and an adjustment structure (6) is arranged on the No. 2 positioning ring (5).
2. A mechanical seal structure for a light kettle according to claim 1, characterized in that: The regulating structure (6) comprises a rotating block (601), a rotating shaft (602), a No. 1 bearing (603), a No. 1 umbrella-shaped tooth groove (604), a rectangular groove (605), a No. 2 umbrella-shaped tooth groove (606), a threaded rod (607), a No. 2 bearing (608), a rectangular sliding groove (609), a rectangular column (610), a No. 1 annular groove (611), an annular plate (612), a spring (613), and a No. 2 annular groove (614).
3. A mechanical seal structure for a light kettle according to claim 2, characterized in that: The upper surface of the moving ring (401) is provided with a second annular groove (614) in an annular shape, and the lower surface of the second positioning ring (5) is provided with a first annular groove (611) in an annular shape. An annular plate (612) is slidably mounted in the first annular groove (611).
4. A mechanical seal structure for a light kettle according to claim 3, characterized in that: A spring (613) is fixedly installed in a ring shape on the lower surface of the annular plate (612), and rectangular sliding grooves (609) are provided on the upper surfaces of the first annular grooves (611) at both ends inside the second positioning ring (5). A rectangular column (610) is slidably installed on the inner surface of the rectangular sliding groove (609), and the lower end of the rectangular column (610) is fixedly connected to the annular plate (612).
5. A mechanical seal structure for a light kettle according to claim 4, characterized in that: A rectangular groove (605) is provided at the upper end of the rectangular slide groove (609) inside the No. 2 positioning ring (5), a No. 1 bearing (603) is fixedly installed in the middle of one end surface of the rectangular groove (605), and a rotating shaft (602) is movably installed on the inner surface of the No. 1 bearing (603).
6. A mechanical seal structure for a light kettle according to claim 5, characterized in that: A rotating block (601) is fixedly mounted on one end of the rotating shaft (602), a No. 1 umbrella-shaped tooth groove (604) is provided on the other end of the rotating shaft (602), and a No. 2 bearing (608) is fixedly mounted on the middle part of the lower surface of the rectangular groove (605).
7. A mechanical seal structure for a light kettle according to claim 6, characterized in that: A threaded rod (607) is movably mounted on the inner surface of the No. 2 bearing (608), and a No. 2 umbrella-shaped tooth groove (606) is provided at the upper end of the threaded rod (607). The No. 2 umbrella-shaped tooth groove (606) provided at the upper end of the threaded rod (607) is meshed with a No. 1 umbrella-shaped tooth groove (604) provided at the other end of the rotating shaft (602), and a rectangular column (610) is spirally mounted on the outer surface of the threaded rod (607).